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Language(s) Spoken

English; Persian; Spanish

Joined Kelsey-Seybold

June 2017

Accepting New Patients?


​​​​​Professional Background

After completing his residency in 2013, Dr. Massumi began a fellowship program in cardiovascular diseases at the Texas Heart Institute at Baylor St. Luke’s Medical Center, which he completed in 2016.  He followed with a dedicated advanced fellowship in interventional cardiology at the Texas Heart Institute, which he completed in 2017. Between 2008 and 2017, Dr. Massumi was involved in several research projects, including: to perform BAV (balloon aortic valvuloplasty) or not, that is a TAUR (transcatheter aortic valve replacement) question; effect of botulinum toxin on inducibility and maintenance of atrial fibrillation in ovine myocardial tissue; endovascular treatment of superior vena cava syndrome secondary to pacemaker placement using balloon in balloon venoplasty and palmaz stent; prediction of imminent endocardial perforation via specific alterations of measurable and calculable variables at the catheter tip/endocardial interface; and the outcome of breast reduction surgery on quality of life regardless of amount resected or patient weight.
Dr. Massumi joined Kelsey-Seybold in June 2017, where he previously worked in the Lipid Clinic for a year (in 2004) between completion of his undergraduate degree in biology and the start of medical school, researching patient charts and conducting patient interviews.​

Hobbies and Interests

Dr. Massumi enjoys cooking, football, tennis and music.

Fun Facts

Before committing to medical school, Dr. Massumi seriously considered attending culinary school. His guilty pleasure starts with dark chocolate, but doesn’t end there he says.
The most exotic place Dr. Massumi has visited is Grenada, W.I. and the most interesting is Brooklyn, N.Y. He says the best advice he’s ever received is to “treat every patient you meet as if they were a member of your family.”​​

​The successful physician-patient relationship achieves optimal results when built on knowledge and trust. I plan to empower my patients with comprehensive understanding of their medical conditions and treatment options. I aim to provide every patient the level of medical care that is held to the highest standards by the most recent guidelines.

​​​​​​​​​​​​By Phone

Our Contact Center is here to serve you, 24 hours a day, 7 days a week.


Awards & Recognitions

Michael E. DeBakey Veterans Affairs Medical Center Internal Medicine Resident of the Month, 2012; Ben Taub General Hospital Internal Medicine Intern of the Month, 2010; Clinical Pathologic Correlation Letter of Excellence, 2008


  • Effect of botulinum toxin on inducibility and maintenance of atrial fibrillation in ovine myocardial tissue.  Nazeri A, Ganapathy AV, Massumi A, Massumi M, Tuzun E, Stainback R, Segura AM, Elayda MA, Razavi M.  Pacing and Clinical Electrophysiology.  2017 Jun;40(6):693-702. doi: 10.1111/pace.13079.
  • To BAV or not to BAV, that is a TAVR question.  Massumi M, Krajcer Z.
  • Catheter and Cardiovascular Interventions. 2016 Nov 15;88(6):986-987. doi: 10.1002/ccd.26848.
  • Endovascular Treatment of Superior Vena Cava Syndrome via Balloon-in-Balloon Catheter Technique with a Palmaz Stent.  Shatila W, Almanfi A, Massumi M, Dougherty KG, Parekh DR, Strickman NE. Texas Heart Institute Journal. 2016 Dec 1;43(6):520-523. doi: 10.14503/THIJ-15-5479
  • Contact-force recovery can predict cardiac perforation during radiofrequency ablation. Nazeri A, Ganapathy A, Massumi A, Massumi M, Constantine G, Raz S, Razavi M.  Pacing and Clinical Electrophysiology.  2014 Sep;37(9):1129-32​