Marvin B. Zwerin, DO
Physical Medicine & Rehabilitation Physician · San Rafael, CA
Marvin B. Zwerin, DO is a physical medicine & rehabilitation physician with a practice address in San Rafael, California, and NPI 1831171859, issued on Nov 16, 2005. Check the license (California 20A3234, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marvin B. Zwerin
- Credential
- DO
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License number
- 20A3234 CA
Self-reported in NPPES; status is on the state search - Practice location
- 24 Professional Center Pkwy, San Rafael, CA 94903
- Phone
- (415) 492-8881
- Enumerated
- Nov 16, 2005
- Record last updated
- Jun 10, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (415) 492-8875
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 1,549 in California → Look up another NPI →
Verify Marvin B. Zwerin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A3234Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024
109 Medicare Part D claims, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D.
Most prescribed
- Hydrochlorothiazide14 claims
- Allopurinol13 claims
- Doxazosin Mesylate13 claims
- Finasteride13 claims
- Lisinopril13 claims
- Metformin Hcl Er13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Marvin B. Zwerin among 1,549 physical medicine & rehabilitation physician records in California
Marvin B. Zwerin, DO is one of 1,549 physical medicine & rehabilitation physician records with a practice address in California. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 97% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileNo · 51% of these records are
- Record last updated2010 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208100000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physical Medicine & Rehabilitation Physician providers in California
There are 1,549 physical medicine & rehabilitation physician records in California.
All 1,549 in California → Every provider in San Rafael → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Mary Air, M.D.San Rafael, CA 949031376772913
- Rebecca Anderson, PTASan Rafael, CA 949031396448080
- Linda Choe, MDSan Rafael, CA 949031891879888
- Edward Demayo, MDSan Rafael, CA 949031821172891
- Ronald Gaines, MDSan Rafael, CA 949031174607246
- Shaima Khandaker, MDSan Rafael, CA 949031487276291
- Jennifer McIntyreSan Rafael, CA 949031891473989
- Scott Pinner, M.D.San Rafael, CA 949031326020694
Common questions
What is Marvin B. Zwerin, DO's NPI number?
Marvin B. Zwerin, DO's National Provider Identifier (NPI) is 1831171859, issued on Nov 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Marvin B. Zwerin, DO located?
The NPPES record lists a practice address at 24 Professional Center Pkwy, San Rafael, CA, 94903. Phone: (415) 492-8881. Providers update this record themselves, so call before visiting.
How can I verify Marvin B. Zwerin, DO's license?
NPPES lists California license number 20A3234, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marvin B. Zwerin, DO prescribe under Medicare Part D?
In 2024, Marvin B. Zwerin, DO had 109 Medicare Part D claims; the average among physical medicine & rehabilitation physician prescribers was 727. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.