James Grossman, P.A.
NPI 1356776355 · Physician Assistant · Santa Rosa, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Grossman, P.A. is a Physician Assistant provider in Santa Rosa, CA (NPI 1356776355).
Provider details
- NPI number
- 1356776355
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- P.A.
- Sex
- Male
- Sole proprietor
- No
- License
- 23091 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluorouracil | 111 | 105 |
| Calcipotriene | 67 | 64 |
| Imiquimod | 27 | 18 |
| Triamcinolone Acetonide | 17 | — |
| Clobetasol Propionate | 16 | — |
| Fluocinonide | 12 | — |
| Azelaic Acid | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-09-09
- Last updated
- 2022-01-03
Frequently asked questions
- What is James Grossman's NPI number?
- James Grossman's National Provider Identifier (NPI) is 1356776355, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Grossman's specialty?
- James Grossman is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is James Grossman located?
- James Grossman's practice location on file with NPPES is 1140 Sonoma Ave, Santa Rosa, CA 95405-4817.
- What is James Grossman's phone number?
- The practice phone number listed in the NPPES registry for James Grossman is (707) 527-7656.
- Does James Grossman accept Medicare?
- James Grossman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Grossman's NPI active?
- Yes — James Grossman's NPI (1356776355) is active in the NPPES registry as of the last update on 2022-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.