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

Family Practice

William J. Warning, MD

Works at hospitals in Philadelphia, PA · Pennsylvania

Summary

William J. Warning, MD (Family Practice) is listed by Medicare at 1 hospital in Philadelphia, PA. NPI 1134273733. 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 William J. Warning, 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

Family PracticePrimary specialty
YesAccepts Medicare assignment
38Years since medical school (graduated 1988)
MaleGender (as listed)
Clinical Specialty AssociatesGroup practice

Quick answers

Which hospitals does William J. Warning work at?
Medicare's official clinician data lists William J. Warning at 1 hospital: Hospital of Univ of Pennsylvania. This is where the clinician works or has privileges; call the hospital to confirm.
Where does William J. Warning see patients?
Medicare's clinician data lists 1 practice location in Springfield, PA. Call before your visit to confirm the address.
What is William J. Warning's specialty?
Medicare lists Family Practice as the primary specialty.
Does William J. Warning accept Medicare assignment?
Yes. Medicare's clinician data says William J. Warning 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 William J. Warning?
(610) 690-4490, as listed in official Medicare / NPI Registry data.
What is William J. Warning's NPI number?
1134273733. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where William J. Warning works

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

  • 1260 E Woodland Ave, Suite 200 Penn Family Medicine Woodland AvSpringfield, PA 19064 (610) 690‑4490

Group practices

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

  • Clinical Specialty Associates171 clinicians in the group

Specialties

Find other Family Practice doctors in Pennsylvania →

Other family doctors in Springfield

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

All family doctors in Springfield →

Clinician information

CredentialMD
Graduation year1988
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1134273733
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