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Cardiovascular Disease (Cardiology)

Mark J. Geller, MD

Works at hospitals in Monroeville, PA · Jefferson Hills, PA · Pittsburgh, PA · Pennsylvania

Summary

Mark J. Geller, MD (Cardiovascular Disease (Cardiology)) is listed by Medicare at 5 hospitals in Monroeville, PA, Jefferson Hills, PA and Pittsburgh, PA. NPI 1396709069. 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 Mark J. Geller, 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

Cardiovascular Disease (Cardiology)Primary specialty
YesAccepts Medicare assignment
49Years since medical school (graduated 1977)
Albert Einstein College Of Medicine Of Yeshiva UniversityMedical school
MaleGender (as listed)

Quick answers

Which hospitals does Mark J. Geller work at?
Medicare's official clinician data lists Mark J. Geller at 5 hospitals: Forbes Hospital, Jefferson Hospital, Magee Womens Hospital of UPMC Health System, UPMC Presbyterian Shadyside and UPMC St Margaret. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mark J. Geller see patients?
Medicare's clinician data lists 1 practice location in Blawnox, PA. Call before your visit to confirm the address.
What is Mark J. Geller's specialty?
Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
Does Mark J. Geller accept Medicare assignment?
Yes. Medicare's clinician data says Mark J. Geller 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 Mark J. Geller?
(412) 965-3335, as listed in official Medicare / NPI Registry data.
What is Mark J. Geller's NPI number?
1396709069. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mark J. Geller works

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

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Pennsylvania →

Other cardiologists in Pennsylvania

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

All cardiologists in Pennsylvania →

Clinician information

CredentialMD
Medical schoolAlbert Einstein College Of Medicine Of Yeshiva University
Graduation year1977
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1396709069
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