NPPES file of Aug 9, 2026

Matthew J. Kerwin, MD

Hospitalist Physician · New York, NY

Matthew J. Kerwin, MD is a hospitalist physician with a practice address in New York, New York, and NPI 1548791114, issued on Mar 24, 2017. Check the license (New York 304292, 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
1548791114
Name
Matthew J. Kerwin
Credential
MD
Primary taxonomy
Hospitalist Physician 208M00000X
License numbers
304292 NY
0101274482 VA
Self-reported in NPPES; status is on the state search
Practice location
1 Gustave L Levy PL, New York, NY 10029
Phone
(212) 241-1653
Enumerated
Mar 24, 2017
Record last updated
Apr 12, 2023
Medicare enrollment
Enrolled (PECOS I20201023000937); accepts Medicare assignment
Medical or professional school
University Of Virginia School Of Medicine, 2017
Telehealth
Offers telehealth (CMS)
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 1 Gustave L Levy PL

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

  1. Lila Abassi, M.D.Hospitalist Physician1871886606
  2. Erin AbbottStudent in an Organized Health Care Education/Training Program1699587170
  3. Ghadi AbboudDiagnostic Radiology Physician1740936822
  4. Richard Abel, M.D.Anesthesiology Physician1508148016
  5. Jessica Ables, M.D., PH.D.Psychiatry Physician1437543352
  6. Grant AbrahamsonStudent in an Organized Health Care Education/Training Program1194512590

Verify Matthew J. Kerwin 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 304292
    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

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94% fewer Medicare Part D claims than the average hospitalist physician in 2024

29 Medicare Part D claims for 16 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.

  1. Matthew Kerwin29
  2. Specialty average521

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. Icahn School OF Medicine AT Mount SinaiNew York, NY

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

Matthew J. Kerwin among 2,067 hospitalist physician records in New York

Matthew J. Kerwin, MD is one of 2,067 hospitalist 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 2017, is newer than 58% of them.

  • NPI issued2017 · 58% of these records are older, 36% newer
  • In a Medicare fileYes · 93% of these records are
  • In the CMS Doctors and Clinicians fileYes · 83% of these records are
  • Graduated2017 · median 2013 among the 1,716 with a school on file
  • Record last updated2023 · 37% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in New York

There are 2,067 hospitalist physician records in New York.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Ramin Asgary, MDNew York, NY 100291235353053
  2. Imuetinyan Asuen, MDNew York, NY 100291316968530
  3. Andrew Dunn, MDNew York, NY 100291326078833
  4. Erin Gabriel, M.D.New York, NY 100291669658290
  5. Brian Markoff, MDNew York, NY 100291083646111
  6. Yuko Merchant, MDNew York, NY 100291134304108
  7. Vinh-Tung NguyenNew York, NY 100291497927750
  8. Peter Rachlin, MDNew York, NY 100291528264132

Common questions

What is Matthew J. Kerwin, MD's NPI number?

Matthew J. Kerwin, MD's National Provider Identifier (NPI) is 1548791114, issued on Mar 24, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Matthew J. Kerwin, MD located?

The NPPES record lists a practice address at 1 Gustave L Levy PL, New York, NY, 10029. Phone: (212) 241-1653. Providers update this record themselves, so call before visiting.

How can I verify Matthew J. Kerwin, MD's license?

NPPES lists New York license number 304292, 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 Matthew J. Kerwin, MD prescribe under Medicare Part D?

In 2024, Matthew J. Kerwin, MD had 29 Medicare Part D claims for 16 beneficiaries; the average among hospitalist physician prescribers was 521. 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.