Jan J. Shim, M.D.
Gastroenterology Physician · New York, NY
Jan J. Shim, M.D. is a gastroenterology physician with a practice address in New York, New York, and NPI 1265417299, issued on Dec 13, 2005. Check the license (New York 191275, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Jan J. Shim
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 191275 NY
25MA06650200 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 4 East 88TH Street, New York, NY 10128
- Phone
- (212) 535-5020
- Enumerated
- Dec 13, 2005
- Record last updated
- Apr 24, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080212000087); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →
Verify Jan J. Shim 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 191275Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average gastroenterology physician in 2024
257 Medicare Part D claims for 173 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf132 claims
- Pantoprazole Sodium20 claims
- Vemlidy20 claims
- Tenofovir Disoproxil Fumarate15 claims
- Omeprazole12 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): 97.5 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).
Industry payments in 2024: $288.81
8 payments; by number, the most common kind was food and beverage; the largest payer was Thd America, 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 2 group practices
- Allied Digestive Health LLCEnglewood Cliffs, NJ
- Gastrointestinal Care OF Long Island PLLCGreat Neck, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jan J. Shim among 1,797 gastroenterology physician records in New York
Jan J. Shim, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1991 · median 1999 among the 1,378 with a school on file
- Record last updated2017 · 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 New York → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Cordia Beverley, M.D.New York, NY 101281467594903
- Steven Finkelstein, M.D.New York, NY 101281790749133
- James George, MDNew York, NY 101281659380244
- Mark Gromisch, M.D.New York, NY 101281619092855
- Arthur Kornbluth, MDNew York, NY 101281104835784
- Arnon Lambroza, MDNew York, NY 101281760562656
- Peter Legnani, MDNew York, NY 101281942219548
- Blair Lewis, M.D.New York, NY 101281689765521
Common questions
What is Jan J. Shim, M.D.'s NPI number?
Jan J. Shim, M.D.'s National Provider Identifier (NPI) is 1265417299, issued on Dec 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jan J. Shim, M.D. located?
The NPPES record lists a practice address at 4 East 88TH Street, New York, NY, 10128. Phone: (212) 535-5020. Providers update this record themselves, so call before visiting.
How can I verify Jan J. Shim, M.D.'s license?
NPPES lists New York license number 191275, 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 Jan J. Shim, M.D. prescribe under Medicare Part D?
In 2024, Jan J. Shim, M.D. had 257 Medicare Part D claims for 173 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Jan J. Shim, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.5 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.