Yi An, MD


Radiation Oncology

Conditions & Treatments

Gastrointestinal Cancer, Head & Neck Cancers, Prostate Cancer, Radiation Oncology

(203) 785-7385
Accepting New Patients
Telehealth Visits


Yi An, MD, is a radiation oncologist in the Department of Therapeutic Radiology at Yale Medicine. He specializes in treating head and neck, gastrointestinal, prostate and lung cancers.

“I am so fortunate to have the privilege of taking care of cancer patients,” 

Dr. An says. “Every day, I have the special opportunity to get to know and form lasting relationships with my patients.” Dr. An is trained in modern radiation treatment techniques, including intensity-modulated radiation therapy, stereotactic body radiation therapy and stereotactic radiosurgery. These cutting-edge radiation techniques, Dr. An says, can target and destroy cancer cells while also minimizing radiation doses to normal tissue and reduce the risk of side effects of treatment.

“Being with my patients at perhaps their most trying time in life,” he says, “drives me to do everything possible to cure their disease and alleviate their pain.”  

 At Yale School of Medicine, Dr. An is an assistant professor of therapeutic radiology.





Affiliated With

Smilow Cancer Hospital, Yale Medicine


Education & Training


Stanford University Medical Center


Santa Clara Valley Medical Center


Yal-New Haven Hospital

Accepted Insurance

Insurance coverage regularly changes, please contact the doctor’s office directly to verify that your specific insurance plan is accepted.

  • aetna
  • anthem bc/bs
  • berkeley care network
  • cigna healthcare
  • community care network
  • connecticare
  • corvel
  • first health network
  • focus healthcare
  • great west
  • husky
  • medicaid
  • medicare
  • multiplan
  • oxford health plans
  • railroad medicare
  • tricare/champus
  • united healthcare
  • us family health plan
  • wellcare