Jeffrey Gamss, MD
Gastroenterology Physician · Brooklyn, NY
Jeffrey Gamss, MD is a gastroenterology physician with a practice address in Brooklyn, New York, and NPI 1780793943, issued on Aug 30, 2006. Check the license (New York 159808, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Jeffrey Gamss
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 159808 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1630 E 14TH St, Brooklyn, NY 11229
- Phone
- (718) 692-1198
- Enumerated
- Aug 30, 2006
- Record last updated
- Mar 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (718) 339-6923
- Medicaid ID
- 01048168 NY
- Medicare enrollment
- Enrolled (PECOS I20070823000601); accepts Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 1983
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →
Also registered at 1630 E 14TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Leticia Castro, NPAdult Health Nurse Practitioner1619604212
- Ji Soo Choi, NPAdult Health Nurse Practitioner1184214926
- Joseph Durzieh, M.D.Gastroenterology Physician1942271010
- Gary Gettenberg, M.D.Gastroenterology Physician1194795476
- Talya Herskowitz, PA-CMedical Physician Assistant1568857126
- Leora Twena, PAPhysician Assistant1881939205
Verify Jeffrey Gamss 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 159808Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average gastroenterology physician in 2024
591 Medicare Part D claims for 180 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
- Famotidine260 claims
- Omeprazole154 claims
- Linzess57 claims
- Pantoprazole Sodium48 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 84.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- New York UniversityNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jeffrey Gamss among 1,797 gastroenterology physician records in New York
Jeffrey Gamss, MD 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
- Graduated1983 · median 1999 among the 1,378 with a school on file
- Record last updated2021 · 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).
Gastroenterology Physician providers in New York
There are 1,797 gastroenterology physician records in New York.
All 1,797 in New York → Every provider in Brooklyn → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Joseph Durzieh, M.D.Brooklyn, NY 112291942271010
- Gary Gettenberg, M.D.Brooklyn, NY 112291194795476
- Inna Gordin, M.D.Brooklyn, NY 112291093866386
- Stephen Haddad, M.D.Brooklyn, NY 112291801844964
- Kadirawelpillai Iswara, MDBrooklyn, NY 112291265506828
- Oleg Katcher, MDBrooklyn, NY 112291598701468
- Alvin Leb, MDBrooklyn, NY 112291356358220
- Yuriy PertsovskyBrooklyn, NY 112291326085168
Common questions
What is Jeffrey Gamss, MD's NPI number?
Jeffrey Gamss, MD's National Provider Identifier (NPI) is 1780793943, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey Gamss, MD located?
The NPPES record lists a practice address at 1630 E 14TH St, Brooklyn, NY, 11229. Phone: (718) 692-1198. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey Gamss, MD's license?
NPPES lists New York license number 159808, 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 Jeffrey Gamss, MD prescribe under Medicare Part D?
In 2024, Jeffrey Gamss, MD had 591 Medicare Part D claims for 180 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Jeffrey Gamss, MD's MIPS final score?
The 2023 MIPS final score is 84.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.