Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Simmanjeet Mangat, MD

Works at hospitals in Buffalo, NY · Lewiston, NY · Niagara Falls, NY · New York

Summary

Simmanjeet Mangat, MD (Internal Medicine) is listed by Medicare at 3 hospitals in Buffalo, NY, Lewiston, NY and Niagara Falls, NY. NPI 1275832412. 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 Simmanjeet Mangat, 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
YesOffers telehealth
23Years since medical school (graduated 2003)
FemaleGender (as listed)
Niagara Falls Memorial Medical CenterGroup practice

Quick answers

Which hospitals does Simmanjeet Mangat work at?
Medicare's official clinician data lists Simmanjeet Mangat at 3 hospitals: Kaleida Health, Mount St. Mary's Hospital & Health Center and Niagara Falls Memorial Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Simmanjeet Mangat see patients?
Medicare's clinician data lists 2 practice locations, including Niagara Falls, NY. Call before your visit to confirm the address.
What is Simmanjeet Mangat's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Simmanjeet Mangat accept Medicare assignment?
Yes. Medicare's clinician data says Simmanjeet Mangat 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.
Does Simmanjeet Mangat offer telehealth?
Medicare's clinician data says Simmanjeet Mangat offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Simmanjeet Mangat?
(716) 278-4290, as listed in official Medicare / NPI Registry data.
What is Simmanjeet Mangat's NPI number?
1275832412. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Simmanjeet Mangat works

Medicare's Facility Affiliation Data lists Simmanjeet Mangat 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 Simmanjeet Mangat is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Simmanjeet Mangat as a member of this group (CMS data updated 2026-10-02).

  • Niagara Falls Memorial Medical Center70 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Niagara Falls

Clinicians with the same Medicare primary specialty in Niagara Falls, NY — not a recommendation.

All internal medicine doctors in Niagara Falls →

Clinician information

CredentialMD
Graduation year2003
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1275832412
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