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Radiation Oncology

Gregory Alexander, MD

Works at hospitals in Stratford, NJ · Philadelphia, PA · New Jersey, Pennsylvania

Summary

Gregory Alexander, MD (Radiation Oncology) is listed by Medicare at 2 hospitals in Stratford, NJ and Philadelphia, PA. NPI 1588157895. 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 Gregory Alexander, 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

Radiation OncologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
8Years since medical school (graduated 2018)
Jefferson Medical College Of Thomas Jefferson UniversityMedical school
MaleGender (as listed)
Jefferson University PhysiciansGroup practice (+1 more)

Quick answers

Which hospitals does Gregory Alexander work at?
Medicare's official clinician data lists Gregory Alexander at 2 hospitals: Jefferson Stratford Hospital and Thomas Jefferson University Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Gregory Alexander see patients?
Medicare's clinician data lists 2 practice locations, including Philadelphia, PA and Sewell, NJ. Call before your visit to confirm the address.
What is Gregory Alexander's specialty?
Medicare lists Radiation Oncology as the primary specialty.
Does Gregory Alexander accept Medicare assignment?
Yes. Medicare's clinician data says Gregory Alexander 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 Gregory Alexander offer telehealth?
Medicare's clinician data says Gregory Alexander offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Gregory Alexander?
(215) 955-6702, as listed in official Medicare / NPI Registry data.
What is Gregory Alexander's NPI number?
1588157895. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Gregory Alexander works

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

Group practices

Medicare enrollment lists Gregory Alexander as a member of these groups (CMS data updated 2026-10-02).

  • Jefferson University Physicians1,531 clinicians in the group
  • Kennedy Medical Group Practice, P.C.418 clinicians in the group

Specialties

Find other Radiation Oncology doctors in Pennsylvania →

Other radiation oncologists in Philadelphia

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

All radiation oncologists in Philadelphia →

Clinician information

CredentialMD
Medical schoolJefferson Medical College Of Thomas Jefferson University
Graduation year2018
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1588157895
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