John M. Granger, MD
Infectious Diseases
Accepting new patients
Sees patients age 18 and up
LG Health Physicians Infectious Diseases
Schedule onlineCall 717-544-3517
Penn Medicine Provider

About me

Education and training

  • Medical School: Medical College of Ohio
  • Residency: Christiana Care Health System
  • Fellowship: MD Anderson Cancer Center

What my patients think about me

Average Rating

40 reviews

Comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Penn Medicine.

October 2025
he's an excellent, knowledgeable professional. i trust his judgement.
October 2025
explained things well.
October 2025
nice
September 2025
have recomended to all friends and family. patient, kind, thorough and excellent bedside manner

Insurance accepted

My Locations

Penn Medicine hospital privileges

  • Lancaster General Hospital: Has privileges to treat patients in the hospital.
Dr. Granger is a Penn Medicine Lancaster General Health physician.

Qualifications and experience

Treatments and Conditions