Bryan L. Gammon, M.D.
Dermatopathology Physician · San Jose, CA
Bryan L. Gammon, M.D. is a dermatopathology physician with a practice address in San Jose, California, and NPI 1518134154, issued on May 13, 2008. Check the license (California A118101, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Bryan L. Gammon
- Credential
- M.D.
- Primary taxonomy
- Dermatopathology Physician 207ND0900X
- License numbers
- A118101 CA
R0862 TX
Self-reported in NPPES; status is on the state search - Practice location
- 2420 Samaritan Dr, San Jose, CA 95124
- Phone
- (408) 369-5600
- Enumerated
- May 13, 2008
- Record last updated
- Jun 11, 2026
- Fax
- (408) 369-5625
- Medicare enrollment
- Enrolled (PECOS I20130110000543); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest dermatopathology physician records → All 64 in California → Look up another NPI →
Also registered at 2420 Samaritan Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Julia Arzeno, M.D. (06/2017)Dermatology Physician1578094785
- Joseph Cirone, MDPediatrics Physician1457319022
- Sebastien De Feraudy, MD-PHDAnatomic Pathology Physician1982913844
- Joe Gorelick, N.PNurse Practitioner1811061369
Verify Bryan L. Gammon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A118101Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average dermatopathology physician in 2024
57 Medicare Part D claims for 29 beneficiaries, against an average of 693 among the 249 providers of this specialty who prescribed in Part D.
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $60.44
2 payments; by number, the most common kind was food and beverage; the largest payer was Alafair Biosciences, Inc. The 233 providers of this specialty with any payment received $2,984.42 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.
Bills Medicare through 2 group practices
- Hal M Weitzbuch MD Medical CorporationCalabasas, CA
- Sagis PLLCHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bryan L. Gammon among 64 dermatopathology physician records in California
Bryan L. Gammon, M.D. is one of 64 dermatopathology physician records with a practice address in California. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 72% of them.
- NPI issued2008 · 72% of these records are older, 20% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2008 · median 1995 among the 44 with a school on file
- Record last updated2026 · 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 207ND0900X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatopathology Physician providers in California
There are 64 dermatopathology physician records in California.
All 64 in California → Every provider in San Jose → Dermatopathology Physician nationwide →
The 8 dermatopathology physician records with the nearest ZIP codes
- Robert Lee, MD, PHDSanta Rosa, CA 954031346300274
- Kwame Denianke, MDOakland, CA 946111710039938
- Leslie Hilger, MDOakland, CA 946091902901226
- Marvin Engel, MDWalnut Creek, CA 945981902804289
- Ernest Bloom, MDAlameda, CA 945011306941620
- Keira Barr, MDSacramento, CA 958161346218054
- Maxwell Fung, MDSacramento, CA 958161134178973
- Maija Kiuru, MD/PHDSacramento, CA 958161417117417
Common questions
What is Bryan L. Gammon, M.D.'s NPI number?
Bryan L. Gammon, M.D.'s National Provider Identifier (NPI) is 1518134154, issued on May 13, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Bryan L. Gammon, M.D. located?
The NPPES record lists a practice address at 2420 Samaritan Dr, San Jose, CA, 95124. Phone: (408) 369-5600. Providers update this record themselves, so call before visiting.
How can I verify Bryan L. Gammon, M.D.'s license?
NPPES lists California license number A118101, 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 Bryan L. Gammon, M.D. prescribe under Medicare Part D?
In 2024, Bryan L. Gammon, M.D. had 57 Medicare Part D claims for 29 beneficiaries; the average among dermatopathology physician prescribers was 693. Part D covers Medicare prescriptions only.
What is Bryan L. Gammon, M.D.'s MIPS final score?
The 2023 MIPS final score is 77.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.