Jonathan Zachary Potack, M.D.
Gastroenterology Physician · New York, NY
Jonathan Zachary Potack, M.D. is a gastroenterology physician with a practice address in New York, New York, and NPI 1518004993, issued on Feb 1, 2007. Check the license (New York 228954, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Jonathan Zachary Potack
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 228954 NY
Self-reported in NPPES; status is on the state search - Practice location
- 5 E 98TH St, New York, NY 10029
- Phone
- (212) 241-4299
- Enumerated
- Feb 1, 2007
- Record last updated
- May 5, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (212) 426-5099
- Medicare enrollment
- Enrolled (PECOS I20080514000592); accepts Medicare assignment
- Medical or professional school
- Icahn School Of Medicine At Mount Sinai, 2002
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →
Also registered at 5 E 98TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Noura Abul-Husn, M.D., PH.D.Clinical Genetics (M.D.) Physician1598907438
- Briana Adler, MS RD CDN CDERegistered Dietitian1033641733
- Manasi Agrawal, MDGastroenterology Physician1639488430
- Jawad Ahmad, MDHepatology Physician1104898311
- Sarah Ahn, DCChiropractor1023717261
- Anna Akerstedt, PH.D.Clinical Psychologist1831344829
Verify Jonathan Zachary Potack 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 228954Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Westchester Medical Center Advanced Physician Services PCHawthorne, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathan Zachary Potack among 1,797 gastroenterology physician records in New York
Jonathan Zachary Potack, 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 2007, is newer than 56% of them.
- NPI issued2007 · 56% of these records are older, 38% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2002 · median 1999 among the 1,378 with a school on file
- Record last updated2008 · 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
- Efsevia Albanis, MDNew York, NY 100291346268174
- Charissa Chang, MDNew York, NY 100291649299686
- Lawrence Cohen, M.D.New York, NY 100291023010956
- Scott Friedman, MDNew York, NY 100291184656209
- Steven Itzkowitz, MDNew York, NY 100291568499036
- Michelle Kim, MDNew York, NY 100291851319651
- Eric Lemmer, MDNew York, NY 100291760412274
- Patricia Lopez, MDNew York, NY 100291275551004
Common questions
What is Jonathan Zachary Potack, M.D.'s NPI number?
Jonathan Zachary Potack, M.D.'s National Provider Identifier (NPI) is 1518004993, issued on Feb 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Zachary Potack, M.D. located?
The NPPES record lists a practice address at 5 E 98TH St, New York, NY, 10029. Phone: (212) 241-4299. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Zachary Potack, M.D.'s license?
NPPES lists New York license number 228954, 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.
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.