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Internal Medicine

Louis E. Leff, MD

Works at hospitals in Pittsburgh, PA · Pennsylvania

Summary

Louis E. Leff, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Pittsburgh, PA. NPI 1962505537. 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 Louis E. Leff, 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
41Years since medical school (graduated 1985)
Perelman School Of Med At The University Of PennsylvaniaMedical school
MaleGender (as listed)
UPMC Community Medicine IncGroup practice

Quick answers

Which hospitals does Louis E. Leff work at?
Medicare's official clinician data lists Louis E. Leff at 2 hospitals: Magee Womens Hospital of UPMC Health System and UPMC Presbyterian Shadyside. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Louis E. Leff see patients?
Medicare's clinician data lists 3 practice locations, including Pittsburgh, PA and Hermitage, PA. Call before your visit to confirm the address.
What is Louis E. Leff's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Geriatric Medicine.
Does Louis E. Leff accept Medicare assignment?
Yes. Medicare's clinician data says Louis E. Leff 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 Louis E. Leff offer telehealth?
Medicare's clinician data says Louis E. Leff offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Louis E. Leff?
(412) 623-6889, as listed in official Medicare / NPI Registry data.
What is Louis E. Leff's NPI number?
1962505537. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Louis E. Leff works

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

Group practices

Medicare enrollment lists Louis E. Leff as a member of this group (CMS data updated 2026-10-02).

  • UPMC Community Medicine Inc736 clinicians in the group

Specialties

Find other Internal Medicine doctors in Pennsylvania →

Other internal medicine doctors in Pittsburgh

Clinicians with the same Medicare primary specialty in Pittsburgh, PA — not a recommendation.

All internal medicine doctors in Pittsburgh →

Clinician information

CredentialMD
Medical schoolPerelman School Of Med At The University Of Pennsylvania
Graduation year1985
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1962505537
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