Our Researchers

Farhana T. Hafeez

President and Owner

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Dr. Umer Hafeez

Director of Research​

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Dr. Salman Malik, MD- Cardiologist

Denton, Texas

Principal Investigator with TPMRG since 2012, Dr. Salman Malik is a cardiologist in Denton, Texas and is affiliated with multiple hospitals in the area, including St. Mary’s Healthcare-Amsterdam and Grandview Medical Center-Birmingham. He received his medical degree from King Edward Medical University and has been in practice for more than 20 years. He is currently licensed to practice medicine in Texas, New Mexico, and Kansas.
Dr. Malik specializes in diagnoses and treatment of heart disease, such as congenital heart defects, coronary artery disease, heart rhythm disorders and heart failure, as well as, general medical disease management.

Dr. John V. Jayachandran, MD-Cardiologist

Fort Worth, Texas

Principal Investigator with TPMRG since 2019, Dr. John V. Jayachandran is a cardiologist in Fort Worth, Texas and is affiliated with multiple hospitals in the area, including Baylor Scott and White Heart and Vascular Hospital-Dallas and Baylor Scott and White All Saints Medical Center–Fort Worth. He received his medical degree from Christian Medical College Vellore and has been in practice for more than 20 years. Dr. Jayachandran specializes diagnoses and treatment of heart disease, such as congenital heart defects, coronary artery disease, heart rhythm disorders and heart failure. His subspecialities include, General Cardiology, Adult Congenital Heart Disease, Cardiac Electrophysiology, Interventional Cardiology, as well as, management of general medical disease.
Dr. Jayachandran maintains a comprehensive practice in this specialized field by continuing to be involved in academics, ongoing research, teaching, and involvement in the editorial review process for two of the most prestigious medical journals in his field. He continues to write invited Editorial comments in major journals in his field.

Dr. Muhammad Asim, MD-Gastroenterologist

Decatur, TX

Principal Investigator with TPMRG since 2019, Dr. Muhammad Asim is board certified in Gastroenterology by American board of internal medicine. He completed an internal medicine internship at University of South Dakota, Sioux Falls, SD and internal medicine residency at University of Oklahoma, college of medicine, Tulsa, OK in 1997. He then practiced internal medicine for 8 years. In 2006 he went to University of Tennessee at Memphis, TN for gastroenterology fellowship and is now practicing gastroenterology and hepatology at Wise Health System, Decatur, TX. Dr. Asim has more experience with Pancreatic Disease, Esophageal Disorders, and Liver Disease than other specialists in his area. He is affiliated with medical facilities such as Baylor Medical Center At Trophy Club and Baylor Scott & White Surgical Hospital.
Dr. Asim performs diagnostic and therapeutic upper and lower endoscopies, ERCP for liver and pancreatic diseases, small bowel capsule endoscopy, esophageal pH studies with Bravo probe etc. Dr. Asim specializes in diagnoses and treatment of digestive disorders, such as stomach pain, ulcers, reflux, constipation and Crohn’s disease.

Dr. Michael Tran, DPM- Foot and ankle medicine and surgery

Arlington, Texas

Principal Investigator with TPMRG since 2014, Dr. Michael V. Tran, DPM, is a board-certified podiatrist and wound care specialist.
Dr. Tran completed his undergraduate studies at Texas Christian University in Fort Worth, Texas. After graduating in 1996, he enrolled in Dr. William M. Scholl College of Podiatric Medicine, located in North Chicago, Illinois. Dr. Tran also completed a three-year foot and ankle medicine and surgery residency in Pennsylvania and Ohio, where he treated thousands of complex foot and ankle disorders. He later sought advanced training in ankle arthroscopy, foot and ankle reconstruction, trauma, and complex deformity correction utilizing the Ilizarov External Fixation Method—used to treat a breadth of bone and soft tissue problems in patients.
With 16 years of experience, Dr. Tran uses a broad range of innovative foot and ankles treatments, from bunion surgery and wound ulcers to stem cell therapy and foot deformities. Despite working on extremely complex cases, Dr. Tran treats every patient with the utmost care and respect.
Dr. Tran is always searching for new techniques to treat his patients and shorten their recovery time. Dr. Tran created a new stem cell therapy technique for bunion surgery that leaves patients with minimal scarring.

Dr. Sadaf Mazhary

Clinical Research Coordinator

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Dr. Usman Asaf

Clinical Research Coordinator

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