Matthew C. Brennan, MD
Hematology, Medical Oncology
Accepting new patients
Sees patients age 18 and up
LG Health Physicians Hematology and Medical Oncology
Make an appointmentCall 717-544-9400
Penn Medicine Provider

About me

Education and training

  • Medical School: Pennsylvania State University College of Medicine
  • Residency: Thomas Jefferson University Hospital
  • Fellowship: Penn State Milton S. Hershey Medical Center

What my patients think about me

Average Rating

243 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
everyone was very friendly
October 2025
not only is dr. brennan well-versed in current breast cancer protocols, but he is very honest and direct with me in terms of what my options are. that benefited me greatly just after key. trudeau was introduced as a breast cancer treatment. he gave me the choice of traditional care versus the key truda enhanced chemo and it was life-changing in the most positive way.
October 2025
he is the best. concerned and caring. clear in his advice.
October 2025
knowledgeable, friendly, kind

Insurance accepted

My Locations

Penn Medicine hospital privileges

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

Qualifications and experience

Treatments and Conditions