Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Matthew J Kerwin, MD

Individual provider Internal Medicine Physician · NPI 1548791114

Matthew J Kerwin, MD is a Hospitalist in New York, New York. Graduated from University of Virginia School of Medicine in 2017, 9 years ago. Practices with Icahn School of Medicine at Mount Sinai, a 2,791-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in New York and Virginia.

Years since qualifying
9
Trained at
University of Virginia School of Medicine
Licensed in
NY, VA
In the registry since
2017
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1 Gustave L Levy Pl
New York, NY 10029-6504
Phone: (212) 241-1653
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 17 E 102nd St, New York, NY 10029-5204 — (212) 241-1653
  • 3300 Gallows Rd, Falls Church, VA 22042-3307 — (703) 776-3582

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 304292 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 0101274482 (VA)

Record details

NPI number1548791114
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 24, 2017
Last updated in NPPESApril 12, 2023
Certification dateApril 12, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF VIRGINIA SCHOOL OF MEDICINE
Graduated 2017 (9 years in practice)
Group practice Icahn School Of Medicine At Mount Sinai — 2791 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients198
Services billed 607 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Icahn School of Medicine at Mount Sinai

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2791 clinicians in the practice; 12 are shown here.

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