NPPES file of Aug 9, 2026

Alexander Shon Chen, MD

Internal Medicine Physician · New York, NY

Alexander Shon Chen, MD is an internal medicine physician with a practice address in New York, New York, and NPI 1912609181, issued on Mar 20, 2023. Check the license (New York 343217-01, 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
1912609181
Name
Alexander Shon Chen
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
343217-01 NY
Self-reported in NPPES; status is on the state search
Practice location
575 Lexington Ave, New York, NY 10022
Phone
(646) 962-6828
Enumerated
Mar 20, 2023
Record last updated
Jun 26, 2026
Medicare enrollment
Enrolled (PECOS I20260610001072); may accept Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 2023
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 575 Lexington Ave

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

  1. Sonia BasraPhysical Therapist1295127009
  2. Louis Chung, MDHospitalist Physician1639486517
  3. Kristen Crisara, DPTPhysical Therapist1730460809
  4. Prachi Dalal, PTPhysical Therapist1396074191
  5. Debora Farazmand, RPHPharmacist1720264526
  6. Joel Grad, M.D.Orthopaedic Hand Surgery Physician1285883942

Verify Alexander Shon Chen 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 343217-01
    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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92% fewer Medicare Part D claims than the average internal medicine physician in 2024

261 Medicare Part D claims for 58 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Alexander Chen261
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium34 claims
  2. Losartan Potassium13 claims
  3. Hydrochlorothiazide12 claims
  4. Lisinopril12 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.

Alexander Shon Chen among 12,067 internal medicine physician records in New York

Alexander Shon Chen, 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 2023, is newer than 96% of them.

  • NPI issued2023 · 96% of these records are older, 2% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2023 · median 2002 among the 7,221 with a school on file
  • Record last updated2026 · 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.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Howard Adler, M.D.New York, NY 100221629078803
  2. David Case, M.D.New York, NY 100221699771758
  3. Alan Dechiario, M.D.New York, NY 100221497751523
  4. Eric Goldberg, MDNew York, NY 100221659379014
  5. Edward Greaney, MDNew York, NY 100221265430714
  6. Ellen Mellow, MDNew York, NY 100221366444259
  7. Deena Nelson, M.D.New York, NY 100221992701551
  8. Mary Parker, M.D.New York, NY 100221790781789

Common questions

What is Alexander Shon Chen, MD's NPI number?

Alexander Shon Chen, MD's National Provider Identifier (NPI) is 1912609181, issued on Mar 20, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Shon Chen, MD located?

The NPPES record lists a practice address at 575 Lexington Ave, New York, NY, 10022. Phone: (646) 962-6828. Providers update this record themselves, so call before visiting.

How can I verify Alexander Shon Chen, MD's license?

NPPES lists New York license number 343217-01, 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 Alexander Shon Chen, MD prescribe under Medicare Part D?

In 2024, Alexander Shon Chen, MD had 261 Medicare Part D claims for 58 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.