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Pathology

Philip F. Petersen, MD

Sees patients in Covina, CA · Lancaster, CA · California

Summary

Dr. Philip F. Petersen, MD is a pathologist at 16633 E Greenhaven St, Covina, CA 91722. May accept Medicare assignment. NPI 1538797543. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Pathologist (Medicare lists Pathology)
  • Address: 16633 E Greenhaven St, Covina, CA 91722 · Directions (1 more location)
  • Medicare: May accept Medicare assignment
  • Medical school: graduated 2020 (6 years since medical school)
  • Gender (as listed): Male
NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Philip F. Petersen, 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 Philip F. Petersen accept Medicare assignment?
Medicare's clinician data says Philip F. Petersen may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Philip F. Petersen's NPI number?
1538797543. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Philip F. Petersen is enrolled with Medicare (CMS data updated October 2, 2026).

  • 16633 E Greenhaven StCovina, CA 91722
  • 335 E Ave ILancaster, CA 93535

Specialties

Find other Pathology doctors in California →

Other pathologists in California

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

All pathologists in California →

Clinician information

CredentialMD
Graduation year2020 (6 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1538797543
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians