Leon Michael Kogan, M.D.
Gastroenterology Physician · Babylon, NY
Leon Michael Kogan, M.D. is a gastroenterology physician with a practice address in Babylon, New York, and NPI 1598916223, issued on Sep 30, 2008. Check the license (New York 240404, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Leon Michael Kogan
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 240404 NY
15962 NH
NJ 25MA09015600 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 400 W Main St Ste 300, Babylon, NY 11702
- Phone
- (631) 321-6400
- Enumerated
- Sep 30, 2008
- Record last updated
- Oct 25, 2024
- Fax
- (631) 321-2969
- Medicare enrollment
- Enrolled (PECOS I20090312000152); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →
Verify Leon Michael Kogan 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 240404Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% more Medicare Part D claims than the average gastroenterology physician in 2024
1,413 Medicare Part D claims for 505 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Famotidine477 claims
- Omeprazole196 claims
- Sod Sulf-Potass Sulf-Mag Sulf141 claims
- Pantoprazole Sodium97 claims
- Dicyclomine Hcl32 claims
- Suflave28 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: $824.87
42 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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 one group practice
- Chs Physician Partners PCBabylon, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leon Michael Kogan among 1,797 gastroenterology physician records in New York
Leon Michael Kogan, 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 2008, is newer than 62% of them.
- NPI issued2008 · 62% of these records are older, 31% 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 updated2024 · 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 Babylon → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Babak Danesh, MDBabylon, NY 117021306823786
- James Kohlroser, DOBabylon, NY 117021508884842
- Neeraj Anand, MDBay Shore, NY 117061386874329
- Jeffrey Ashkin, MDBay Shore, NY 117061972619823
- Paul Broomfield, MDBay Shore, NY 117061043323462
- Robert Chatalbash, MDBay Shore, NY 117061770696197
- Michael Delman, MDBay Shore, NY 117061902862907
- Aaron Harrison, MDBay Shore, NY 117061487767802
Common questions
What is Leon Michael Kogan, M.D.'s NPI number?
Leon Michael Kogan, M.D.'s National Provider Identifier (NPI) is 1598916223, issued on Sep 30, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Leon Michael Kogan, M.D. located?
The NPPES record lists a practice address at 400 W Main St Ste 300, Babylon, NY, 11702. Phone: (631) 321-6400. Providers update this record themselves, so call before visiting.
How can I verify Leon Michael Kogan, M.D.'s license?
NPPES lists New York license number 240404, 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 Leon Michael Kogan, M.D. prescribe under Medicare Part D?
In 2024, Leon Michael Kogan, M.D. had 1,413 Medicare Part D claims for 505 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.