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

Hematology/Oncology

Peter J. O Dwyer, MD

Works at hospitals in Philadelphia, PA · Pennsylvania

Summary

Peter J. O Dwyer, MD (Hematology/Oncology) is listed by Medicare at 1 hospital in Philadelphia, PA. NPI 1053482125. 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 Peter J. O Dwyer, 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

Hematology/OncologyPrimary specialty
YesAccepts Medicare assignment
51Years since medical school (graduated 1975)
MaleGender (as listed)
University of Penn - Medical GroupGroup practice

Quick answers

Which hospitals does Peter J. O Dwyer work at?
Medicare's official clinician data lists Peter J. O Dwyer at 1 hospital: Hospital of University of Pennsylvania. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Peter J. O Dwyer see patients?
Medicare's clinician data lists 1 practice location in Philadelphia, PA. Call before your visit to confirm the address.
What is Peter J. O Dwyer's specialty?
Medicare lists Hematology/Oncology as the primary specialty.
Does Peter J. O Dwyer accept Medicare assignment?
Yes. Medicare's clinician data says Peter J. O Dwyer 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 Peter J. O Dwyer's NPI number?
1053482125. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Peter J. O Dwyer works

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

Group practices

Medicare enrollment lists Peter J. O Dwyer as a member of this group (CMS data updated 2026-10-02).

  • University of Penn - Medical Group3,505 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in Pennsylvania →

Other hematologist-oncologists in Philadelphia

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

All hematologist-oncologists in Philadelphia →

Clinician information

CredentialMD
Graduation year1975
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1053482125
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