Waseem Ahmad, M.D.
Gastroenterology Physician · San Francisco, CA
Waseem Ahmad, M.D. is a gastroenterology physician with a practice address in San Francisco, California, and NPI 1649633991, issued on Apr 4, 2016. Check the license (California A152851, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Waseem Ahmad
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A152851 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1701 Divisadero St RM 120, San Francisco, CA 94115
- Phone
- (415) 502-4444
- Enumerated
- Apr 4, 2016
- Record last updated
- Jan 6, 2026
- Fax
- (415) 502-2249
- Medicare enrollment
- Enrolled (PECOS I20220824002411); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Verify Waseem Ahmad in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A152851Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average gastroenterology physician in 2024
141 Medicare Part D claims for 64 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Omeprazole24 claims
- Famotidine23 claims
- Mirtazapine17 claims
- Xifaxan12 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 2 group practices
- Regents OF The University OF CaliforniaSan Francisco, CA
- Ucsf Medical Group Business ServicesBurlingame, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Waseem Ahmad among 2,140 gastroenterology physician records in California
Waseem Ahmad, 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 2016, is newer than 88% of them.
- NPI issued2016 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2016 · median 2002 among the 1,538 with a school on file
- Record last updated2026 · 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 Waseem Ahmad, M.D.'s NPI number?
Waseem Ahmad, M.D.'s National Provider Identifier (NPI) is 1649633991, issued on Apr 4, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Waseem Ahmad, M.D. located?
The NPPES record lists a practice address at 1701 Divisadero St RM 120, San Francisco, CA, 94115. Phone: (415) 502-4444. Providers update this record themselves, so call before visiting.
How can I verify Waseem Ahmad, M.D.'s license?
NPPES lists California license number A152851, 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 Waseem Ahmad, M.D. prescribe under Medicare Part D?
In 2024, Waseem Ahmad, M.D. had 141 Medicare Part D claims for 64 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.