Aaron E. Walfish, MD
Gastroenterology Physician · New York, NY
Aaron E. Walfish, MD is a gastroenterology physician with a practice address in New York, New York, and NPI 1982659181, issued on May 24, 2006. Check the license (New York 222732, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Aaron E. Walfish
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 222732 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1150 Park Ave, New York, NY 10128
- Phone
- (212) 831-5000
- Enumerated
- May 24, 2006
- Record last updated
- Feb 15, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (646) 530-8352
- Medicare enrollment
- Enrolled (PECOS I20060620000213); accepts Medicare assignment
- Medical or professional school
- Icahn School Of Medicine At Mount Sinai, 2000
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →
Also registered at 1150 Park Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Aaron E. Walfish 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 222732Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average gastroenterology physician in 2024
139 Medicare Part D claims for 71 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Gavilyte-G21 claims
- Pantoprazole Sodium17 claims
- Famotidine16 claims
- Linzess15 claims
- Omeprazole11 claims
- Peg-3350 And Electrolytes11 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: $440.58
4 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme 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.
Bills Medicare through one group practice
- Icahn School OF Medicine AT Mount SinaiElmhurst, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Aaron E. Walfish among 1,797 gastroenterology physician records in New York
Aaron E. Walfish, 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
- Graduated2000 · median 1999 among the 1,378 with a school on file
- Record last updated2018 · 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 Aaron E. Walfish, MD's NPI number?
Aaron E. Walfish, MD's National Provider Identifier (NPI) is 1982659181, issued on May 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Aaron E. Walfish, MD located?
The NPPES record lists a practice address at 1150 Park Ave, New York, NY, 10128. Phone: (212) 831-5000. Providers update this record themselves, so call before visiting.
How can I verify Aaron E. Walfish, MD's license?
NPPES lists New York license number 222732, 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 Aaron E. Walfish, MD prescribe under Medicare Part D?
In 2024, Aaron E. Walfish, MD had 139 Medicare Part D claims for 71 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.