NPPES file of Aug 9, 2026

Yann Yi Pan, MD

Family Medicine Physician · Stony Brook, NY

Yann Yi Pan, MD is a family medicine physician with a practice address in Stony Brook, New York, and NPI 1245401033, issued on Mar 19, 2008. Check the license (New York 253520, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1245401033
Name
Yann Yi Pan
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
253520 NY
Self-reported in NPPES; status is on the state search
Practice location
Stony Brook University Hospital, Stony Brook, NY 11794
Phone
(631) 444-3917
Enumerated
Mar 19, 2008
Record last updated
Nov 22, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(631) 444-7552
Medicare enrollment
Enrolled (PECOS I20121029000550); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at Stony Brook University Hospital

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Surabhi Aggarwal, MDNeonatal-Perinatal Medicine Physician1548404254
  2. Obianuju Aguolu, MDStudent in an Organized Health Care Education/Training Program1992957898
  3. Christine Ahn, MDEmergency Medicine Physician1336307461
  4. Andrus Alian, D.O.Emergency Medicine Physician1306082326
  5. Enid Anaya, M.D.Student in an Organized Health Care Education/Training Program1992025043
  6. Elise Arbefeville, MDAnatomic Pathology & Clinical Pathology Physician1659542520

Verify Yann Yi Pan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 253520
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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28% more Medicare Part D claims than the average family medicine physician in 2024

4,524 Medicare Part D claims for 731 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 169 claims were for opioids.

  1. Yann Yi Pan4,524
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium423 claims
  2. Losartan Potassium316 claims
  3. Rosuvastatin Calcium250 claims
  4. Amlodipine Besylate247 claims
  5. Lisinopril191 claims
  6. Metformin Hcl Er137 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.

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupSan Dimas, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Yann Yi Pan among 6,417 family medicine physician records in New York

Yann Yi Pan, MD is one of 6,417 family medicine physician records with a practice address in New York. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 49% of them.

  • NPI issued2008 · 49% of these records are older, 46% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2003 · median 2007 among the 4,188 with a school on file
  • Record last updated2021 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

27 family medicine physician records list a practice address in Stony Brook

They are 27 of the 3,053 NPPES records with a practice address in Stony Brook, and 6,417 family medicine physician records in New York.

The 8 family medicine physician records with the nearest ZIP codes

  1. Keaira Dupuy, MDStony Brook, NY 117941164915484
  2. Timothy Gandolfo, DOStony Brook, NY 117941891375671
  3. Nicholas Korkosz, DOStony Brook, NY 117941134862105
  4. Tauhid Mahmud, MD, MPHStony Brook, NY 117941386273779
  5. Shehryar Malik, DOStony Brook, NY 117941285154419
  6. Lucas McArthur, M.D.Stony Brook, NY 117941013150077
  7. Gretchen Mockler, M.D.Stony Brook, NY 117941164525457
  8. Sujatha Palat, M.DStony Brook, NY 117941083617112

Common questions

What is Yann Yi Pan, MD's NPI number?

Yann Yi Pan, MD's National Provider Identifier (NPI) is 1245401033, issued on Mar 19, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Yann Yi Pan, MD located?

The NPPES record lists a practice address at Stony Brook University Hospital, Stony Brook, NY, 11794. Phone: (631) 444-3917. Providers update this record themselves, so call before visiting.

How can I verify Yann Yi Pan, MD's license?

NPPES lists New York license number 253520, 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 Yann Yi Pan, MD prescribe under Medicare Part D?

In 2024, Yann Yi Pan, MD had 4,524 Medicare Part D claims for 731 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.