Doylestown Health is consistent with the COVID-19 recommendations of the Centers for Disease Control (CDC)

Doylestown Health supports continued proactive efforts to prevent an uncontrolled outbreak among our most vulnerable populations, including unvaccinated adults as well as children under 5 who are ineligible for vaccination at this time.

For more Doylestown Health COVID-19 information, visit our COVID-19 Update page.

Doylestown Health Physicians Offer Advanced Care for Gynecologic Cancer

New Services, Physician and Practice Announcements |
Categories: Cancer Women's Health
Tommy R. Buchanan, Jr., MD
Tommy R. Buchanan, Jr., MD

Doylestown Health Cancer Institute is pleased to welcome fellowship-trained gynecologic oncologists Tommy R. Buchanan Jr., MD, and Mark S. Shahin, MD, to its team of experts.

Highly skilled and experienced, Dr. Buchanan and Dr. Shahin offer comprehensive, high-level care for cancers of the female reproductive organs, combining leading-edge therapies with personalized care that considers the emotional aspects of cancer treatment. Using an evidence-based, patient-centered approach, they focus on finding the most effective treatment possible, presenting all options to help patients make informed decisions.

Our new Gynecologic Oncologists will collaborate with referring physicians and Doylestown Health Cancer Institute experts in Medical Oncology, Radiation Oncology and Pathology.


A fellowship-trained gynecologic oncologist, Dr. Buchanan is an expert in advanced robot-assisted and minimally invasive surgical techniques, complex open procedures, clinical trials and the treatment of all gynecologic cancers from a surgical and chemotherapy standpoint.

Earning his medical degree at St. George’s University School of Medicine, Dr. Buchanan completed residency training in Obstetrics and Gynecology at Drexel University College of Medicine, Philadelphia, and a fellowship in Gynecologic Oncology at Washington University, St. Louis.


A dual fellowship-trained gynecologic oncologist with more than 20 years of experience, Dr. Shahin is an expert in advanced robot-assisted surgery and a national leader in clinical research.

Earning his medical degree from Northwestern University Medical School, Chicago, Dr. Shahin completed residency training in Obstetrics and Gynecology at McGaw Medical Center of Northwestern University. He completed fellowships in Gynecologic Surgery and Gynecologic Oncology at the University of Iowa Hospitals and Clinics Division of Gynecologic Oncology. He is board-certified in Obstetrics and Gynecology as well as Gynecologic Oncology. He is a Professor of Obstetrics and Gynecology at the Sidney Kimmel College of Thomas Jefferson University and serves as a Principal Investigator for NRG Oncology and GOG partners.


  • Advanced, robotic and minimally invasive surgery
  • The latest science for faster recoveries and pain care designed to reduce opioid use
  • Staging
  • Sentinel lymph node biopsies
  • Access to clinical trials
  • Targeted therapies, immunotherapies
  • Precision medicine, molecular and genomic testing
  • Genetic testing for patients and family members
  • Prophylactic surgeries for those with genetic predisposition for gynecologic cancer
  • Fertility preservation
  • Complex benign gynecologic surgery for patients with significant medical and/or surgical histories



Heritage Gateway Building
1980 S. Easton Road
Suite 230
Doylestown, PA 18901

HOURS: By Appointment

PHONE: 215.918.5960

About Doylestown Health Cancer Institute

Doylestown Health Cancer Institute offers patients the quality care they expect from a leader in cancer diagnosis and treatment - close to home. Accredited by the American College of Surgeons Commission on Cancer, and a member of Jefferson's Sidney Kimmel Cancer Network, our board-certified physicians and oncology-certified practitioners provide comprehensive, coordinated care and services for the full range of cancer diagnoses including breast, lung, urologic, gastrointestinal and other cancers.

Blog Posts

Sad man with protective face mask at home living room couch feeling tired and worried suffering depression amid coronavirus lockdown and social distancing. Mental Health and isolation concept. | Doylestown Health
Pandemic Stress and Your Body

Pandemic-related stress has us all on edge. Find out how stress impacts your body and discover simple adjustments to help get you back on track.

View All Articles

Upcoming Classes and Events

For more information or to find a doctor