Alan Cohen, MD
NPI 1538139860 · Psychiatry Physician · San Leandro, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alan Cohen, MD is a Psychiatry Physician provider in San Leandro, CA (NPI 1538139860).
Provider details
- NPI number
- 1538139860
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G51201 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Olanzapine | 71 |
| Paliperidone Palmitatebrand: Invega Sustenna | 39 |
| Aripiprazolebrand: Abilify Maintena | 38 |
| Lithium Carbonate | 37 |
| Trazodone Hcl | 31 |
| Topiramate | 26 |
| Sertraline Hcl | 19 |
| Lorazepam | 17 |
| Divalproex Sodiumbrand: Divalproex Sodium Er | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is Alan Cohen's NPI number?
- Alan Cohen's National Provider Identifier (NPI) is 1538139860, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alan Cohen's specialty?
- Alan Cohen is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Alan Cohen located?
- Alan Cohen's practice location on file with NPPES is 2045 Fairmont Dr, San Leandro, CA 94578-1088.
- What is Alan Cohen's phone number?
- The practice phone number listed in the NPPES registry for Alan Cohen is (510) 667-7516.
- Does Alan Cohen accept Medicare?
- Alan Cohen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alan Cohen's NPI active?
- Yes — Alan Cohen's NPI (1538139860) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.