Mary B. Gauthier, M.D.
Family Medicine Physician · Richmond, CA
Mary B. Gauthier, M.D. is a family medicine physician with a practice address in Richmond, California, and NPI 1487823936, issued on Feb 28, 2008. Check the license (California A113249, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mary B. Gauthier
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- A113249 CA
MT185080 PA
Self-reported in NPPES; status is on the state search - Practice location
- 901 Nevin Ave, Richmond, CA 94801
- Phone
- (510) 307-1555
- Enumerated
- Feb 28, 2008
- Record last updated
- Jul 2, 2023
- Medicare enrollment
- Enrolled (PECOS I20110728000151); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 901 Nevin Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary B. Gauthier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A113249Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average family medicine physician in 2024
2,757 Medicare Part D claims for 463 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 131 claims were for opioids.
Most prescribed
- Atorvastatin Calcium181 claims
- Amlodipine Besylate145 claims
- Famotidine104 claims
- Lisinopril98 claims
- Albuterol Sulfate Hfa95 claims
- Levothyroxine Sodium68 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.
Bills Medicare through one group practice
- Permanente Medical Group IncRichmond, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary B. Gauthier among 17,133 family medicine physician records in California
Mary B. Gauthier, M.D. 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 2008, is newer than 53% of them.
- NPI issued2008 · 53% of these records are older, 42% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2003 · median 2005 among the 10,652 with a school on file
- Record last updated2023 · 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).
27 family medicine physician records list a practice address in Richmond
They are 27 of the 1,696 NPPES records with a practice address in Richmond, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Richmond → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Justin Chin, DORichmond, CA 948011699399006
- Rebecca Citron, MDRichmond, CA 948011730613142
- Earl Clark, MDRichmond, CA 948011104387174
- Jan Diamond, MDRichmond, CA 948011326116898
- Daniel Hans, D.O.Richmond, CA 948011881081065
- Kristina Heller, D.O.Richmond, CA 948011780046987
- Ki Kim, D.O.Richmond, CA 948011548556665
- Gregory Lee, M.D.Richmond, CA 948011649255282
Common questions
What is Mary B. Gauthier, M.D.'s NPI number?
Mary B. Gauthier, M.D.'s National Provider Identifier (NPI) is 1487823936, issued on Feb 28, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Mary B. Gauthier, M.D. located?
The NPPES record lists a practice address at 901 Nevin Ave, Richmond, CA, 94801. Phone: (510) 307-1555. Providers update this record themselves, so call before visiting.
How can I verify Mary B. Gauthier, M.D.'s license?
NPPES lists California license number A113249, 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 Mary B. Gauthier, M.D. prescribe under Medicare Part D?
In 2024, Mary B. Gauthier, M.D. had 2,757 Medicare Part D claims for 463 beneficiaries; 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.