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Internal Medicine

Jennifer W. McCarthy, MD

Sees patients in New Haven, CT · Connecticut

Summary

Jennifer W. McCarthy, MD (Internal Medicine) is enrolled with Medicare at 1 practice location in New Haven, CT. NPI 1336281187. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Jennifer W. McCarthy, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
29Years since medical school (graduated 1997)
FemaleGender (as listed)
Yale UniversityGroup practice

Quick answers

Where does Jennifer W. McCarthy see patients?
Medicare's clinician data lists 1 practice location in New Haven, CT. Call before your visit to confirm the address.
What is Jennifer W. McCarthy's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Jennifer W. McCarthy accept Medicare assignment?
Yes. Medicare's clinician data says Jennifer W. McCarthy accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Jennifer W. McCarthy?
(203) 432-0076, as listed in official Medicare / NPI Registry data.
What is Jennifer W. McCarthy's NPI number?
1336281187. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Jennifer W. McCarthy is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Jennifer W. McCarthy as a member of this group (CMS data updated 2026-10-02).

  • Yale University2,645 clinicians in the group

Specialties

Find other Internal Medicine doctors in Connecticut →

Other internal medicine doctors in New Haven

Clinicians with the same Medicare primary specialty in New Haven, CT — not a recommendation.

All internal medicine doctors in New Haven →

Clinician information

CredentialMD
Graduation year1997
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1336281187
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians