Robert J. Gabbay, D.O.
Family Medicine Physician · Santa Rosa, CA
Robert J. Gabbay, D.O. is a family medicine physician with a practice address in Santa Rosa, California, and NPI 1821028283, issued on Jul 3, 2006. Check the license (California 20A6451, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert J. Gabbay
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A6451 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3775 Brickway Blvd., Santa Rosa, CA 95403
- Phone
- (707) 535-6271
- Enumerated
- Jul 3, 2006
- Record last updated
- Dec 22, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (707) 526-5633
- Medicare enrollment
- Enrolled (PECOS I20050713000651); accepts Medicare assignment
- Medical or professional school
- College Of Osteo Med Of The Pacific At Pomona, 1992
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Robert J. Gabbay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A6451Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average family medicine physician in 2024
12 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Robert J. Gabbay among 17,133 family medicine physician records in California
Robert J. Gabbay, D.O. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1992 · median 2005 among the 10,652 with a school on file
- Record last updated2012 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
264 family medicine physician records list a practice address in Santa Rosa
They are 264 of the 6,884 NPPES records with a practice address in Santa Rosa, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Santa Rosa → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Karen Gelphman, MDSanta Rosa, CA 954031972565703
- Jennifer Lee, MDSanta Rosa, CA 954031447288204
- Azra Mael, M.D.Santa Rosa, CA 954031477596518
- Patricia Mazzetti Hiserote, D.O.Santa Rosa, CA 954031821002593
- Neil Nathan, MDSanta Rosa, CA 954031174510788
- Amelia Randolph, MDSanta Rosa, CA 954031093739708
- Edward Rose, M.D.Santa Rosa, CA 954031750354106
- Karen Rose, M.D.Santa Rosa, CA 954031568406007
Common questions
What is Robert J. Gabbay, D.O.'s NPI number?
Robert J. Gabbay, D.O.'s National Provider Identifier (NPI) is 1821028283, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert J. Gabbay, D.O. located?
The NPPES record lists a practice address at 3775 Brickway Blvd., Santa Rosa, CA, 95403. Phone: (707) 535-6271. Providers update this record themselves, so call before visiting.
How can I verify Robert J. Gabbay, D.O.'s license?
NPPES lists California license number 20A6451, 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 Robert J. Gabbay, D.O. prescribe under Medicare Part D?
In 2024, Robert J. Gabbay, D.O. had 12 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.