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

My education and training

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

Spoken languages

English
English

Reviews

Average Rating

242 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
May 2026
dr. simmons is always pleasant and puts his patient at ease.
Anonymous
May 2026
ive been seeing dr. simmons with confidence for years. if he were taking new patients, i would recommend him to everyone i know.
Anonymous
May 2026
thank you
Anonymous
May 2026
he made me feel that he genuinely wanted to help me maintain good health.

Insurance accepted

Please contact the practice and/or the member services department of your insurance company for specific details before receiving services. Providers may participate in some, but not all, products offered by a health plan; providers may also accept plans at some practice locations but not others.

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