Thomas A. Ullman, M.D.
Gastroenterology Physician · Scarsdale, NY
Thomas A. Ullman, M.D. is a gastroenterology physician with a practice address in Scarsdale, New York, and NPI 1447281944, issued on Jul 5, 2006. Check the license (New York 197786, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Thomas A. Ullman
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 197786 NY
Self-reported in NPPES; status is on the state search - Practice location
- 341 Central Park Ave, Scarsdale, NY 10583
- Phone
- (914) 370-5000
- Enumerated
- Jul 5, 2006
- Record last updated
- Dec 23, 2024
- Fax
- (914) 631-0094
- Medicare enrollment
- Enrolled (PECOS I20040708001334); accepts Medicare assignment
- Medical or professional school
- Js Weill Medical College, Cornell University, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →
Also registered at 341 Central Park Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kelly DiazGastroenterology Physician1740712017
- April HarrisFamily Nurse Practitioner1699539072
- Amanda KadamthottuFamily Nurse Practitioner1467386847
- Maryana KotynkevychPodiatrist1962964445
- Arshia Nishat, MDFamily Medicine Physician1942645924
- Barbara SchirripaFamily Nurse Practitioner1558095463
Verify Thomas A. Ullman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 197786Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% fewer Medicare Part D claims than the average gastroenterology physician in 2024
683 Medicare Part D claims for 163 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Mesalamine79 claims
- Gavilyte-G54 claims
- Entyvio50 claims
- Omeprazole39 claims
- Stelara27 claims
- Xifaxan27 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: $58,807.95
80 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, 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
- Mount Sinai School OF Medicine OF New York UniversityScarsdale, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas A. Ullman among 1,797 gastroenterology physician records in New York
Thomas A. Ullman, M.D. is one of 1,797 gastroenterology physician records with a practice address in New York. 88% 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 15% of them.
- NPI issued2006 · 15% of these records are older, 44% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1992 · median 1999 among the 1,378 with a school on file
- Record last updated2024 · 65% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 gastroenterology physician records list a practice address in Scarsdale
They are 11 of the 1,028 NPPES records with a practice address in Scarsdale, and 1,797 gastroenterology physician records in New York.
All 1,797 in New York → Every provider in Scarsdale → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Arthur Berman, MDScarsdale, NY 105831013911932
- Stephen Brenner, MDScarsdale, NY 105831245234202
- Kelly DiazScarsdale, NY 105831740712017
- James Dilorenzo, M.D.Scarsdale, NY 105831720036833
- Robert Fath, M.D.Scarsdale, NY 105831083712772
- Joseph Mermelstein, MDScarsdale, NY 105831689963662
- Malcolm Schoen, M.D.Scarsdale, NY 105831013933076
- Peter Slotwiner-Nie, M.D.Scarsdale, NY 105831508812405
Common questions
What is Thomas A. Ullman, M.D.'s NPI number?
Thomas A. Ullman, M.D.'s National Provider Identifier (NPI) is 1447281944, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas A. Ullman, M.D. located?
The NPPES record lists a practice address at 341 Central Park Ave, Scarsdale, NY, 10583. Phone: (914) 370-5000. Providers update this record themselves, so call before visiting.
How can I verify Thomas A. Ullman, M.D.'s license?
NPPES lists New York license number 197786, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas A. Ullman, M.D. prescribe under Medicare Part D?
In 2024, Thomas A. Ullman, M.D. had 683 Medicare Part D claims for 163 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.