Mary Elizabeth Revilla Clark, M.D.
Gastroenterology Physician · San Francisco, CA
Mary Elizabeth Revilla Clark, M.D. is a gastroenterology physician with a practice address in San Francisco, California, and NPI 1225109770, issued on Nov 13, 2006. Check the license (California A98304, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mary Elizabeth Revilla Clark
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A98304 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2333 Buchanan St, San Francisco, CA 94115
- Phone
- (415) 644-5752
- Enumerated
- Nov 13, 2006
- Record last updated
- Jan 13, 2022
- Medicare enrollment
- Enrolled (PECOS I20101029000328); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 2333 Buchanan St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Elizabeth Revilla Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A98304Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% more Medicare Part D claims than the average gastroenterology physician in 2024
845 Medicare Part D claims for 378 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Gavilyte-C241 claims
- Omeprazole81 claims
- Pantoprazole Sodium65 claims
- Famotidine32 claims
- Esomeprazole Magnesium31 claims
- Motegrity27 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.
Industry payments in 2024: $43.06
2 payments; by number, the most common kind was food and beverage; the largest payer was CapsoVision, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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 one group practice
- Permanente Medical Group IncAntioch, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Elizabeth Revilla Clark among 2,140 gastroenterology physician records in California
Mary Elizabeth Revilla Clark, M.D. is one of 2,140 gastroenterology physician records with a practice address in California. 83% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 48% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2001 · median 2002 among the 1,538 with a school on file
- Record last updated2022 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in San Francisco → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Douglas Corley, MDSan Francisco, CA 941151598843138
- Edward Doo, MDSan Francisco, CA 941151295837243
- Yao Heng, MDSan Francisco, CA 941151225116825
- Steven Jacobsohn, M.D.San Francisco, CA 941151639104151
- Wolfgang Korn, MDSan Francisco, CA 941151235187055
- Uma Mahadevan, MDSan Francisco, CA 941151851355283
- Jane Melnick, MDSan Francisco, CA 941151124049879
- Aristotle Mendiola, M.D.San Francisco, CA 941151871518266
Common questions
What is Mary Elizabeth Revilla Clark, M.D.'s NPI number?
Mary Elizabeth Revilla Clark, M.D.'s National Provider Identifier (NPI) is 1225109770, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary Elizabeth Revilla Clark, M.D. located?
The NPPES record lists a practice address at 2333 Buchanan St, San Francisco, CA, 94115. Phone: (415) 644-5752. Providers update this record themselves, so call before visiting.
How can I verify Mary Elizabeth Revilla Clark, M.D.'s license?
NPPES lists California license number A98304, 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 Elizabeth Revilla Clark, M.D. prescribe under Medicare Part D?
In 2024, Mary Elizabeth Revilla Clark, M.D. had 845 Medicare Part D claims for 378 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.