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Pathology

Sam Nassar, MD

Works at hospitals in Beaver, PA · Sewickley, PA · Butler, PA … · Pennsylvania

Summary

Sam Nassar, MD (Pathology) is listed by Medicare at 5 hospitals in Beaver, PA, Sewickley, PA and Butler, PA and other places. NPI 1669541009. 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 Sam Nassar, 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

PathologyPrimary specialty
YesAccepts Medicare assignment
39Years since medical school (graduated 1987)
MaleGender (as listed)
Butler Medical ProvidersGroup practice (+5 more)

Quick answers

Which hospitals does Sam Nassar work at?
Medicare's official clinician data lists Sam Nassar at 5 hospitals: Heritage Valley Beaver, Heritage Valley Sewickley, Independence Health System Butler Memorial Hospita…, Independence Health System Clarion Hospital and Magee Womens Hospital of UPMC Health System. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Sam Nassar see patients?
Medicare's clinician data lists 9 practice locations, including Clarion, PA, Butler, PA and Beaver, PA. Call before your visit to confirm the address.
What is Sam Nassar's specialty?
Medicare lists Pathology as the primary specialty.
Does Sam Nassar accept Medicare assignment?
Yes. Medicare's clinician data says Sam Nassar 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 Sam Nassar?
(724) 284-4513, as listed in official Medicare / NPI Registry data.
What is Sam Nassar's NPI number?
1669541009. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Sam Nassar works

Medicare's Facility Affiliation Data lists Sam Nassar 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 Sam Nassar is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 9; the Medicare profile lists all.

Group practices

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

  • Butler Medical Providers360 clinicians in the group
  • Dayton Gastroenterology, LLC74 clinicians in the group
  • Pittsburgh Gastroenterology Associates26 clinicians in the group
  • Center for Digestive Health and Nutrition12 clinicians in the group
  • South Hills Gastroenterology Associates LLC5 clinicians in the group
  • Beaver Valley Pathology Associates Ltd4 clinicians in the group

Specialties

Find other Pathology doctors in Pennsylvania →

Other pathologists in Pennsylvania

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

All pathologists in Pennsylvania →

Clinician information

CredentialMD
Graduation year1987
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1669541009
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