Christine Ahn, MD
Emergency Medicine Physician · Stony Brook, NY
Christine Ahn, MD is an emergency medicine physician with a practice address in Stony Brook, New York, and NPI 1336307461, issued on May 27, 2008. Check the license (New York 257406, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Christine Ahn
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 257406 NY
Self-reported in NPPES; status is on the state search - Practice location
- Stony Brook University Hospital, Stony Brook, NY 11794
- Phone
- (631) 444-2478
- Enumerated
- May 27, 2008
- Entity
- Type 1 · individual
Also registered at Stony Brook University Hospital
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Christine Ahn 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 257406Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
96% fewer Medicare Part D claims than the average emergency medicine physician in 2024
15 Medicare Part D claims for 13 beneficiaries, against an average of 355 among the 49,029 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
98 emergency medicine physician records list a Stony Brook practice address
They are 98 of the 3,053 NPPES records with a Stony Brook practice address, and 4,480 emergency medicine physician records in New York.
All 98 in Stony Brook → All 4,480 in New York → Every provider in Stony Brook →
Other emergency medicine physician records in New York
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- Ethan Abbott, DOBronx, NY1619252202
- Frederick Abbuhl, MDAlbany, NY1831138882
- Minako Abe, MDNew York, NY1578635249
- Benjamin Abella, MDNew York, NY1568560746
- Josyann Abisaab, MDNew York, NY1538256623
- Amy Abraham, MDBronx, NY1407256878
- Gallane Abraham, MDBronx, NY1275859696
- Joel Abraham, D.O.New Hyde Park, NY1578815437
Common questions
What is Christine Ahn, MD's NPI number?
Christine Ahn, MD's National Provider Identifier (NPI) is 1336307461, issued on May 27, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Christine Ahn, MD located?
The NPPES record lists a practice address at Stony Brook University Hospital, Stony Brook, NY, 11794. Phone: (631) 444-2478. Providers update this record themselves, so call before visiting.
How can I verify Christine Ahn, MD's license?
NPPES lists New York license number 257406, 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 Christine Ahn, MD prescribe under Medicare Part D?
In 2024, Christine Ahn, MD had 15 Medicare Part D claims for 13 beneficiaries; the average among emergency medicine physician prescribers was 355. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.