Marcia Leung, MD
Gastroenterology Physician · San Francisco, CA
Marcia Leung, MD is a gastroenterology physician with a practice address in San Francisco, California, and NPI 1730684648, issued on Mar 24, 2018. Check the license (California 164648, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marcia Leung
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 164648 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2425 Geary Blvd, San Francisco, CA 94115
- Phone
- (415) 833-3514
- Enumerated
- Mar 24, 2018
- Record last updated
- Oct 21, 2022
- Fax
- (617) 632-0215
- Medicare enrollment
- Enrolled (PECOS I20250825002693); accepts Medicare assignment
- Medical or professional school
- University Of Hawaii John A. Burns School Of Medicine, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 2425 Geary Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jorge Abaunza, PHARM D.Pharmacist1457400046
- Laura Abbott, M.D.Student in an Organized Health Care Education/Training Program1093071367
- Brian Ablang, P.T.Physical Therapist1609931054
- Arash AgharahmanianStudent in an Organized Health Care Education/Training Program1366237240
- Mia AldridgeStudent in an Organized Health Care Education/Training Program1437890761
- Catherine Grace Alejo, NPFamily Nurse Practitioner1932273521
Verify Marcia Leung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 164648Check 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 gastroenterology physician in 2024
66 Medicare Part D claims for 28 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Omeprazole26 claims
- Pantoprazole Sodium11 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: $192.30
2 payments; by number, the most common kind was food and beverage; the largest payer was Erbe USA 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.
One hospital affiliation
- The Queens Medical CenterHonolulu, HI · Acute Care Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Marcia Leung among 2,140 gastroenterology physician records in California
Marcia Leung, MD 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 2018, is newer than 94% of them.
- NPI issued2018 · 94% of these records are older, 4% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2018 · 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 Marcia Leung, MD's NPI number?
Marcia Leung, MD's National Provider Identifier (NPI) is 1730684648, issued on Mar 24, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Marcia Leung, MD located?
The NPPES record lists a practice address at 2425 Geary Blvd, San Francisco, CA, 94115. Phone: (415) 833-3514. Providers update this record themselves, so call before visiting.
How can I verify Marcia Leung, MD's license?
NPPES lists California license number 164648, 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 Marcia Leung, MD prescribe under Medicare Part D?
In 2024, Marcia Leung, MD had 66 Medicare Part D claims for 28 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.