Lewis Genuth, MD
Gastroenterology Physician · Brooklyn, NY
Lewis Genuth, MD is a gastroenterology physician with a practice address in Brooklyn, New York, and NPI 1588605588, issued on Jun 9, 2006. Check the license (New York 1652232, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Lewis Genuth
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 1652232 NY
Self-reported in NPPES; status is on the state search - Practice location
- 447 Atlantic Ave, Brooklyn, NY 11217
- Phone
- (718) 858-6300
- Enumerated
- Jun 9, 2006
- Record last updated
- Oct 20, 2025
- Fax
- (718) 858-0145
- Medicare enrollment
- Enrolled (PECOS I20040929000456); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 1984
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →
Also registered at 447 Atlantic Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Adewumi Adekunle, MDInternal Medicine Physician1740778968
- Patricia Anthony-Yearwood, F.N.P.Family Nurse Practitioner1669602363
- Jaime Arnau, PAMedical Physician Assistant1134328875
- Ruby Barclay, ANPAdult Health Nurse Practitioner1124371521
- Tatiana Berlianshik, NPFamily Nurse Practitioner1629846654
- Nadia Burnazi, D.O.Family Medicine Physician1487911715
Verify Lewis Genuth 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 1652232Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average gastroenterology physician in 2024
380 Medicare Part D claims for 158 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Omeprazole46 claims
- Famotidine43 claims
- Pantoprazole Sodium40 claims
- Peg 3350-Electrolyte31 claims
- Mesalamine28 claims
- Hydrocortisone20 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.
Bills Medicare through one group practice
- Advantagecare Physicians PCBrooklyn, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lewis Genuth among 1,797 gastroenterology physician records in New York
Lewis Genuth, 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
- Graduated1984 · median 1999 among the 1,378 with a school on file
- Record last updated2025 · 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
- Ofem Ajah, MDBrooklyn, NY 112171366469918
- Purna Chandra Prasad Atluri, M.D.Brooklyn, NY 112171972578490
- Asrael Bamberger, MDBrooklyn, NY 112171881643054
- Dennis Demeria, M.D.Brooklyn, NY 112171356717599
- Jagdish Gupta, M.D.Brooklyn, NY 112171083788400
- Leon Kurtz, M.D.Brooklyn, NY 112171447217302
- William Erber, M.D.Brooklyn, NY 112181588661052
- Jonathan Erber, MDBrooklyn, NY 112181730386657
Common questions
What is Lewis Genuth, MD's NPI number?
Lewis Genuth, MD's National Provider Identifier (NPI) is 1588605588, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lewis Genuth, MD located?
The NPPES record lists a practice address at 447 Atlantic Ave, Brooklyn, NY, 11217. Phone: (718) 858-6300. Providers update this record themselves, so call before visiting.
How can I verify Lewis Genuth, MD's license?
NPPES lists New York license number 1652232, 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 Lewis Genuth, MD prescribe under Medicare Part D?
In 2024, Lewis Genuth, MD had 380 Medicare Part D claims for 158 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.