Peter Gregor, MD, FACC, FACP, FCCP - Owensboro Health

Skip to Content

Contact Information

Website: Heart Care

Schedule an Appointment

Call: 844-446-9663

Accepting new patients.


Peter Gregor

Peter Gregor, MD, FACC, FACP, FCCP

Specializing in Cardiology
  • One Health
Year joined staff:


  • English

Education & Training


McMaster University, Bachelor’s Degree in Biology
McMaster University Medical School, Medical Degree


Queen's University Hospital, Family Medicine
Kingston General Hospital, Internal Medicine


Kingston General Hospital, Cardiovascular Disease


Philosophy Of Care

Dr. Gregor enjoys fixing a patient’s health problems, especially when that helps make a difference in their quality of life.

“It's a little bit like engineering. You can really solve problems. I try very hard to talk to and get to know my patients. I try to find some kind of a link to make the patients unique. It's a good reminder of who the patient is, and there’s an element of (building) trust.”

Thoughts On Owensboro Health & The Owensboro Community

Dr. Gregor said he chose Owensboro Health not just because of the professional opportunity, but also because of the feel of the community.

“It's a wonderful opportunity. There's a need, and I like to feel needed. The hospital is absolutely beautiful, and I can recognize that there's a patient population with people who are sick and need doctors,” Dr. Gregor said. “It has a feel to it like my old hometown in southern Ontario. When I came here to interview, I recognized it and that feeling has only been reinforced.”


Dr. Gregor’s wife is a critical care nurse and together they have four children, including a doctor of psychology, a doctor of physical therapy, a special education teacher and a business manager. In his spare time, Dr. Gregor enjoys keeping physically fit, painting and volunteering with Rotary International.


Teaching or Professional Positions

  • July 2002 to current, Cardiology Teaching Faculty, Department of Medicine, Santa Clara Valley Medical Center, San Jose, California. Received Residents' Award for Teacher of the Year, June 2005.
  • September 1, 2006 to August 31, 2013. Clinical Assistant Professor (Affiliated) Stanford University  Department  of  Medicine (Cardiology)
  • March  2012. (Visiting  lecturer) Egbe Hospital, Egbe, Kogi, Nigeria   (Cardiology)
  • 2001-2002, Clinical Professor, Department of Cardiovascular Medicine, Joan C. Edwards  School of  Medicine,  Marshall  University,  Huntington,  West Virginia.
  • 2002-2004, Clinical Professor, Department of Medicine, West Virginia School of Osteopathic  Medicine,  Lewisburg,  West  Virginia.
  • 2001-2002, Lecturer for BMS Medical Imaging, on nuclear cardiology, to medical groups and hospital staffs in Illinois, California, Virginia, North Carolina, and West Virginia.
  • 1994, Clinical Supervising Physician, Education Program Associates, Nurse Practitioner Training  Program.
  • 1986-90, Clinical Supervising Physician, University of California, Davis, CA, Division  of  Family  Practice, Family Nurse Practitioner Program.
  • 1981-2001, CME lecturer, Gilroy, and Hollister, CA, Elkins and Logan, WV.
  • 1970-71, Teacher, Titcombe College, Sudan Interior Mission, Egbe, Nigeria, British High  School Curriculum, A level, Physics  and Biology.

Professional Memberships

  • American  College of  Cardiology, Fellow.
  • American  College of  Chest Physicians, Fellow.
  • American  College of  Physicians, Fellow.
  • American  Medical Association,  Member
  • Santa Clara  County Medical Association,  member
  • American  Society of  Echocardiography, Member
  • International  Society for Adult Congenital  Heart Disease,  Member
  • Adult  Congenital  Heart Association, Member

Board Certified

  • Cardiovascular Disease, certified 1987 to present.
  • Internal Medicine, certified 1980 to present.
  • Family Medicine, 1981, 1992, deliberately allowed to expire,  2000.
  •  U.S.  Nuclear  Regulatory  Commission  License  in Nuclear  Cardiology,  2002.
  • National  Board  of Echocardiography, certified  2009 to 2019
  • Board eligible in Adult  Congenital Heart Disease,   2015.


  • California, C39417  (exp: 03/16)
  • Hawaii, 03941  (exp: 01/16)



  • Hemodynamic Effects Of Intravenous Disopyramide Alone And In Combination With Propranolol In Patients WithAtypical Chest Pain, Thadani, West, Manyari, Gregor,  Parker:  Clinical Research,  27, 2,  1979, p280A.
  • Hemodynamic Effects Of Disopyramide At Rest And During Exercise In Normal Subjects, Thadani, Manyari, Gregor, Olowoyeye, et al: Cathet. Cardiovasc Diagn, 1981,  7,  1,  p27.
  • Acute Spasm Of Vein Bypass Graft And Recipient Artery In The Immediate Post Operative Period , Dye, Gregor, Murphy: Texas Heart Institute Journal, Vol 11, June 1984,  p198.
  • Meta-Analysis: Cardiovascular Events Associated with Nonsteroidal Anti­ inflammatory Drugs, Salpeter, Gregor, Ormiston, Whitlock, Raina, Thabane, Topal: American Journal of Medicine,  2006,  119,   552-559.
  • Don't Give In To Heart Failure