Patrick G. O'Connor, MD,MPH


Internal Medicine

Conditions & Treatments

Internal Medicine, Primary Care, Substance Abuse

(203) 688-5555
Telehealth Visits


Dr. O’Connor has focused his scholarly work on the interface between primary care and addiction medicine. This has included research examining the transfer of addiction treatment strategies from “specialty” settings to primary care and other general medical settings. His publications in this area include studies on the management of opioid withdrawal in primary care settings, opioid maintenance in primary care, and the use of naltrexone for treating alcohol dependence in primary care patients. He has been active in medical education on substance abuse both nationally and internationally and has served as the president of The Association for Medical Education and Research on Substance Abuse (AMERSA) and The American Board of Addiction Medicine (ABAM) and The Addiction Medicine Foundation.





Years In Practice


Affiliated With

Yale Medicine


Yale New Haven Hospital

789 Howard Ave
Primary Care Center
New Haven, CT 06519

Get Directions

Monday9:00 AM - 5:00 PM
Tuesday9:00 AM - 5:00 PM
Wednesday9:00 AM - 5:00 PM
Thursday9:00 AM - 5:00 PM
Friday9:00 AM - 5:00 PM
(203) 688-4516

Education & Training


Albany Medical College - Union University


University of Rochester;University of Rochester Medical Center


Yale School of Medicine

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