Seth Eisen, M.D.
Internal Medicine Physician · Massapequa, NY
Seth Eisen, M.D. is an internal medicine physician with a practice address in Massapequa, New York, and NPI 1841351947, issued on Dec 12, 2006. Check the license (New York 143891, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Seth Eisen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 143891 NY
Self-reported in NPPES; status is on the state search - Practice location
- 510 Hicksville RD, Massapequa, NY 11758
- Phone
- (516) 795-2626
- Enumerated
- Dec 12, 2006
- Record last updated
- Aug 26, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (516) 799-7451
- Medicaid ID
- 00797782 NY
- Entity
- Type 1 · individual
Also registered at 510 Hicksville RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Luis Alejo, MDPhysical Medicine & Rehabilitation Physician1912963240
- Greg BlairCardiovascular Disease Physician1205084332
- Joseph Colucci, M.D.Internal Medicine Physician1770506164
- Frances Dooley, ANPAdult Health Nurse Practitioner1275694390
- Thomas Joseph, D.O.Cardiovascular Disease Physician1205900222
- Roger Kersten, D.O.Cardiovascular Disease Physician1003977125
Verify Seth Eisen 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 143891Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
16 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
24 internal medicine physician records list a practice address in Massapequa
They are 24 of the 1,195 NPPES records with a practice address in Massapequa, and 12,067 internal medicine physician records in New York.
All 24 in Massapequa → All 12,067 in New York → Every provider in Massapequa →
Other internal medicine physician records in New York
- Deborah Aanonsen, D.O.Staten Island, NY1952395717
- Nivedita Aanur, M.D.New York, NY1982833471
- Jay Aaron, MDGreat Neck, NY1245332956
- Ahmad AbadiPoughkeepsie, NY1780258517
- Jamsheed Abadi, MDBrooklyn, NY1477537496
- Antonieta Abarientos, MDNew Rochelle, NY1649285123
- Zurab Abayev, M.D.Brooklyn, NY1841283058
- Ehab Abaza, MDNew York, NY1114507555
- Vaidarshi Abbagoni, MDNew York, NY1871237495
- Muhammad AbbasRichmond Hill, NY1053996587
Common questions
What is Seth Eisen, M.D.'s NPI number?
Seth Eisen, M.D.'s National Provider Identifier (NPI) is 1841351947, issued on Dec 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Seth Eisen, M.D. located?
The NPPES record lists a practice address at 510 Hicksville RD, Massapequa, NY, 11758. Phone: (516) 795-2626. Providers update this record themselves, so call before visiting.
How can I verify Seth Eisen, M.D.'s license?
NPPES lists New York license number 143891, 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 Seth Eisen, M.D. prescribe under Medicare Part D?
In 2024, Seth Eisen, M.D. had 16 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.