Ady S. Oster, MD
Internal Medicine Physician · New York, NY
Ady S. Oster, MD is an internal medicine physician with a practice address in New York, New York, and NPI 1720013220, issued on Jul 12, 2006. Check the license (New York 225145, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Ady S. Oster
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 225145 NY
Self-reported in NPPES; status is on the state search - Practice location
- 268 Canal St, New York, NY 10013
- Phone
- (212) 379-6998
- Enumerated
- Jul 12, 2006
- Record last updated
- Oct 23, 2025
- Fax
- (212) 379-6935
- Medicaid ID
- 02299681 NY
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 268 Canal St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ady S. Oster 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 225145Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average internal medicine physician in 2024
874 Medicare Part D claims for 152 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Atorvastatin Calcium68 claims
- Losartan Potassium46 claims
- Amlodipine Besylate44 claims
- Diclofenac Sodium36 claims
- Jardiance36 claims
- Metformin Hcl33 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.
Ady S. Oster among 12,067 internal medicine physician records in New York
Ady S. Oster, 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2025 · 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).
2,434 internal medicine physician records list a practice address in New York
They are 2,434 of the 98,468 NPPES records with a practice address in New York, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in New York → Internal Medicine Physician nationwide →
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Common questions
What is Ady S. Oster, MD's NPI number?
Ady S. Oster, MD's National Provider Identifier (NPI) is 1720013220, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ady S. Oster, MD located?
The NPPES record lists a practice address at 268 Canal St, New York, NY, 10013. Phone: (212) 379-6998. Providers update this record themselves, so call before visiting.
How can I verify Ady S. Oster, MD's license?
NPPES lists New York license number 225145, 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 Ady S. Oster, MD prescribe under Medicare Part D?
In 2024, Ady S. Oster, MD had 874 Medicare Part D claims for 152 beneficiaries; 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.