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Internal Medicine

Sanjay Aggarwal, MD

Works at hospitals in Bridgeport, CT · Derby, CT · New Haven, CT · Connecticut

Summary

Sanjay Aggarwal, MD (Internal Medicine) is listed by Medicare at 3 hospitals in Bridgeport, CT, Derby, CT and New Haven, CT. NPI 1912927658. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Sanjay Aggarwal, 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
35Years since medical school (graduated 1991)
MaleGender (as listed)
Rehabilitation Associates IncGroup practice (+2 more)

Quick answers

Which hospitals does Sanjay Aggarwal work at?
Medicare's official clinician data lists Sanjay Aggarwal at 3 hospitals: Bridgeport Hospital, Griffin Hospital and Yale-New Haven Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Sanjay Aggarwal see patients?
Medicare's clinician data lists 3 practice locations, including Wolcott, CT, Fairfield, CT and Milford, CT. Call before your visit to confirm the address.
What is Sanjay Aggarwal's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Sanjay Aggarwal accept Medicare assignment?
Yes. Medicare's clinician data says Sanjay Aggarwal 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 Sanjay Aggarwal?
(475) 224-6871, as listed in official Medicare / NPI Registry data.
What is Sanjay Aggarwal's NPI number?
1912927658. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Sanjay Aggarwal works

Medicare's Facility Affiliation Data lists Sanjay Aggarwal at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Sanjay Aggarwal is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Sanjay Aggarwal as a member of these groups (CMS data updated 2026-10-02).

  • Rehabilitation Associates Inc529 clinicians in the group
  • Sanjay Aggarwal7 clinicians in the group
  • Genesis Medica LLC3 clinicians in the group

Specialties

Find other Internal Medicine doctors in Connecticut →

Other internal medicine doctors in Connecticut

Clinicians with the same Medicare primary specialty in Connecticut — not a recommendation.

All internal medicine doctors in Connecticut →

Clinician information

CredentialMD
Graduation year1991
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1912927658
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians