Our Team

I am Danell Bjornson

Co-Owner, Psychiatric Mental Health Nurse Practitioner

For the past several years Danell has been treating adults and children with a variety of psychiatric issues in an outpatient mental health clinic. Over time she developed a specific interest in treating ADHD as many of her clients, regardless of age, profession, or educational background presented with problems concentrating. Much of her practice was spent learning how to screen for other causes of attention problems such as depression, anxiety, stress, and fatigue. When ADHD was truly the primary diagnosis, she collaborated with her clients to optimize treatment. Over time it became increasingly apparent to her that medication alone was rarely sufficient to treat all problematic symptoms of ADHD. She feels strongly that both children and adults have the best outcome when medications are paired with skills training, education, and individual therapy. A commitment to helping clients obtain a comprehensive evaluation, accurate diagnosis, and evidence-based care led her to co-found Northwest ADHD Treatment Center. Danell graduated magna cum laude with a Bachelor of Science in Psychology, University of Mary Washington and magna cum laude with a Bachelor of Science in Nursing, Oregon Health and Science University. She earned a Master of Nursing degree from Oregon Health and Science University. Danell is nationally accredited in adult and family psychiatric mental health.

I am Daniel Lennen

Co-Owner, Clinical Psychologist

Dr. Lennen has received specialized training focused on the treatment/assessment of symptoms related to ADHD. Training includes, among others, the OHSU Pediatric Neuropsychology Clinic and Child Development Clinic. Here, he focused on assessing and treating neurological disorders such as ADHD. In addition to training in hospital environments, Dr. Lennen has experience working with adults and students from Elementary School through College focused on developing strategies to improve academic, interpersonal, occupational, and one's overall functioning. Dr. Lennen values the unique strengths of individuals with this disorder, appreciating that often interacting with those diagnosed with ADHD is often very exciting and amusing. Working together with Dr. Lennen, your primary mental health clinician, you will benefit from clear and concise education about ADHD, evidenced-based treatment practices, and a lot of laughter through the treatment process. Dr. Lennen received his Doctorate in Clinical Psychology (PsyD) from George Fox University and his Master's of Counseling from Western Seminary. Dr. Lennen has experience working with children, adolescents, and adults from diverse backgrounds in a variety of outpatient settings including community mental health organizations, medical hospitals, and university counseling centers.

I am Tim Neary

Clinical Psychologist

Dr. Neary works together with patients to develop an individualized approach that will help most effectively manage symptoms, as well as move toward becoming ‘the best version of themselves.’ After taking time to understand each person’s individual needs, treatment goals are developed that are specific and achievable. Dr. Neary provides evidence-based treatment that incorporates cognitive-behavioral, developmental, and person-centered approaches to provide treatment for adolescents, adults, families and groups. His specialties include the assessment and treatment of ADHD, learning and cognitive disorders, anxiety, panic, fears and depression. As a post-doctoral fellow at Kaiser Permanente, Dr. Neary managed the neuropsychological assessment clinic for the Salem Area, and received advanced training in the diagnosis of dementias, psychopharmacology, and the treatment of individuals experiencing anxiety or depression related to facing serious medical concerns. Dr. Neary received his doctorate in clinical psychology (PsyD) as well as a master’s degree in clinical psychology (MS) from Indiana State University. Dr. Neary also completed a master’s degree program in Counseling Psychology (MA) at Pacific University. He has been working in the mental health field for over 8 years, in a variety of outpatient and inpatient settings. He is a member of the American Psychological Association (APA), as well as the Oregon Psychological Association (OPA).

I am Heather Tollander

Clinical Psychologist

Dr. Tollander works with clients to help them find a balance between wholeheartedly accepting themselves and changing what they can. She takes an integrated approach to therapy that is informed by Dialectical Behavior Therapy, and Acceptance and Commitment Therapy and neurobiology. There are many ways to approach therapy and Dr. Tollander feels it is best to meet clients where they are in the healing process while remaining mindful of cultural or other differences. This could mean education about a recent diagnosis, practicing skills, or more! Regardless of the approach, she prioritizes trust and safety in her relationship with clients and feels having a sense of humor and curiosity are essential to the often serious nature of therapy. Dr. Tollander’s experience has given her the tools to work with a wide variety of clients and mental health concerns. In addition to ADHD, she has specialized experience and training to help clients with issues related to sexual orientation and gender identity, including clients who are considering or in transition. Dr. Tollander received her doctorate (PsyD) and master’s degree in clinical psychology from Pacific University. She completed her internship and residency at Portland State University. She earned her bachelor’s degree in geography at the University of California at Berkeley. Dr. Tollander has been working with people who have ADHD for over 10 years in many fun and exciting settings. They include, Job Corps, a summer camp for children and teens with ADHD, and a wilderness therapy school for boys with ADHD.

I am Kristen Miller

Clinical Psychologist

Dr. Miller takes a positive and collaborative approach to therapy. She values teamwork between herself and her clients and aims to help solve problems, rather than “fix” people. She utilizes evidence-based and solution-focused practices with humor, flexibility, and a warm interpersonal approach that tailors the process to meet the unique needs of each person. She has experience providing assessment and therapy to children, adolescents, young adults, and families to address a wide-range of issues, including ADHD, school problems, depression, anxiety, parent-child problems, behavioral problems, and trauma. Dr. Miller received her Masters (M.A.) and Doctorate in Clinical Psychology (Psy.D.) from George Fox University in Newberg, OR. She completed her internship at Northeast Treatment Centers in Philadelphia, PA and her residency at Kaiser Permanente in San Jose, CA. Dr. Miller has worked in a variety of settings with children, adolescents, young adults, and families including, primary care, community mental health, school-based mental health, and college counseling. She became licensed to practice in Oregon in 2016.

I am Meghan Crawford

Clinical Psychologist

Dr. Meghan Crawford is passionate about helping people grow to know and accept themselves as a whole person. She attends to the individual differences of each person and family that comes to treatment and creates targeted goals with her clients to best suit their needs. Her primary focus is with infants, toddlers, children, pre-teens, and teenagers. Her specialties include: ADHD, learning disorders, Autism and other developmental disorders, anxiety, obsessive compulsive disorder, sensory issues, social skills, family therapy, parenting, and parent coaching. After completing both her master's and doctoral degree (PsyD) in Clinical Psychology at Rosemead School of Psychology, she completed her postdoctoral hours at The Child Development Institute where she assessed and treated children under the age of 5. Subsequently, she completed the requirements towards certification in Infant-Family and Early Childhood Mental Health through the California Center for Infant-Family and Early Childhood Mental Health. She then transferred to Greenhouse Therapy Center to work with older children, adolescents, and adults who were diagnosed with developmental disorders as well as other mental health issues. There, she became certified at the Expert level in the DIR® & DIRFloortime® treatment approach through the Interdisciplinary Council on Development and Learning (ICDL). She worked for several years as a licensed clinical psychologist in California and became licensed in Oregon in 2014.

I am Meghan Polits

Clinical Psychologist

Dr. Polits has an integrated, holistic approach to therapy. She utilizes a variety of therapeutic approaches including cognitive behavioral therapy, as well as acceptance-based, motivational, and person-centered therapies. She believes that therapy is collaborative, and works with each client to tailor treatment to fit their unique needs, values, and personal goals for growth. Dr. Polits takes time to create a safe space and build a trusting therapeutic relationship with each client. She has experience diagnosing and treating a variety of presenting issues, including anxiety, mood disorders, trauma, adjustment, and ADHD. Dr. Polits received her Doctorate (Psy.D.) and Master's degree (M.A.) in Clinical Psychology from George Fox University. She has experience working in many settings with a variety of adults and adolescents, including primary care, school-based mental health, a VA medical center, and a hospital emergency setting.

I am Daniel Moshofsky

Clinical Psychologist

Dr. Moshofsky believes therapy works best when it is not a “one size fits all” approach. He values the uniqueness of each person and works collaboratively with his clients to develop a plan that is both effective and reasonable. Dr. Moshofsky utilizes an integrated approach to therapy that helps clients build useful skills and effectively navigate their interpersonal relationships. He has received specialized training and experience working with clients to manage their ADHD and other mental health symptoms within an educational or work environment. In addition to ADHD, Dr. Moshofsky has experience providing therapy and assessment services for a wide variety of presenting concerns, including, amongst other things, depression and mood disorders, anxiety disorders, learning and cognitive disorders, interpersonal relationships, and trauma. Dr. Moshofsky received his Master’s and Doctorate (PsyD) degrees in Clinical Psychology from George Fox University in Newberg, Oregon. He completed his internship at Washington State University Counseling and Psychological Services, and has worked in the K-12 public school system and outpatient primary care. Dr. Moshofsky is a postdoctoral resident in the state of Oregon.

I am Michelle Blum

Licensed Clinical Social Worker

Michelle has been providing mental health services to adults since 1989 and practicing clinical social work for the past 20 years. She has assisted adults in addressing a variety of problems, ranging from adjusting to life changes/stresses to living with severe mental illness. She has extensive experience working with people who suffer from depression, trauma, bipolar disorder, anxiety, and other psychiatric conditions as well as experience helping adults with personal issues around relationships, self-worth, grief/loss and substance use. Michelle just completed a 15-year career serving Veterans in an outpatient mental health clinic which she found very rewarding. She is now working full time as a mental health therapist at the NW ADHD Treatment Center where she works with adults who are struggling with ADHD, anxiety, depression and trauma. Her approach is individualized and strengths based; she gives careful attention to her clients’ attributes and how they affect all areas of their life. Through open discussion, she helps her clients see themselves more clearly and identify workable methods to improve quality of life. Frequently this means utilizing insight to recognize barriers that get in the way of success. She practices from an integrated model that includes developmental and learning theories, cognitive-behavioral and humanistic-existential approaches. She also utilizes mindfulness-based approaches, which help people, be in the present moment without judgment. No single method works for everyone, so her style varies, depending on her client’s individual needs and personalities. She is able to provide either short term, solution focused therapy or longer term, in depth therapy. She received her Bachelor of Arts in Psychology from the University of Oregon and her Master of Science degree in Social Work from Columbia University School of Social Work, New York. While earning her graduate degree she interned at St. Luke’s Roosevelt Hospital Outpatient Mental Health Clinic and in a mental clinic serving incarcerated women at Riker’s Island. In 2001 she became licensed in the state of Oregon.

I am Krispin Mayfield

Licensed Professional Counselor

Krispin employs a variety of psychotherapy techniques to partner with clients to meet their goals, including dialectical behavioral therapy, cognitive behavioral therapy, motivational interviewing, skill-building and person-centered therapy. He has a variety of experience in facilitating group therapy, ranging from psychological education to process-oriented groups. He believes relationships are key to human growth, and are a large part of the change process. He has experience treating ADHD, anxiety and mood disorders, interpersonal issues, as well as helping people heal and recover from trauma. He has also worked as a skills trainer to partner with the families of adolescents to implement practical behavioral solutions. Devoted to social equality in mental healthcare, Krispin has spent much of his counseling career working in distressed communities, including working with individuals in refugee and LGBTQ communities in Portland and Minneapolis. Prior to joining NW ADHD Treatment Center, he was a therapist at Western Psychological and Counseling Services. Krispin facilitates several groups, and is passionate about presenting ideas and skills in concrete ways that will benefit clients in their day-to-day lives. Krispin earned his BS at Multnomah University, and continued on there to graduate with his M.A. in counseling in 2012. He has been working in mental health for eight years, including completing his internship at Northwest Behavioral Healthcare Services, and supervised experience at Stark Mental Health Clinic in Minneapolis, MN. He was first licensed as a Licensed Professional Counselor in Minnesota in early 2014, and upon moving to Portland, was granted his license in Oregon in 2015.

I am Laura Hillman

Clinical Psychologist

I am Eliza Winter

Clinical Psychologist

Dr. Winter received a Master of Arts Degree in Experimental Psychology from California State University Northridge in 2008, and a PhD in Clinical Psychology with a forensic specialization from Simon Fraser University in Burnaby, British Columbia in 2015. She has extensive experience providing psychological assessment and treatment.

I am Megan Demerich

Doctor of Nursing Practice, Psychiatric Mental Health Nurse Practitioner

Dr. Demerich believes in a holistic and collaborative approach to mental health care. She works together with clients and families to determine their needs and the direction of care. She knows that that medications are only part of the treatment plan. They are most effective when combined with counseling, skills training, and healthy lifestyle choices, such as diet and exercise. Dr. Demerich has experience treating ADHD, anxiety disorders, depression and mood disorders in children, adolescents, and adults. She has worked as a psychiatric registered nurse and as a psychiatric nurse practitioner in the hospital setting. Dr. Demerich graduated cum laude with a Bachelor of Science in Psychology from the University of Florida. She also earned a Bachelor of Science in Nursing, a Master of Science in Nursing, and a Doctorate of Nursing Practice with a specialization in Psychiatric Mental Health Nursing from the University of Florida. Additionally, she was recognized by the University of Florida College of Nursing for academic excellence at the conclusion of her master’s degree education. Dr. Demerich is nationally accredited in psychiatric mental health nursing across the lifespan.

I am Kristine Heenk

Doctor of Nursing Practice, Psychiatric Mental Health Nurse Practitioner

Dr. Heenk specializes in treating children, adolescents, and young adults with ADHD as well as comorbid psychiatric conditions, including depression, anxiety, sleep problems, tics, and disruptive behavior disorders. She believes in utilizing a comprehensive, collaborative, and multi-modal approach to meet the assessment and treatment needs of her clients and their families. She incorporates aspects of evidence-based psychosocial, behavioral, and pharmacological interventions when indicated to achieve optimal treatment outcomes. Prior to joining the Northwest ADHD Treatment Center, Dr. Heenk worked in an outpatient, inpatient, and community mental health setting for the University of Florida, Department of Psychiatry, Division of Child and Adolescent Psychiatry. She has experience treating children, adolescents, and young adults with an array of psychiatric disorders of varying degrees of complexity and severity. Dr. Heenk received her education and training at the University of Florida. She graduated with a Bachelor of Science in Nursing degree, cum laude, Master of Science in Nursing degree with specialization in Psychiatric-Mental Health Nursing, and Doctor of Nursing Practice degree. Dr. Heenk was inducted into the Sigma Theta Tau International Honor Society of Nursing. The focus of her doctoral research was on stigmatization associated with ADHD in youth. Dr. Heenk is nationally accredited in psychiatric mental health nursing across the lifespan.

I am Jon Murphy

Psychiatric Mental Health Nurse Practitioner

Jonathan Murphy is passionate about working with individuals across the lifespan to help them overcome their challenges. He brings a multi-faced, eclectic approach, building a strong therapeutic rapport when utilizing medication-based treatment. Understanding the whole person is central to Jon's care-giving style, developing a thoughtful conceptualization of diagnosis before applying pharmacotherapy. Jonathan has worked closely with children and adolescents at Boston Children's Hospital for over 10 years on their inpatient psychiatric unit. He is excited have joined the NW ADHD team to build his skills and develop strong relationships with clients who are looking to enhance their lives by overcoming the obstacles associated with ADHD, depression, anxiety and mood disorders. Jonathan received his Master's of Science in Nursing from Boston College, in the Psychiatric-Mental Health Nurse Practitioner program, graduating Magna Cum Laude in 2017. Jonathan received his Bachelor of Science at University of Massachusetts Boston in 2014

I am Kate McDuffee

Psychiatric Mental Health Nurse Practitioner

Kate received her Master’s Degree in Nursing from Gonzaga Univsersity, specializing in Psychiatric Mental Health Nursing. She is a board certified Psychiatric Mental Health Nurse Practitioner in the state of Oregon

I am Alyssa Nolde

Clinical Psychologist Resident

Dr. Nolde has an integrated approach to therapy with an emphasis on acceptance and mindfulness-based techniques. She values the relationship between herself and the client and believes that the client is the expert on their own experience. She sees her role as helping the client move towards their goals in order to live a life they value. She has experience treating a variety of presenting issues, including anxiety, mood disorders, trauma, adjustment, ADHD, and learning disabilities. Dr. Nolde received her master’s degree (MS) and doctorate (PsyD) in clinical psychology from Pacific University. She has worked providing therapy and assessment services to adults in a variety of settings, including community mental health, primary care, college counseling, and a hospital emergency setting. Dr. Nolde is currently a Psychologist Resident at Northwest ADHD Treatment Center, under the supervision of Dr. Tim Neary.

I am Sean Whitehead

Office Manager

Sean has lived in the Portland area since 2001 and has been helping clients connect with quality providers for over five years. He studied Theater, Psychology, and Art, at St. John’s University in Minnesota. He enjoys the outdoors, pop culture, and spending time with his family and friends.

I am Julie Woodman

Assistant Office Manager

Hi! I'm Julie. I received my Bachelor's degree in Psychology from Oregon State University, and have worked in the mental health field since 2012. I have been with Northwest ADHD since 2016, and love what I do. I am proud to be a part of the amazing team of clinicians and administrative staff we have. I manage provider credentialing among other things, but my biggest focus is ensuring that all patients have a welcoming and positive experience. In my spare time, I enjoy rock climbing and candle making.

I am Melissa Elsasser-Holmes

Intake Coordinator

Hello! My name is Melissa and I am the Intake Coordinator for both locations of NW ADHD Treatment Center. I work with new patients who are seeking mental health services, making sure that our clinic would be the best fit for their care. I also schedule intake appointments, verify insurance benefits, and offer support and care as reaching out for mental health care can seem like a daunting obstacle to overcome. I am honored to walk alongside patients, and support them as much as I can along their journey towards health and wellness. In my spare time I enjoy anything creative (drawing, painting, illustrating) and cooking. I am graduating from Multnomah University Spring of 2019 with a Bachelor of Arts in Applied Psychology. Someday I hope to pursue a career in Counseling with a focus in Art Therapy, but for now I enjoy working "behind the scenes". My husband and I are excited to see our family to grow with our first child expected to join the world in 2019.

I am Melissa Cahill

Billing Assistant

Hello! My name is Melissa, I am new to Oregon but have worked in Psychology/Social work for the last 5 years. I obtained my Detox Certification and Psychiatric Technician Certification, and am currently obtaining my BS in Psychology, as well as continuing education for billing and coding. I am proud to be on the administrative team at Northwest ADHD, and am here to answer all of your billing questions! I have two sweet dogs who aspire to be therapy dogs in the future.

I am Emily Knox

Administrative Assistant

Hi, I'm Emily! I was born and raised in the Portland/Milwaukie OR areas. After growing up in a school where children with learning disabilities were not taken seriously, I decided to study Psychology. I then worked for five years as a teacher for preschool children, done one on one at home care for children with disabilities, assisted high school students prepare for college and create goals through the ASPIRE program, spent a year as a high school secretary, and worked as the assistant manager for two other offices. I have volunteered with shelters for the homeless and for community events through church. I received a Bachelor's in Psychology from Concordia University in 2014. Through all these experiences, I found myself enjoying helping people from a behind the scenes position such as through working as a receptionist, than through one on one assistance.

I am Melissa Butler

Administrative Assistant

I am Erin Wulf

Nurses' Administrative Assistant

Erin received her Bachelor of Arts from the University of Oregon, with a minor in Queer Studies. While at college, she volunteered with the board of the Eugene PFLAG, and has since volunteered with the Portland Q Center and The Ally Coalition, working toward safety and equality for everyone. This drive for helping people aligned perfectly with the opportunity to work in a mental health clinic. As the Nurses’ Administrative Assistant, Erin acts as a first point of contact between patients and the clinic’s Nurse Practitioners. She works to troubleshoot problems with pharmacies and insurance companies, and make sure patients are able to receive their medications.

Danell Bjornson

Danell Bjornson

Co-Owner, Psychiatric Mental Health Nurse Practitioner

Danell Bjornson

Co-Owner, Psychiatric Mental Health Nurse Practitioner

Daniel Lennen

Daniel Lennen

Co-Owner, Clinical Psychologist

Daniel Lennen

Co-Owner, Clinical Psychologist

Tim Neary

Tim Neary

Clinical Psychologist

Tim Neary

Clinical Psychologist

Heather Tollander

Heather Tollander

Clinical Psychologist

Heather Tollander

Clinical Psychologist

Kristen Miller

Kristen Miller

Clinical Psychologist

Kristen Miller

Clinical Psychologist

Meghan Crawford

Meghan Crawford

Clinical Psychologist

Meghan Crawford

Clinical Psychologist

Meghan Polits

Meghan Polits

Clinical Psychologist

Meghan Polits

Clinical Psychologist

Daniel Moshofsky

Daniel Moshofsky

Clinical Psychologist

Daniel Moshofsky

Clinical Psychologist

Michelle Blum

Michelle Blum

Licensed Clinical Social Worker

Michelle Blum

Licensed Clinical Social Worker

Krispin Mayfield

Krispin Mayfield

Licensed Professional Counselor

Krispin Mayfield

Licensed Professional Counselor

Laura Hillman

Laura Hillman

Clinical Psychologist

Laura Hillman

Clinical Psychologist

Eliza Winter

Eliza Winter

Clinical Psychologist

Eliza Winter

Clinical Psychologist

Megan Demerich

Megan Demerich

Doctor of Nursing Practice, Psychiatric Mental Health Nurse Practitioner

Megan Demerich

Doctor of Nursing Practice, Psychiatric Mental Health Nurse Practitioner

Kristine Heenk

Kristine Heenk

Doctor of Nursing Practice, Psychiatric Mental Health Nurse Practitioner

Kristine Heenk

Doctor of Nursing Practice, Psychiatric Mental Health Nurse Practitioner

Jon Murphy

Jon Murphy

Psychiatric Mental Health Nurse Practitioner

Jon Murphy

Psychiatric Mental Health Nurse Practitioner

Kate McDuffee

Kate McDuffee

Psychiatric Mental Health Nurse Practitioner

Kate McDuffee

Psychiatric Mental Health Nurse Practitioner

Alyssa Nolde

Alyssa Nolde

Clinical Psychologist Resident

Alyssa Nolde

Clinical Psychologist Resident

Sean Whitehead

Sean Whitehead

Office Manager

Sean Whitehead

Office Manager

Julie Woodman

Julie Woodman

Assistant Office Manager

Julie Woodman

Assistant Office Manager

Melissa Elsasser-Holmes

Melissa Elsasser-Holmes

Intake Coordinator

Melissa Elsasser-Holmes

Intake Coordinator

Melissa Cahill

Melissa Cahill

Billing Assistant

Melissa Cahill

Billing Assistant

Emily Knox

Emily Knox

Administrative Assistant

Emily Knox

Administrative Assistant

Melissa Butler

Melissa Butler

Administrative Assistant

Melissa Butler

Administrative Assistant

Erin Wulf

Erin Wulf

Nurses' Administrative Assistant

Erin Wulf

Nurses' Administrative Assistant