Provider Profile
Darien S. Fenn, PhD
Unclaimed ProfileAbout Dr. Fenn
Listed in the NPI registry as a clinical psychologist, Darien S. Fenn, PhD practices in Wilsonville, OR. Darien is also listed as specializing in psychologist — clinical. According to Medicare claims data, the services billed most often include psychotherapy, 1 hour. NPI 1164550224 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (503) 320-2503
- Email not available
Practice Locations
23540 SW GAGE RD
Wilsonville, OR 97070
Concerns and Conditions Addressed
Within Clinical Psychology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Abuse & trauma
Addiction
- Alcohol use disorder
- Drug addiction
- Gambling Addiction
- Porn addiction
- Video Game Addiction
Anxiety
- Agoraphobia
- Childhood Anxiety and Depression
Behavioral
Child & adolescent
Cognitive
- Mild cognitive impairment
Dissociative
Eating & Body Image
Health & Pain
Identity
Interpersonal
Life transitions
- Divorce adjustment
- Identity crisis
Mood & Emotion
- Anger issues
- Bipolar disorder
- Illness anxiety disorder
- Panic disorder
- Postpartum depression
- Social anxiety disorder
- Specific phobias
Neurodevelopmental
- Autism
- Learning disorders
Personal Growth
Personality
Self-harm & crisis
Sensory & neurological
- Concussion emotional symptoms
- Hatred of Specific Sounds
Severe mental illness
- Schizophrenia
Sleep
- Chronic Nightmares
- Insomnia
Stress & Lifestyle
Stress & lifestyle
Work & identity
Procedures & services
Most searched procedures
Assessments
- Autism screening
- Dementia Screening
- Gender Affirming Care Assessment
- Memory testing
Behavioral Interventions
- Acceptance and commitment therapy (ACT)
- Anger management
- Dialectical behavior therapy (DBT)
- Exposure and response prevention (ERP)
- Habit reversal training
- Prolonged exposure therapy
Brain-based therapies
Child & adolescent
Crisis & safety
- Suicide safety planning
Group Programs
Individual therapy
Interpersonal
Mind-Body
Parenting & Support
Psychodynamic & Integrative
- Internal family systems (IFS)
- Interpersonal psychotherapy
- Psychodynamic psychotherapy
- Schema Therapy
Relationship & family
Skill building
- Executive functioning coaching
Sleep & Health
- Insomnia Treatment (CBT-I)
- Pain Reprocessing Therapy
Specialized therapy
Stress & Lifestyle
- Stress Management Counseling
Testing & evaluation
- ADHD Evaluation
- Bariatric Surgery Evaluation
- Emotional Support Animal Evaluation
- Forensic psychological evaluation
- Neuropsychological Testing
- Psychoeducational Testing
Therapy formats
Trauma therapy
Procedures Most Often Billed to Medicare
270 services · 20 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychotherapy, 1 hour | Treatment | 90837 |
270 | As often as other peers in Clinical Psychologist |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also performs Psychotherapy, 1 hour 8
Providers in OR who bill this service to Medicare most often.
Common questions
What is Dr. Fenn's specialty?
Dr. Fenn is a clinical psychologist in Wilsonville, OR. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Fenn?
Dr. Fenn is listed at 23540 Sw Gage Rd, Wilsonville, OR 97070. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Fenn?
The number on file is (503) 320-2503. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Fenn's NPI number?
Dr. Fenn's National Provider Identifier is 1164550224. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Fenn's medical education?
Dr. Fenn attended Other, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Fenn been practicing?
Dr. Fenn has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Fenn known for?
According to Medicare billing data, Dr. Fenn provides treatments such as psychotherapy, 1 hour. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Fenn confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Fenn. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.