Mark L. Simmons, MD
Internal Medicine
Sees patients age 18 and up
LG Health Physicians Internal Medicine
Make an appointmentCall 717-544-3191
Penn Medicine Provider

About me

  • Regional Medical Director, Primary Care, Lancaster General Health Physicians

Education and training

  • Medical School: Pennsylvania State University College of Medicine
  • Residency: Fitzsimons Army Medical Center

What my patients think about me

Average Rating

254 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.

Anonymous
March 2026
excellent doctor
Anonymous
March 2026
listens to questions and explains thoroughly and gives the current literature stand on medical issues
Anonymous
March 2026
dr simmons is the very best.
Anonymous
March 2026
great provider

Insurance accepted

My Locations

Penn Medicine hospital privileges

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

Qualifications and experience

Treatments and Conditions