Minimally Invasive
CardioThoracic and Vascular
Surgical Specialists
Serving South Texas

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Specialized Procedures

Off-Pump Coronary Artery Bypass Graft (OP CABG)

Minimally Invasive Coronary Artery Bypass Graft

Minimally Invasive Heart Valve Repair

Minimally Invasive Heart Valve Replacement

Pacemaker & Defibrillator Insertion

Maze Procedure

Bloodless Cardiac Surgery

Cardiac and Thoracic Trauma Surgery

Minimally Invasive Lung Surgery


Mediastinal Surgery

Esophageal Surgery

Abdominal Aorta Aneurysm/Dissection Repair

Carotid Endarterectomy

Femoral Popliteal Bypass

Aortofemoral Bypass

Axillo-Femoral Bypass

Femoral Distal Bypass

Peripheral Vascular Surgery

Dialysis Access Vascular Surgery

Cardiothoracic & Vascular Surgery

Affiliated Hospitals

CHRISTUS Spohn Shoreline
- Corpus Christi

CHRISTUS Spohn South
- Corpus Christi

Corpus Christi Medical Center
- Doctor's Regional Hospital

Corpus Christi Medical Center
- Bay Area Heart Hospital

Harlingen Medical Center

Valley Baptist Hospital
- Harlingen

Valley Baptist Hospital
- Brownsville

Valley Regional Medical Center
- Brownsville

South Texas Health System
- McAllen Heart Hospital

Northwest Texas Healthcare System
- Amarillo

Cardiothoracic & Vascular Surgery

We are committed to providing state of the art cardiovascular care for your long-term health.


Kind words from our patients

"Dr. Mark Morales is an excellent surgeon and an excellent human being; his staff of doctors, nurses.... all magnificent human beings. They have been a blessing in my son Emilio's life and the whole family. All our love and eternal appreciation; God bless you."

- Yolly M.

Minimally Invasive Single Artery Bypass

"Dr. Mark Morales conducted heart surgery on me. He performed a single artery bypass (left coronary artery) and as part of the procedure he gained access through my left rib cage. This procedure was non invasive compared to going through my chest and recovered quickly going back to work in 27 days. My recovery has been completed as in that there were no after effects and I’ve experienced a significant increase in energy and my ability to be increasingly active. I’m sure Dr. Morales and his significant skill set added years to my life.I am exceedingly grateful for this and I am very glad there are surgeons such as Dr. Morales who are practicing and who are incredibly gifted so that we may all benefit."

- James A. Davis

"I have no words to express how grateful my family and I feel with Dr. Mark Morales, an excellent professional, an excellent human being, an excellent cardiologist. God bless you and your family.

Thank you doctor."

- Ana S.

"Excelente ser humano. Viviremos agradecidos con el Dr. Morales siempre. Gracias por todo el apoyo."

- Eduardo C.

Our Practice

Since  2007,  the skilled  surgeons of J. Mark Morales, MD, PA have performed over 1,000 cardiac, thoracic and vascular procedures per year in the Coastal Bend and Rio Grande Valley areas. Our surgeons have accomplished most coronary artery bypass procedures utilizing the off pump method. All heart valve procedures are preferentially achieved using a minimally invasive approach; allowing for a quicker recovery and minimizing patient pain. In addition, some patients are also candidates for coronary artery bypass utilizing the minimally invasive approach. The surgeons continuously employ the latest methods of cardiothoracic and vascular surgery for improved patient outcomes. 

Meet the Experts

J. Mark Morales, M.D., Cardiothoracic Surgeon

J. Mark Morales, M.D.

Certified by American Board of Thoracic Surgery

Mark R. Bielefled, M.D., Cardiothoracic Surgeon

Mark R. Bielefled, M.D.

Certified by American Board of Thoracic Surgery

Michail Magarakis, M.D., Cardiothoracic Surgeon

Michail Magarakis, M.D.

Certified by American Board of Thoracic Surgery

Jose Cruzzavala, M.D., Cardiothoracic Surgeon

Jose Cruzzavala, M.D.

Certified by American Board of Thoracic Surgery

J. Mark Morales, MD, PA is dedicated to providing you with the highest quality, cost effective medical care.

We accept all major insurance plans including, but not limited to:

- Medicare
- Blue Cross Blue Shield
- Cigna
- Humana
- United Healthcare
- Superior Health Plan
- Aetna
- Molina Healthcare
- Veterans Administration Plans
- Medicaid

Payment Plans:
Credit cards are accepted and payment plans are available. 

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    1224 Third Street, Suite 1
  • Corpus Christi, Texas 78404
  • Office: (361) 854-0201
  • Fax: (888)815-1254

  • 512 Victoria Lane, Ste. 16
    Harlingen, Texas 78550
    Office: (956) 372-1434
    Fax: (888) 815-1254
    1301 South Coulter St. Suite 204
    Amarillo, Texas 79106
    Office: (806)676-9383
    Fax: (888)815-1254
  • 110 E. Savannah Ave, Bldg A
    Suite 101-C
    McAllen, Texas 78503
    Office: (956)372-1434
    Fax: (888)815-1254 

  • 110 Plaza Santa Rosa
    Brownsville, Texas 78520
    Office: (956)372-1434
    Fax: (888)815-1254

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