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 TESTER, MD

HEMATOLOGY/ONCOLOGY

Medical school: HAHNEMANN UNIVERSITY COLLEGE OF MEDICINE

Graduated: 1972

Offers telehealth

NPI: 1386613693

Practice Locations (1)

JEFFERSON UNIVERSITY PHYSICIANS

925 CHESTNUT ST, SUITE 3

PHILADELPHIA, PA 191074216

2159558874

Source: CMS National Downloadable File, September 2026.