HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / PA

WILLIAM R GREER, MD

INTERNAL MEDICINE

Medical school: PERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA

Graduated: 1993

Offers telehealth

NPI: 1598722472

Practice Locations (2)

PHOENIX REHABILITATION AND HEALTH SERVICES INC

2000 WESTINGHOUSE DR, SUITE 200

CRANBERRY TWP, PA 160665238

21 INDUSTRIAL BLVD, SUITE 200

PAOLI, PA 193011610

6106510370

Source: CMS National Downloadable File, September 2026.