• About Provider
  • Reviews

Gary Greenberg, MD, is board-certified in internal medicine, cardiology and electrophysiology. He joined the CMH/OHSU Cardiology Clinic in 2017 after 22 years of private practice in Portland. His medical interests include arrhythmias, syncope, pacemakers and defibrillators.

Prior to joining CMH, Dr. Greenberg served as the medical director for arrhythmia and pacemaker services at the University of New Mexico Medical Center and the Veterans Administration Medical Center in Albuquerque, N.M.; and for the electrophysiology laboratory, cardiology program, and cardiac rehab program at Portland Adventist Medical Center. He was also an assistant professor of medicine at the University of New Mexico School of Medicine and a clinical assistant professor of medicine for Oregon Health & Science University.

In his free time, Dr. Greenberg enjoys swimming, skiing, playing guitar, traveling and sailing.

Professional Memberships:

  • Oregon Medical Association
  • American College of Cardiology
  • Heart Rhythm Society


  • Cardiology



  • American Board of Internal Medicine, Cardiology, Electrophysiology


  • Medical School: University of Wisconson, Madison
  • Internship & Residency: Oregon Health & Science University (Portland, Ore.)
  • Fellowship: University of Utah (Salt Lake City, Utah)


  • English
  • German

Patient Reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions asked of patients in our nationally-recognized National Research Council Survey. Patients who are treated in outpatient or hospital environments may receive different surveys.

Responses are measured on a scale of 1 to 5 with 5 being the best score. Learn more about how star ratings are generated.

Ratings distribution

Patient Comments