Yonael Ayinalem, MD
Internal Medicine Physician · West Islip, NY
Yonael Ayinalem, MD is an internal medicine physician with a practice address in West Islip, New York, and NPI 1932857901, issued on Mar 17, 2022. Check the license (New York 337759-01, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Yonael Ayinalem
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 337759-01 NY
A209346 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Montauk Hwy, West Islip, NY 11795
- Phone
- (631) 376-3000
- Enumerated
- Mar 17, 2022
- Record last updated
- Aug 5, 2026
- Medicare enrollment
- Enrolled (PECOS I20250804002812); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 1000 Montauk Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Yonael Ayinalem 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 337759-01Check 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
- Southwest Suffolk Medical PCWest Islip, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Yonael Ayinalem among 12,067 internal medicine physician records in New York
Yonael Ayinalem, MD is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 94% of them.
- NPI issued2022 · 94% of these records are older, 4% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2022 · median 2002 among the 7,221 with a school on file
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 internal medicine physician records list a practice address in West Islip
They are 23 of the 1,107 NPPES records with a practice address in West Islip, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in West Islip → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sumeet Anand, MDWest Islip, NY 117951902896764
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- Michael Gewirtz, MDWest Islip, NY 117951093739534
- Stuart Greenberg, M.D.West Islip, NY 117951043244130
- Thomas Hall, MDWest Islip, NY 117951356365803
- Abu Muhammad Haque, MDWest Islip, NY 117951588658512
- Gabriel Leonte, MDWest Islip, NY 117951144225350
- Anser Lone, M.D.West Islip, NY 117951407851637
Common questions
What is Yonael Ayinalem, MD's NPI number?
Yonael Ayinalem, MD's National Provider Identifier (NPI) is 1932857901, issued on Mar 17, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Yonael Ayinalem, MD located?
The NPPES record lists a practice address at 1000 Montauk Hwy, West Islip, NY, 11795. Phone: (631) 376-3000. Providers update this record themselves, so call before visiting.
How can I verify Yonael Ayinalem, MD's license?
NPPES lists New York license number 337759-01, 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.