John O. Allen, MD
Family Medicine
Accepting new patients
Sees patients of all ages
LG Health Physicians Family Medicine Strasburg
Penn Medicine Provider

About me

Education and training

  • Medical School: University of North Carolina Hospitals
  • Residency: Lancaster General Hospital

What my patients think about me

Average Rating

226 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.

November 2025
he listens
November 2025
he did a great job
November 2025
dr. allen is easy to talk to and make you feel at ease
November 2025
great doctor that cares and shows it.

Insurance accepted

My Locations

Penn Medicine hospital privileges

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

Qualifications and experience

Treatments and Conditions