Mary Hahn, MD
Vascular Neurology Physician · Stony Brook, NY
Mary Hahn, MD is a vascular neurology physician with a practice address in Stony Brook, New York, and NPI 1275021081, issued on Apr 26, 2018. Check the license (New York 322453, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Mary Hahn
- Credential
- MD
- Primary taxonomy
- Vascular Neurology Physician 2084V0102X
- License numbers
- 322453 NY
036.160135 IL
Self-reported in NPPES; status is on the state search - Practice location
- Health Sciences Center T12-020, Stony Brook, NY 11794
- Phone
- (631) 444-8118
- Enumerated
- Apr 26, 2018
- Record last updated
- Jul 11, 2023
- Medicare enrollment
- Enrolled (PECOS I20230706002628); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest vascular neurology physician records → All 96 in New York → Look up another NPI →
Also registered at Health Sciences Center T12-020
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shadikchhya Bhattarai, MDStudent in an Organized Health Care Education/Training Program1528853488
- Joomee Song, MDStudent in an Organized Health Care Education/Training Program1346933348
Verify Mary Hahn 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 322453Check 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 vascular neurology physician in 2024
75 Medicare Part D claims for 20 beneficiaries, against an average of 270 among the 598 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% 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.
The MIPS final score for 2023 (Medicare payment program): 98.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Neurology Associates OF Stony Brook, University Faculty Practice CorpoStony Brook, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Hahn among 96 vascular neurology physician records in New York
Mary Hahn, MD is one of 96 vascular neurology physician records with a practice address in New York. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 75% of them.
- NPI issued2018 · 75% of these records are older, 15% newer
- In a Medicare fileYes · 93% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated2023 · median 2011 among the 80 with a school on file
- Record last updated2023 · 33% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084V0102X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Vascular Neurology Physician providers in New York
There are 96 vascular neurology physician records in New York.
All 96 in New York → Every provider in Stony Brook → Vascular Neurology Physician nationwide →
The 8 vascular neurology physician records with the nearest ZIP codes
- Benny Kim, M.D.Stony Brook, NY 117941649404690
- Galyna Pushchinska, MDStony Brook, NY 117941710147558
- Kamil Stefanowski, M.D.Stony Brook, NY 117941033505102
- Nicholas Mulchan, MDPatchogue, NY 117721932728391
- Alison Caruana, D.O.East Setauket, NY 117331003295163
- Jason Mathew, D.OEast Setauket, NY 117331356617179
- Richard Jung, M.D.Bay Shore, NY 117061477732477
- Andrew Rogove, MDBay Shore, NY 117061295783132
Common questions
What is Mary Hahn, MD's NPI number?
Mary Hahn, MD's National Provider Identifier (NPI) is 1275021081, issued on Apr 26, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Mary Hahn, MD located?
The NPPES record lists a practice address at Health Sciences Center T12-020, Stony Brook, NY, 11794. Phone: (631) 444-8118. Providers update this record themselves, so call before visiting.
How can I verify Mary Hahn, MD's license?
NPPES lists New York license number 322453, 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 Mary Hahn, MD prescribe under Medicare Part D?
In 2024, Mary Hahn, MD had 75 Medicare Part D claims for 20 beneficiaries; the average among vascular neurology physician prescribers was 270. Part D covers Medicare prescriptions only.
What is Mary Hahn, MD's MIPS final score?
The 2023 MIPS final score is 98.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.