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Internal Medicine

Rajinder S. Sachar, MD

Works at hospitals in Buffalo, NY · New York

Summary

Dr. Rajinder S. Sachar, MD is an internal medicine doctor at 36 Wellingwood Dr, East Amherst, NY 14051. Phone: (716) 689-9054. Accepts Medicare assignment. In 2024, Rajinder S. Sachar had 224 Original Medicare patients and 331 services. NPI 1114943719. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 36 Wellingwood Dr, East Amherst, NY 14051 · Directions (1 more location)
  • Phone: (716) 689‑9054
  • Medicare: Accepts Medicare assignment
  • Hospital: Mercy Hospital of Buffalo
  • Group practice: Mercy Hospital of Buffalo
  • Medical school: graduated 1961 (65 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Rajinder S. Sachar, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Rajinder S. Sachar accept Medicare assignment?
Yes. Medicare's clinician data says Rajinder S. Sachar accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Rajinder S. Sachar see?
In 2024, CMS data shows 224 Original Medicare patients and 331 services for Rajinder S. Sachar. This counts Original Medicare only and measures volume, not quality.
What is Rajinder S. Sachar's NPI number?
1114943719. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Rajinder S. Sachar, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients224
Services billed to Medicare331
Different services or procedures3
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)285 services
  2. Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician (93016)23 services
  3. Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician (93018)23 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis53%
  • Ischemic heart disease50%
  • Chronic kidney disease44%
  • Anxiety41%

Hospitals where Rajinder S. Sachar works

Medicare's Facility Affiliation Data lists Rajinder S. Sachar at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Rajinder S. Sachar is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Rajinder S. Sachar as a member of this group (CMS data updated October 2, 2026).

  • Mercy Hospital of Buffalo196 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in New York

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

All internal medicine doctors in New York →

Other clinicians in Mercy Hospital of Buffalo

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1961 (65 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1114943719
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians