Diana M. Casallas, PA-C
Internal Medicine
Accepting new patients
Sees patients age 12 and up
Penn Primary Care Lansdale
Schedule onlineCall 215-368-1900
Headshot of Diana M. Casallas, PA-C
Penn Medicine Provider

About me

Education and training

  • Graduate School: Philadelphia College of Osteopathic Medicine

What my patients think about me

Average Rating

701 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.

February 2026
great doctor, very patient and listen to all my concerns and together and make important recommendations that's best for me.
February 2026
i just love how she really pays attention and listens and gives me great advice and has always helped me. i'm very happy i found her.
February 2026
i really appreciate how kind, and professional diana casallas is and i am happy to be her patient.
February 2026
answers questions, make you feel comfortable during appt. not a rushed experience

Insurance accepted

My Locations

Penn Medicine hospital privileges

  • Penn Presbyterian Medical Center: Advanced Practice Provider
Ms. Casallas is a Penn Medicine provider.

Qualifications and experience

Treatments and Conditions