John A. Ostuni, MD
Internal Medicine Physician · Freeport, NY
John A. Ostuni, MD is an internal medicine physician with a practice address in Freeport, New York, and NPI 1811985153, issued on Oct 11, 2005. Check the license (New York 112891, as entered in NPPES) on the NYS Education Department, Office of the Professions; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John A. Ostuni
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 112891 NY
Self-reported in NPPES; status is on the state search - Practice location
- 155 W Merrick RD, Freeport, NY 11520
- Phone
- (516) 379-3139
- Enumerated
- Oct 11, 2005
- Record last updated
- Apr 15, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (516) 379-5790
- Medicaid ID
- 00401794 NY
- Entity
- Type 1 · individual
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Verify John A. Ostuni 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 112891Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John A. Ostuni among 12,067 internal medicine physician records in New York
John A. Ostuni, 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 not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2008 · 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).
11 internal medicine physician records list a practice address in Freeport
They are 11 of the 679 NPPES records with a practice address in Freeport, and 12,067 internal medicine physician records in New York. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 12,067 in New York → Every provider in Freeport → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Muhammad Ali, MDFreeport, NY 115201346221264
- Gina Caso, MDFreeport, NY 115201720076060
- Peter Chak, MDFreeport, NY 115201316928617
- Jacqueline Delmont, M.D.Freeport, NY 115201144210196
- David Grill, MDFreeport, NY 115201316936826
- Scott Rankin, M.D.Freeport, NY 115201740208933
- Atif ShahFreeport, NY 115201598627366
- Michael Smar, MDFreeport, NY 115201457349706
Common questions
What is John A. Ostuni, MD's NPI number?
John A. Ostuni, MD's National Provider Identifier (NPI) is 1811985153, issued on Oct 11, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John A. Ostuni, MD located?
The NPPES record lists a practice address at 155 W Merrick RD, Freeport, NY, 11520. Phone: (516) 379-3139. Providers update this record themselves, so call before visiting.
How can I verify John A. Ostuni, MD's license?
NPPES lists New York license number 112891, 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. 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.