Steven David Ma, MD
Gastroenterology Physician · San Diego, CA
Steven David Ma, MD is a gastroenterology physician with a practice address in San Diego, California, and NPI 1730715715, issued on Mar 21, 2020. Check the license (California A206312, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Steven David Ma
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A206312 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2929 Health Center Dr, San Diego, CA 92123
- Phone
- (858) 499-2600
- Enumerated
- Mar 21, 2020
- Record last updated
- Jun 8, 2026
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 2929 Health Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Steven David Ma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A206312Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average gastroenterology physician in 2024
21 Medicare Part D claims, against an average of 811 among the 16,445 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.
Industry payments in 2024: $139.99
1 payment: food and beverage; the largest payer was Ipsen Biopharmaceuticals, 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.
Steven David Ma among 2,140 gastroenterology physician records in California
Steven David Ma, 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 2020, is newer than 98% of them.
- NPI issued2020 · 98% of these records are older, 1% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- 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 Diego → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Michael Bennett, MDSan Diego, CA 921231700895927
- Susan Chu, M.D.San Diego, CA 921231033127162
- Sergio Flores, MDSan Diego, CA 921231588674022
- R Johnson, M.D.San Diego, CA 921231548272446
- Darren Keller, M.D.San Diego, CA 921231013988922
- Hyun Kim, MDSan Diego, CA 921231013023365
- Daniel Lee, M.D.San Diego, CA 921231063522613
- John Person, M.D.San Diego, CA 921231285647297
Common questions
What is Steven David Ma, MD's NPI number?
Steven David Ma, MD's National Provider Identifier (NPI) is 1730715715, issued on Mar 21, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Steven David Ma, MD located?
The NPPES record lists a practice address at 2929 Health Center Dr, San Diego, CA, 92123. Phone: (858) 499-2600. Providers update this record themselves, so call before visiting.
How can I verify Steven David Ma, MD's license?
NPPES lists California license number A206312, 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 Steven David Ma, MD prescribe under Medicare Part D?
In 2024, Steven David Ma, MD had 21 Medicare Part D claims; 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.