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Internal Medicine

Allison E. Keenan, DO

Works at hospitals in Philadelphia, PA · Langhorne, PA · Pennsylvania

Summary

Allison E. Keenan, DO (Internal Medicine) is listed by Medicare at 3 hospitals in Philadelphia, PA and Langhorne, PA. NPI 1114130887. 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 Allison E. Keenan, 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
21Years since medical school (graduated 2005)
Philadelphia College Of Osteopathic MedicineMedical school
FemaleGender (as listed)
Galen Inpatient Physicians PCGroup practice (+1 more)

Quick answers

Which hospitals does Allison E. Keenan work at?
Medicare's official clinician data lists Allison E. Keenan at 3 hospitals: Hospital of Univ of Pennsylvania, Nazareth Hospital and St Mary Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Allison E. Keenan see patients?
Medicare's clinician data lists 2 practice locations, including Langhorne, PA. Call before your visit to confirm the address.
What is Allison E. Keenan's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Allison E. Keenan accept Medicare assignment?
Yes. Medicare's clinician data says Allison E. Keenan 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 Allison E. Keenan?
(215) 710-2000, as listed in official Medicare / NPI Registry data.
What is Allison E. Keenan's NPI number?
1114130887. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Allison E. Keenan works

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

Group practices

Medicare enrollment lists Allison E. Keenan as a member of these groups (CMS data updated 2026-10-02).

  • Galen Inpatient Physicians PC1,077 clinicians in the group
  • Trinity Health Mid-Atlantic Medical Group334 clinicians in the group

Specialties

Find other Internal Medicine doctors in Pennsylvania →

Other internal medicine doctors in Langhorne

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

All internal medicine doctors in Langhorne →

Clinician information

CredentialDO
Medical schoolPhiladelphia College Of Osteopathic Medicine
Graduation year2005
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1114130887
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