Gregg S. Gayre, MD
Ophthalmology Physician · San Rafael, CA
Gregg S. Gayre, MD is an ophthalmology physician with a practice address in San Rafael, California, and NPI 1689758682, issued on Oct 25, 2006. Check the license (California A80958, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gregg S. Gayre
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A80958 CA
Self-reported in NPPES; status is on the state search - Practice location
- 99 Montecillo RD, San Rafael, CA 94903
- Phone
- (415) 444-2000
- Enumerated
- Oct 25, 2006
- Record last updated
- Dec 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A809580 CA
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
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Verify Gregg S. Gayre in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A80958Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average ophthalmology physician in 2024
72 Medicare Part D claims for 48 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D.
Most prescribed
- Erythromycin57 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.
Gregg S. Gayre among 2,899 ophthalmology physician records in California
Gregg S. Gayre, MD is one of 2,899 ophthalmology physician records with a practice address in California. 79% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2021 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in San Rafael → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Richard Alvarado, MDSan Rafael, CA 949031154400299
- Alice Cheng-Bennett, MDSan Rafael, CA 949031942384938
- J. David Claiborne, MDSan Rafael, CA 949031801970884
- Peter Gorenberg, MDSan Rafael, CA 949031205910296
- Brian Matas, MDSan Rafael, CA 949031568546547
- Kathryn Najafi-Tagol, M.D.San Rafael, CA 949031184678112
- Bonnie Nickel, M.D.San Rafael, CA 949031881874709
- Stephen Phillips, MDSan Rafael, CA 949031871055277
Common questions
What is Gregg S. Gayre, MD's NPI number?
Gregg S. Gayre, MD's National Provider Identifier (NPI) is 1689758682, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregg S. Gayre, MD located?
The NPPES record lists a practice address at 99 Montecillo RD, San Rafael, CA, 94903. Phone: (415) 444-2000. Providers update this record themselves, so call before visiting.
How can I verify Gregg S. Gayre, MD's license?
NPPES lists California license number A80958, 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 Gregg S. Gayre, MD prescribe under Medicare Part D?
In 2024, Gregg S. Gayre, MD had 72 Medicare Part D claims for 48 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.