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Edit this profileAt a glance
- 3120 Mission Dr, Santa Cruz, CA 95065
About William Harmon
Based in Santa Cruz, CA, William Harmon is listed in the NPI registry under addiction psychiatry. According to Medicare claims data, William cared for 72 Medicare patients across 630 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more and psychotherapy with evaluation and management visit, 45 minutes. NPI 1194883314 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
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
- (831) 462-0164
- Email not available
Practice Locations
3120 MISSION DR
Santa Cruz, CA 95065
Conditions Commonly Evaluated or Treated
Within Psychiatry 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
Anxiety, trauma, and obsessive-compulsive
Mood disorders
Psychotic disorders
Substance-related and addictive
Addiction & Substance Use
Cognitive and adjustment
Eating Disorders
Eating, sleep, and somatic
Mood & Depression
Neurodevelopmental and behavioral
Personality and dissociative
Sleep & Wakefulness
Procedures & services
Most searched procedures
- Anxiety and depression treatment
- Cognitive behavioral therapy
- Medication management
- Psychiatric evaluation
- Telepsychiatry
Assessment
Addiction care
Addiction Medicine
Assessments
Brain stimulation
Consultations
Diagnostics
Inpatient care
Interventional psychiatry
Psychotherapy
Sleep Medicine
Specialized care
Therapy
Therapy and care
Procedures Most Often Billed to Medicare
630 services · 72 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychotherapy with evaluation and management visit, 45 minutes | Treatment | 90836 |
314 | Too few peers to compare |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
316 | More often than most peers in Addiction Psychiatry |
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 with evaluation and management visit, 45 minutes 2
Providers in CA who bill this service to Medicare most often.
Common questions
What is William Harmon's specialty?
William Harmon is an addiction psychiatry in Santa Cruz, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find William Harmon?
William Harmon is listed at 3120 Mission Dr, Santa Cruz, CA 95065. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact William Harmon?
The number on file is (831) 462-0164. Contact the office directly to confirm availability and scheduling.
NPI registry
What is William Harmon's NPI number?
William Harmon's National Provider Identifier is 1194883314. 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
How long has William Harmon been practicing?
William Harmon has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is William Harmon known for?
According to Medicare billing data, William Harmon provides treatments such as psychotherapy with evaluation and management visit, 45 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has William Harmon confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by William Harmon. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.