Matthew Kerwin, MD
NPI 1548791114 · Hospitalist Physician · New York, NY
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Kerwin, MD is a Hospitalist Physician provider in New York, NY (NPI 1548791114).
Provider details
- NPI number
- 1548791114
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101274482 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
572 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 307 | $130 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 129 | $86 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 51 | $189 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 49 | $125 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 20 | $8 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
Practice location
Mailing address
Additional practice locations (2)
- 17 E 102nd StNew York, NY 10029-5204Phone: (212) 241-1653
- 3300 Gallows RdFalls Church, VA 22042-3307Phone: (703) 776-3582Fax: (703) 776-3481
Registry dates
- Enumerated
- 2017-03-24
- Last updated
- 2023-04-12
- Certified
- 2023-04-12
Frequently asked questions
- What is Matthew Kerwin's NPI number?
- Matthew Kerwin's National Provider Identifier (NPI) is 1548791114, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Kerwin's specialty?
- Matthew Kerwin is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Kerwin located?
- Matthew Kerwin's practice location on file with NPPES is 1 Gustave L Levy Pl, New York, NY 10029-6504.
- What is Matthew Kerwin's phone number?
- The practice phone number listed in the NPPES registry for Matthew Kerwin is (212) 241-1653.
- Does Matthew Kerwin accept Medicare?
- Matthew Kerwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Kerwin's NPI active?
- Yes — Matthew Kerwin's NPI (1548791114) is active in the NPPES registry as of the last update on 2023-04-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.