Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Charles Christopher Greim, MD

Individual provider Physical Medicine & Rehabilitation Physician · NPI 1790714970

Charles Christopher Greim, MD is registered under Physical Medicine and Rehabilitation in Pittsburgh, Pennsylvania. Graduated from Wayne State University School of Medicine in 1980, 46 years ago. Practices with Allegheny Clinic, a 2,300-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
46
Trained at
Wayne State University School of Medicine
Licensed in
PA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4727 Friendship Ave Ste 140
Pittsburgh, PA 15224-1778
Phone: (412) 235-5885
Fax: (412) 235-5886
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physical Medicine & Rehabilitation Physician (primary) Taxonomy 208100000X · Licence MD036833E (PA)

Record details

NPI number1790714970
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 1, 2006
Last updated in NPPESOctober 12, 2020
Certification dateOctober 12, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICAL MEDICINE AND REHABILITATION
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1980 (46 years in practice)
Group practice Allegheny Clinic — 2300 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients379
Services billed 530 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Allegheny Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2300 clinicians in the practice; 12 are shown here.

Other providers in Pittsburgh