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Dr. Mamillapalli is a compassionate cardiologist specializing in personal, evidence-based care with a passion for women’s health. She earned her undergraduate and medical degrees from the University of Connecticut, where she received the Leonard Tow Humanism in Medicine Award. She completed her Internal Medicine residency at the University of Minnesota and served veterans at the Minneapolis VA Hospital before training in General and Interventional Cardiology at Northwell Health in New York, where she was Chief Fellow. 

Board-certified in Internal Medicine, Cardiovascular Disease, Echocardiography, and Nuclear Medicine, she brings extensive expertise in cardiovascular procedures along with a strong focus on prevention and advocacy for women’s cardiovascular health. Patients value her empathy and patient-centered approach. Outside of medicine, she enjoys horseback riding, staying active, exploring Texas, and time with her family. 

John Sunew, MD, FACC, FSCAI, is a skilled cardiologist at Memorial Katy Cardiology Associates in Houston, Katy, Cypress and Fulshear, Texas.

Dr. Sunew is triple-board-certified in Interventional Cardiology, Cardiovascular Disease, and Nuclear Cardiology. He is listed among Top Doctors 2015 in H Texas Magazine and Houstonia Magazine. He was born in Connecticut and grew up in New York state. 

Dr. Sunew attended Amherst College in Amherst, Massachusetts, and went on to earn his medical degree at the State University of New York Health Science Center in Brooklyn, New York. He then completed his internal medicine residency and cardiology fellowship at The George Washington University Medical Center in Washington, DC. He fulfilled his interventional cardiology fellowship at Northwestern University in Chicago, Illinois.

Before moving to Katy, Texas, Dr. Sunew practiced interventional cardiology for ten years in northern Virginia. He held many leadership roles with the Inova Health System, including Medical Director of the Cardiac Catheterization Laboratory at Inova Alexandria Hospital and Chairman of the Inova Cardiology Quality Steering Committee. He was also Regional Leader for Northern Virginia in the Virginia Heart Attack Coalition. In addition, Dr. Sunew served as Assistant Professor for the Department of Internal Medicine, Virginia Commonwealth University School of Medicine Inova Campus. He was also involved in several clinical research trials and academic publications. 

Dr. Sunew can offer the latest and most innovative treatments in cardiology, interventional cardiology, and peripheral vascular disease. He provides expertise in complex coronary angioplasty procedures, peripheral arterial angioplasty, and transradial cardiac catheterization. His non-invasive skills include transesophageal echocardiography and nuclear cardiology.

Anil Odhav, MD, FACC, is an expert cardiologist at Memorial Katy Cardiology Associates in Houston and Katy, Texas.

Dr. Odhav was born in Zambia, Africa. After receiving his undergraduate degree from the University of Zambia, he attended the University of Tennessee in Chattanooga, where he completed his Internal Medicine residency and a year as Chief Resident and Clinical Instructor.

Dr. Odhav performed his cardiovascular training at the Medical College of Georgia in Augusta and joined Memorial Katy Cardiology Associates in January 2001. 

He is interested in all aspects of adult cardiology with a particular interest in invasive cardiology, nuclear cardiology, echocardiogram, hypertension, and peripheral vascular diseases. Certification was obtained from the American Board of Internal Medicine in 1995 for Internal Medicine and in 2000 for Cardiovascular Diseases. Dr. Odhav is a proud member of the American College of Cardiology and the Harris County Medical Society.

During Dr. Odhav's spare time, he enjoys traveling alongside his wife and their children. 

Yasser Al-Khadra, MD, FACC, is a highly trained cardiologist at Memorial Katy Cardiology Associates in Houston, Katy, and Cypress, Texas.

Dr. Al-Khadra is board certified in internal medicine, cardiology, nuclear cardiology and cardiac computed tomography. He completed his General Cardiology fellowship at Southern Illinois University School of Medicine in Springfield, Illinois. Then, went on for his Interventional Cardiology training at Wayne State University in Detroit, Michigan. During his fellowships, he was trained to perform high risk coronary procedures and chronic total occlusions.

Dr. Al-Khadra is well versed in multiple imaging modalities including PET scans, nuclear cardiology, cardiac computed tomography and echocardiography. He is skilled in complex coronary interventions, peripheral vascular interventions, patent foramen oval occlusion and management of pulmonary embolisms and deep vein thrombosis.

Dr. Al-Khadra has served as the director of study design and statistical analysis for the Cardiovascular Research Network research group and is well published with over 40 publications. His areas of interest in research include preventive cardiology, coronary artery disease, chronic total occlusions and transcatheter aortic valve replacement. His research has been presented in national and international conferences and collected many awards over the years.

Also, Dr. Al-Khadra is a professional musician who enjoys writing and arranging music on top of playing multiple instruments, the guitar being his main.

James Feldman, MD, FACC, is an exceptional cardiologist at Memorial Katy Cardiology Associates in Houston, Katy and Cypress, Texas. 

Dr. Feldman was born in Houston, Texas. He grew up in the Memorial area and attended Memorial High School. He received his bachelor’s degree in Economics with honors from The University of Texas at Austin.

Dr. Feldman completed his medical training at Creighton University School of Medicine. He completed his Internal Medicine and Cardiology Fellowship at Baylor College of Medicine in Waco, Texas.  

Dr. Feldman is a board-certified cardiologist with a strong interest in medical imaging. He is also board certified in Echocardiography with Level III training. He is a proud fellow of the American College of Cardiology. 

Board-certified in cardiovascular disease, echocardiology, and internal medicine, Dr. Feldman’s clinical interests include cardiovascular diseases and internal medicine. He also has a strong interest in medical imaging.

Outside of his practice, Dr. Feldman’s favorite activity is spending time with his family.

Amir Kashani, MD, MS, FACC, is a well-trained cardiologist at Memorial Katy Cardiology Associates in Houston, Katy, and Sealy, Texas.

Dr. Kashani grew up in Houston, Texas, and attended Second Baptist Middle School and High School. He completed his Internal Medicine training at Rochester General Hospital through the University of Rochester School of Medicine in New York, where he also served as Chief Resident and Clinical Instructor. He attended Yale University School of Medicine in New Haven, Connecticut, for his cardiovascular and electrophysiology training. Dr. Kashani also trained in Interventional Cardiology at Baylor College of Medicine in Waco, Texas.

Throughout his career, Dr. Kashani has been heavily involved in clinical cardiovascular research. Amidst his over 30 publications, he has numerous collaborations with the TIMI Group, Harvard School of Medicine, and Yale School of Medicine, Section of Epidemiology and Public Health. He is an invited author of several books, and he has been invited to present his research both nationally and internationally. Dr. Kashani currently continues his academic interests as a Baylor College of Medicine teaching faculty. 

Dr. Kashani remains active by enjoying a variety of sports. Also, he and his wife have a special interest in community service. Dr. Kashani is the President, Founder, and member of several charity organizations in Houston. One major focus of the charity organization that Dr. Kashani has established is providing health care to underprivileged children in Houston. 

Rajen Mehta, MD, FACC, is a skilled cardiologist at Memorial Katy Cardiology Associates in Houston and Katy, Texas. 

Born in Winnipeg, Canada, Dr. Mehta grew up in Houston, Texas, and graduated from Memorial High School. He attended the University of Texas at Austin, where he received his Bachelor of Arts in Biology and graduated on the Dean’s List. He continued to medical school at the University of Texas Medical Branch in Galveston and completed his residency in internal medicine at the University of Alabama at Birmingham. He furthered his training in cardiology at the Medical College of Georgia in Augusta, where he was trained in specialized invasive procedures and diagnostic imaging. He joined Memorial Katy Cardiology Associates in 1998.

Dr. Mehta has expertise in cardiology, including the evaluation of common cardiac complaints such as chest pain, shortness of breath, passing out, leg swelling, and palpitations. He has a particular interest in preventive cardiology, including management of high blood pressure and cholesterol disorders, as well as management of the disease after they have developed such circulatory problems of the legs, coronary artery disease, and heart failure. Dr. Mehta places special emphasis on patient education. Dr. Mehta is trained in special cardiac procedures, including coronary angiography and angioplasty, pacemaker insertion, and transesophageal echocardiography. His main research has been in cardiac imaging, and he has several publications on echocardiography.

Dr. Mehta’s personal interests include playing guitar and spending time with his wife, two daughters, and golden retriever.

George Mammen, MD, FACC, is a talented cardiologist at Memorial Katy Cardiology Associates in Houston and Katy, Texas. 

Dr. Mammen grew up in Kerala, India, and earned his medical degree at Trivandrum Medical College in Thiruvananthapuram, India. Moving to the United States to continue his education, Dr. Mammen completed a residency in internal medicine at South Baltimore General Hospital in Maryland and a cardiology fellowship at St. Luke’s Episcopal Hospital, Texas Heart Institute in Houston.

Dr. Mammen is board-certified in internal medicine and cardiology. His clinical interests include interventional cardiology and cardiovascular disease, with a particular focus on invasive procedures such as angioplasty, stent implantation, and pacemakers. He is trained in all aspects of adult cardiology, with an emphasis on coronary artery disease and heart failure. He joined Memorial Katy Cardiology Associates in 1982. 

Dr. Mammen is active in hospital and physician affairs and has served as Chief of Cardiology at Memorial Hermann Memorial City Hospital and Medical Director of the ICU at Memorial Hermann Katy Hospital. When not at the office, Dr. Mammen’s personal interests include tennis and skiing. He likes to spend his spare time with his wife and three children.

Dr. Samir George Ouais is a warm, detail-oriented endocrinologist and internist treating patients in Houston and the Woodlands, Texas, and the surrounding communities. He goes into full detail when communicating with his patients and applies a goal-driven approach to treatment. He also holds certification from the American Board of Internal Medicine in internal medicine and endocrinology, diabetes, and metabolism.

Originally from Syria, Dr. Ouais attended the University of Damascus to pursue his medical degree. He received fellowship training in endocrinology at MD Anderson in Houston.

Patients visiting Dr. Ouais can receive a full range of medical care. He treats issues including diabetes, thyroid problems, hirsutism, and endocrine-related causes of infertility. When he is not treating patients, Dr. Ouais enjoys traveling and spending time with his family.

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