Charles M. Defendorf, DO

Internal Medicine
Accepting new patients
Sees patients age 18 and up
Penn Princeton Primary Care Monroe
View 1 additional location
Headshot of Charles M. Defendorf, DO
Penn Medicine Provider

About me

My education and training

  • Medical School: Rowan-Virtua School of Osteopathic Medicine
  • Residency: Hackensack University Medical Center
  • Residency: Bluefield Regional Medical Center

Reviews

Average Rating

1226 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
knowledgeable
Anonymous
May 2026
dr. defendorf is very thorough and will do all he can to help you with any problems
Anonymous
May 2026
he was able to answer all my questions and made me feel at ease
Anonymous
May 2026
i have referred several patients to him who love him including myself

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

  • Princeton Medical Center: On the medical staff, but does not have privileges to treat patients in the hospital.
Dr. Defendorf is a Penn Medicine physician. In New Jersey, providers are affiliated with Penn Medicine through Clinical Health Care Associates of New Jersey or Princeton Healthcare Affiliated Physicians, PC.

Qualifications and experience

Treatments and Conditions