Thomas Y. Ma, M.D.
Gastroenterology Physician · Hershey, PA
Thomas Y. Ma, M.D. is a gastroenterology physician with a practice address in Hershey, Pennsylvania, and NPI 1902813967, issued on Aug 2, 2006. Check the license (Pennsylvania MD463138, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Thomas Y. Ma
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- MD463138 PA
2002-0066 NM
Self-reported in NPPES; status is on the state search - Practice location
- 500 University Dr, Hershey, PA 17033
- Phone
- (800) 243-1455
- Enumerated
- Aug 2, 2006
- Record last updated
- Apr 19, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (717) 531-6770
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,049 in Pennsylvania → Look up another NPI →
Also registered at 500 University Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Fatemeh Abbasi, MDPulmonary Disease Physician1750878625
- Andrea Abbe, LDNRegistered Dietitian1366623795
- Mahdi Abdallah, MDStudent in an Organized Health Care Education/Training Program1497457360
- Ashraf Abdelhalim, MDAnesthesiology Physician1356931729
Verify Thomas Y. Ma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD463138Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $115.99
1 payment: food and beverage; the largest payer was Janssen Scientific Affairs, LLC. 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.
Thomas Y. Ma among 1,049 gastroenterology physician records in Pennsylvania
Thomas Y. Ma, M.D. is one of 1,049 gastroenterology physician records with a practice address in Pennsylvania. 85% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 47% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 73% of these records are
- Record last updated2018 · 63% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
35 gastroenterology physician records list a practice address in Hershey
They are 35 of the 3,972 NPPES records with a practice address in Hershey, and 1,049 gastroenterology physician records in Pennsylvania.
All 1,049 in Pennsylvania → Every provider in Hershey → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Deborah Bethards, M.D.Hershey, PA 170331659306561
- Wilmot Burch, M.D.Hershey, PA 170331700813276
- Kofi Clarke, M.D.Hershey, PA 170331841254851
- Brian Dodson, M.D.Hershey, PA 170331710905823
- Nicholas Inverso, M.D.Hershey, PA 170331396704086
- Abraham Mathew, MDHershey, PA 170331851349443
- Thomas McGarrity, MDHershey, PA 170331316995996
- Ann Ouyang, MDHershey, PA 170331104884238
Common questions
What is Thomas Y. Ma, M.D.'s NPI number?
Thomas Y. Ma, M.D.'s National Provider Identifier (NPI) is 1902813967, issued on Aug 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Y. Ma, M.D. located?
The NPPES record lists a practice address at 500 University Dr, Hershey, PA, 17033. Phone: (800) 243-1455. Providers update this record themselves, so call before visiting.
How can I verify Thomas Y. Ma, M.D.'s license?
NPPES lists Pennsylvania license number MD463138, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.