Marvin Zwerin, DO
NPI 1831171859 · Physical Medicine & Rehabilitation Physician · San Rafael, CA
Marvin Zwerin, DO is a Physical Medicine & Rehabilitation Physician provider in San Rafael, CA (NPI 1831171859).
Provider details
- NPI number
- 1831171859
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A3234 (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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Hydrochlorothiazide | 14 |
| Allopurinol | 13 |
| Doxazosin Mesylate | 13 |
| Finasteride | 13 |
| Lisinopril | 13 |
| Metformin Hclbrand: Metformin Hcl Er | 13 |
| Simvastatin | 13 |
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 no Part D record, 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
- 2005-11-16
- Last updated
- 2010-06-10
Frequently asked questions
- What is Marvin Zwerin's NPI number?
- Marvin Zwerin's National Provider Identifier (NPI) is 1831171859, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marvin Zwerin's specialty?
- Marvin Zwerin is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is Marvin Zwerin located?
- Marvin Zwerin's practice location on file with NPPES is 24 Professional Center Pkwy, San Rafael, CA 94903-2756.
- What is Marvin Zwerin's phone number?
- The practice phone number listed in the NPPES registry for Marvin Zwerin is (415) 492-8881.
- Is Marvin Zwerin's NPI active?
- Yes — Marvin Zwerin's NPI (1831171859) is active in the NPPES registry as of the last update on 2010-06-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.