Michael William Gaynon, MD
Ophthalmology Physician · Palo Alto, CA
Michael William Gaynon, MD is an ophthalmology physician with a practice address in Palo Alto, California, and NPI 1023127974, issued on Aug 30, 2006. Check the license (California C37116, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael William Gaynon
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- C37116 CA
Self-reported in NPPES; status is on the state search - Practice location
- 725 Welch RD, Palo Alto, CA 94304
- Phone
- (650) 497-8000
- Enumerated
- Aug 30, 2006
- Record last updated
- Apr 4, 2024
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 725 Welch RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ali Abdelhafiz Abdelsamea, MDPediatrics Physician1699390104
- Alireza Abdollah Shamshirsaz, M.D.Obstetrics & Gynecology Physician1881804235
Verify Michael William Gaynon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C37116Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $146.20
1 payment: food and beverage; the largest payer was Mallinckrodt Hospital Products Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Michael William Gaynon among 2,899 ophthalmology physician records in California
Michael William Gaynon, 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 updated2024 · 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 Palo Alto → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Amal Al-Lozi, MDPalo Alto, CA 943041093211096
- Eric Amesbury, MDPalo Alto, CA 943041891768644
- Glenn Cockerham, M.D.Palo Alto, CA 943041932118478
- Neil Friedman, MDPalo Alto, CA 943041477644334
- Herbert Gershen, MDPalo Alto, CA 943041982792826
- Lydia Hsu, M.D.Palo Alto, CA 943041356554679
- Irma Muminovic, MDPalo Alto, CA 943041689093197
- Thomas Rice, M.D.Palo Alto, CA 943041558300012
Common questions
What is Michael William Gaynon, MD's NPI number?
Michael William Gaynon, MD's National Provider Identifier (NPI) is 1023127974, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael William Gaynon, MD located?
The NPPES record lists a practice address at 725 Welch RD, Palo Alto, CA, 94304. Phone: (650) 497-8000. Providers update this record themselves, so call before visiting.
How can I verify Michael William Gaynon, MD's license?
NPPES lists California license number C37116, 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.
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.