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Dr. Michael Macris MD

Dr. Michael Macris MD

Thoracic Surgeon

Memorial Hermann Greater Heights Hospital
(713) 465-7979


A cum laude graduate of Harvard University, Dr. Michael Macris earned his medical degree from the Medical College of Georgia in Augusta. Following medical school, he was awarded a research fellowship investigating cardiac transplantation and artificial heart technology at the Texas Heart Institute (THI) in Houston. He then completed his residency in general surgery at The University of Texas Health Science Center at Houston (UTHealth) Medical School followed by a residency in thoracic surgery with Dr. Denton Cooley at THI.

Board certified in cardiovascular and thoracic surgery, by the America Board of Thoracic Surgery, Dr. Macris has practiced medicine in Houston since 1993. His clinical interests include Atrial Fibrillation and Maze Procedure (Atrial Fibrillation surgery), acquired heart disease, valve repair and replacement. He treats patients 18 years and older and speaks Greek.

Dr. Macris incorporates minimally invasive surgical techniques in both valve surgery and coronary artery bypass. He has been a leader in the development and use of off-pump coronary artery bypass and early adapter of endoscopic saphenous vein harvesting techniques. He is recognized in the medical profession for his participation in the advancement of surgical techniques that improve patient outcomes.

Widely published in his specialty, Dr. Macris is active as a speaker to numerous professional groups. He currently serves as the medical director of the Cardiovascular service line at Memorial Hermann Greater Heights Hospital and the medical director of the cardiovascular operating room at Memorial Herman Greater Heights Hospital.

Physician Details

Mon - Fri 9:00 AM - 5:00 PM
Medical Education
Medical College of Georgia School of Medicine, 1984
Internships & Residency
University of Texas at Houston-GME, 1991
University of Texas at Houston-GME, 1993
Clinical Interests
Atrial Fibrillation, Lung Cancer, Maze Procedure (Atrial Fibrillation surgery)
PCP Number
Cities Served
Alief, Barker, Bellaire, Houston, North Houston
ZIP Codes Served
77001, 77002, 77003, 77004, 77005, 77006, 77007


Physician Website

Insurance Accepted

  • Aetna (Most Benefit Plans)
  • Aetna Medicare
  • Amerigroup Star
  • Amerigroup Star Plus
  • Amerivantage
  • Blue Cross Blue Shield Texas
  • Cigna (Most Benefit Plans)
  • Community Health Choice Marketplace QHP
  • Humana Gold Plus HMO
  • Memorial Hermann Advantage HMO
  • Memorial Hermann Advantage PPO
  • Memorial Hermann Solutions
  • Multiplan
  • United Healthcare (Most Benefit Plans)

In The News

Videos of Dr. Macris

Minimally Invasive Cardiac Surgery (MICS) Online Presentation
Memorial Hermann Heart & Vascular Institute-Memorial City affiliated cardiovascular & thoracic surgeon Dr. Michael Macris discusses minimally invasive cardiac surgery (MICS).

Watch the video »

Floyd's Story - Coronary Artery Disease

Watch the video »

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