Our Team

Dr. Ira H. Lieber

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M.D., F.A.C.C.

Board Certification:

• • • Internal Medicine/American Board of Internal Medicine
    • Cardiovascular Disease/Fellow of American College of Cardiology
    • Interventional Cardiology
    • National Board of Medical Examiners
    • FLEX Certification

Medical Education:

Drexel/Hahnemann Medical College

Fellowship:

University of California at Irvine/Research Fellowship Cardiology-Cedars-Sinai/UCLA

Dr. Ira H. Lieber, M.D., F.A.C.C

Dr. Lieber is a cardiologist specializing in noninvasive and interventional cardiology with interests in peripheral vascular disease, coronary stents, and chronic venous disease/insufficiency.

Dr. Lieber grew up in New York and attended the University of Rhode Island, graduating summa cum laude in 1975. He then moved to Philadelphia for medical school at Drexel/Hahnemann University, followed by an internship and residency at the University of Texas at Houston. Dr. Lieber then was selected for one year of clinical research fellowship at the prestigious Cedars-Sinai Medical Center in Los Angeles, California under the auspices of P.K. Shah, M.D., Jeremy Swan, M.D., and William Ganz, M.D. There he did cardiology research and published a chapter in clinical therapeutics.

After completion of his research fellowship, he did a two-year clinical fellowship at the University of California at Irvine under the renowned Walter Henry, M.D. After completing his fellowship, he returned to Houston to establish the Texas Cardiology Associates at Houston. He has had faculty appointments at the University of Texas as a clinical assistant-professor involved in training the cardiology fellows.

Dr. Lieber practices using the latest cutting-edge techniques of minimally invasive cardiology as well as chronic venous disease. He is well-versed in chest pain syndrome, coronary artery detection, heart attack treatments, nuclear cardiology, echo cardiography, peripheral vascular disease, coronary stenting, congestive heart failure, and arrhythmias. He has published articles in the past in reference to cardiology, contributed a chapter in clinical therapeutics, and is actively involved in cardiovascular research, being a principal investigator in multiple research clinical trials, including cholesterol, diabetes, heart failure, atrial fibrillation, heart attacks, etc. He was one of the authors in the landmark Acuity trial.

Dr. Lieber has a significant interest in vein disease which is the most underdiagnosed disease in cardiology, yet the 3rd most disabling. He is a National Instructor for Covidien to train doctors in doing ablation therapy. Dr. Lieber is available for all treatments of cardiac symptoms and cardiac diseases as well as second opinions.

During his free time, Dr. Lieber enjoys traveling, exercising, and playing golf.

Dr. Shakeel Uddin

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M.D., F.A.C.C.

Board Certification:

• Cardiovascular Disease

Medical Education:

Sind Medical College/University of Karachi

Fellowship:

The University of Texas Medical School at Houston

Dr. Shakeel Uddin, M.D., F.A.C.C

Dr. Shakeel Uddin is a board certified cardiologist who has completed extensive training in different aspects of cardiology. He completed his internship and residency tenures at Tulane Medical School in New Orleans Louisiana, where he was awarded as best teaching resident. After this, he joined a research fellowship training program at the National Institute of Health in Bethesda Maryland. During two years of fellowship, Dr. Uddin had an opportunity to participate in various research protocols especially hibernating and stunned myocardium under the world renowned researchers like Drs. Robert O. Bonow and S. Ward Casscells. During his time at the NIH, Dr. Uddin was able to augment his comprehension regarding various pathophysiologic processes of cardiovascular diseases especially coronary artery disease, congestive heart failure, valvular heart disease and hypertrophic cardiomyopathy. This very aspect of his training background enables him to have a clear understanding of a patient’s clinical presentation which assists him tremendously in the formulation of practical diagnostic and therapeutic plans.

After the completion of his research fellowship Dr. Uddin completed a fellowship in cardiovascular disease at the University of Texas Medical School at Houston where he was trained by his mentors Drs. James Willerson, Richard Smalling and Lance Gould. During his clinical fellowship, Dr. Uddin accomplished his skills in invasive and non-invasive cardiology and wide spectrum of cardiovascular related maladies.

Dr. Uddin has been practicing in North Houston since 1995. Besides tackling the issues in acute cardiovascular situations like heart attack, cardiogenic shock, and various life threatening arrhythmias, Dr. Uddin’s principal focus is on preventive cardiology. He believes in taking care of the risk factors such as hypertension, diabetes mellitus II, hypercholesterolemia, obesity and tobacco abuse, he can make a great difference for the eventual outcome of a patient’s condition.

Dr. Uddin is fluent in English and Urdu.

In his free time, Dr. Uddin enjoys spending time with family and friends. Dr. Uddin also enjoys philosophical writing.

Dr. Syed A. Raza

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M.D., F.A.C.C, F.S.C.A.I.

Board Certification:

• Internal Medicine
• Cardiovascular Disease
• Interventional Cardiology
• Nuclear Cardiology
• Comprehensive Echocardiography
• Cardiac Computed Tomography

Medical Education:

Dow Medical College

Fellowship:

Virginia Commonwealth University

Dr. Syed A. Raza, M.D., F.A.C.C, F.S.C.A.I.

Dr. Raza is a board certified interventional cardiologist who joined the group in 2013 after finishing his training in Virginia. He has extensive training in all aspects of cardiovascular care including non-invasive and invasive cardiovascular evaluation, advanced cardiovascular imaging and peripheral arterial and venous diseases.

Dr. Raza started his medical education at Dow Medical College in Karachi, Pakistan, which is considered one of the oldest and most prestigious medical schools in Pakistan. He continued his internship and residency in Internal Medicine at Michigan State University in East Lansing, Michigan. Following his residency training, Dr. Raza joined Virginia Commonwealth University in Richmond, Virginia as faculty and worked as an internist/hospitalist for 3 years at the University Hospital.

Dr. Raza completed his fellowship training in general cardiology at Virginia Commonwealth University where he was trained in all aspects of cardiovascular care by world-renowned faculty. Dr. Raza then pursued additional sub-specialty training in interventional cardiology under the tutelage of one of the pioneers of interventional cardiology Dr. George Vetrovec. During his interventional cardiology fellowship, he received extensive training in coronary and peripheral vascular interventions including complex coronary interventions and use of hemodynamic support devices for high-risk coronary interventions. In addition, he received specialized training in performing cardiac catheterization thru the small blood vessel in wrist (radial artery) in addition to conventional method of performing it thru the groin blood vessels.

Dr. Raza is board certified in Internal Medicine, Cardiovascular Diseases, Interventional Cardiology, Nuclear Cardiology, Cardiac Echocardiography and Cardiac CT. In addition, he has advanced training in Cardiac MRI and vascular ultrasound. Dr. Raza prides himself in being one of the few cardiologists with maximum possible board certifications and would like to provide the best possible care to his patients.

Dr. Raza has special interest and expertise in treating varicose veins, spider veins and venous ulceration. In addition, he is also involved in training new physicians who are interested in treating venous disorders.

In addition to English, Dr. Raza also speaks fluent Urdu and Hindi. During his free time he loves spending time with his wife and two kids.

Available for consultation at our main office in Kingwood, TX and our satellite office in Livingston, TX.

Dr. Xianfeng (Greg) Wen

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M.D., F.A.C.C

Board Certification:

• Internal Medicine
• Cardiovascular Disease
• Comprehensive Echocardiography

Medical Education:

Shanghai Medical College of Fudan University (formeraly Shanghai Medical University), Shanghai, China

Fellowship:

The University of Texas Medical Branch at Galveston

Dr. Xianfeng (Greg) Wen, M.D., F.A.C.C

Dr. Wen is a cardiologist who joined the group in 2016 after finishing his cardiovascular fellowship training at the University of Texas Medical Branch at Galveston. He severed as the chief fellow prior to joining Texas Cardiology Associates of Houston. He has extensive training in different aspects of cardiovascular care including non-invasive and invasive cardiovascular evaluation, advanced cardiovascular imaging and peripheral arterial and venous diseases.

Dr. Wen started his medical education at Shanghai Medical University (now Shanghai Medical College of Fudan University) in Shanghai, which is one of the most prestigious medical schools in China. After earning his medical degree and Doctor Degree of Philosophy in Biology, Dr. Wen came to the US as a postdoctoral research fellow. His research focused on atherosclerotic process in human arteries and TNF signaling pathways in human cells. Dr. Wen has published more than 10 scientific papers in a variety of journals. He finished his residency training in Internal Medicine and fellowship training in cardiovascular disease at the University of Texas Medical Branch at Galveston, the oldest medical school in the state of Texas.

Dr. Wen practices precision medicine. He believes that medical decisions and practices should be tailored to the individual patient. In addition to English, Dr. Wen also speaks fluent Mandarin.

During his free time he loves spending time with his wife and two kids. He enjoys cooking, traveling and playing tennis.

Dr. Robert L. Salazar

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M.D., F.A.C.C.

Academic Appointment:

• Director of Cardiovascular Research, Kingwood Medical Center
• Core Clinical Faculty for Graduate Medical Education for Cardiology Fellowship Program at Kingwood Medical Center
• Medical Director for Chest Pain Committee at Memorial Hermann Northeast
• Medical Director of Non-Invasive Cardiology Lab at Memorial Hermann Northeast
•  Director of Cardiac Rehab at Memorial Hermann Northeast
• Co-Chair of Cardiology Clinical Programs Committee CV Service Line for Memorial Hermann System

Board Certification:

• Internal Medicine
• Cardiology
• Echocardiology
• Nuclear Cardiology
• Interventional Cardiology

Medical Education:

• Baylor College of Medicine
• Harvard Medical School

Fellowship:

Texas Heart Institute

Dr. Robert L. Salazar, M.D.,F.A.C.C.

About Dr. Robert L. Salazar

Robert Salazar, M.D., F.A.C.C is an experienced, compassionate and meticulous interventional cardiologist

Dr. Salazar attended Baylor College of Medicine and completed his internship and residency at Harvard University. He further specialized in cardiology followed by interventional and structural cardiology at the Texas Heart Institute in Houston.

He is board certified in internal medicine, cardiology, echocardiology, nuclear cardiology and interventional cardiology. His expertise includes advanced coronary intervention, peripheral vascular disease and structural heart disease. He is honored to be one of few cardiologists trained to perform TAVR (transcatheter aortic valve replacement), EVAR (endovascular aneurysm repair) for abdominal aortic aneurysm, carotid stent placement, ASD (atrial septal defect) and PFO (patent foreaman ovale) closure.

Dr. Salazar’s team at Texas Cardiology Associates of Houston is dedicated to providing outstanding care. All patients are provided with comprehensive, state of the art screening services and education for long term health. He is committed to improving his patients quality of life through education, prevention and management of cardiovascular disease.

Outside of the office, Dr. Salazar’s interests include staying up to date with the latest technology. He also enjoys traveling and spending time with his wife and children.

Dr. Mohamed Faher Almahmoud

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M.D., F.A.C.C.

Board Certification:

• Internal Medicine
• Cardiovascular Disease
• Nuclear Cardiology
• Echocardiography
• Cardiac Computed Tomography
• Registered physician in Vascular Interpretation (RPVI)

Medical Education:

University of Aleppo / American University of Beirut / Suny Downstate Medical Center

Fellowship:

University of Texas Medical Branch (UTMB), Glaveston Medical University of South Carolina (MUSC), Charleston

Dr. Mohamed Faher Almahmoud, M.D., F.A.C.C.

Dr. Almahmoud is a board-certified cardiologist specialized in general and interventional cardiology with interest in coronary artery disease, peripheral vascular disease and valvular/structural heart disease.

Dr. Almahmoud has expertise in clinical research with interests in weight loss, atrial fibrillation, heart failure, valvular heart disease, atherosclerosis and hyperlipidemia (high cholesterol). He completed two years of NIH sponsored clinical research fellowship and participated in several landmark clinical trials targeting atherosclerosis and ischemic heart disease.

His expertise includes advanced coronary interventions, peripheral vascular disease and structural/valvular heart disease. Including a variety of minimally invasive trans-catheter procedures for patients with deep venous thrombosis, pulmonary embolism, aortic stenosis (TAVR and aortic valvuloplasty), mitral regurgitation (MitraClip), atrial septal defect (ASD), patent foramen ovale (PFO), and hypertrophic cardiomyopathy (HOCM).

He is also trained on advanced mechanical support devices for patients with acute heart failure and cardiogenic shock. Click here for a list of his publications.

Dr. Almahmoud loves to spend his free time playing sports and spending time with his family.

Dr. Marloe Prince

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M.D., F.A.C.C., F.S.C.A.I.

Board Certification:

• Interventional Cardiology
• Cardiovascular Disease
• Internal Medicine

Medical Education:

Meharry Medical College

Fellowship:

Ochsner Clinic Foundation

Dr. Marloe Prince, M.D., F.A.C.C., F.S.C.A.I.

Dr. Prince completed his Cardiovascular Disease and Interventional Cardiology fellowships at Ochsner Clinic Foundation in New Orleans, LA. He completed an additional year of training in structural heart procedures, also at Ochsner. He is committed to advancing the field of cardiology and his clinical research has been published in many peer-reviewed journals including the Journal of the American College of Cardiology (JACC), the American Journal of Cardiology (AJC), and Catheterization & Cardiovascular Interventions (CCI). He has also contributed to a book chapter in Debulking in Cardiovascular Interventions and Revascularization Strategies (See publications).

He is certified by the American Board of Internal Medicine in the subspecialties of Internal Medicine, Cardiovascular Disease, and Interventional Cardiology. Dr. Prince is highly skilled at performing the following procedures: coronary angioplasty (including high-risk cases), heart assist devices (e.g., Impella and TandemHeart), peripheral interventions (including carotid and renal stenting), structural heart procedures (e.g., transcatheter aortic valve replacement (TAVR), Mitraclip, Watchman, Atrial Septal Defect (ASD) closure, and Patent Foramen Ovale (PFO) closure), and venous ablations. Dr. Prince uses his breadth of knowledge and experience to deliver compassionate and comprehensive cardiovascular care.

He earned his bachelor's degree from The University of Oklahoma and his medical degree from Meharry Medical College. His post-graduate training includes Internal Medicine residency at The Jewish Hospital in Cincinnati, Ohio.

In his spare time, Dr. Prince enjoys fitness, sports, traveling, and spending time with his wife and daughter.

Dr. Willie E. Robinson III

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M.D., F.A.C.C., F.S.C.A.I.

Board Certification:

• Interventional Cardiology
• Cardiovascular Disease
• Internal Medicine

Medical Education:

Indiana University

Fellowship:

University of South Florida

Dr. Willie E. Robinson III, M.D., F.A.C.C., F.S.C.A.I.

Dr. Willie E. Robinson III is a native of Detroit, Michigan.  He completed his medical degree at Wayne State University School of Medicine in Detroit.  Dr. Robinson completed his internship and residency in Internal Medicine at Indiana University in Indianapolis, Indiana and his cardiology and interventional cardiology fellowships at the University of South Florida in Tampa, Florida. 

He is board-certified in internal medicine, cardiovascular disease, and interventional cardiology. 

His clinical interests include coronary disease, peripheral vascular disease, and structural heart disease.

Dr. Okechukwu N. Mgbemena

Board Certification:

• Internal Medicine – ABIM
• Board Certification in General Cardiology 
• Board Certification in Adult Echocardiography
• Board Certification in Nuclear Cardiology
• Registered Physician in Vascular Interpretation (RPVI)

Medical Education:

• University of Alabama School of Medicine

Internal Medicine residency:

• Emory University 

Fellowship:

• University of Florida, Jacksonville (General Cardiology Fellowship)
• Dartmouth Hitchcock Medical Center (Interventional Cardiology Fellowship)

Dr. Okechukwu N. Mgbemena is an accomplished physician specializing in interventional cardiology and most recently serving as an Instructor at Dartmouth Hitchcock Medical Center. He completed his Interventional Cardiology Fellowship at Dartmouth Hitchcock Medical Center and his general cardiology training at University of Florida, Jacksonville. His internal medicine residency was at Emory University. Dr. Mgbemena holds his B.Sc. in Chemistry, graduating Summa Cum Laude. 

His leadership roles include serving as a GMEC representative in the Department of Cardiology and as a Global Health Scholar at Emory with a commitment to diversity and representation in medicine.  

Dr. Mgbemena’s dedication to patient care and education continues to inspire those around him. In his free time, you will find him exploring new music while alternating between running and strength training or whipping up a new recipe in the kitchen.

Dr. Mohammad Ahmad Khan

Board Certification:

• American Board of Internal Medicine (#429665)
• National Board of Echocardiography (#2023-10001597) - 95th percentile
• Certification Board of Nuclear Cardiology

Medical Education:

• F.M.H. College of Medicine and Dentistry

Fellowship:

• University of Arizona Phoenix

Dr. Mohammad Ahmad Khan is a general cardiologist renowned for his expertise in heart failure, diabetes, and advanced cardiac imaging. With extensive training and a commitment to patient care, Dr. Khan is an exceptional physician in his field, holding multiple board certifications and consistently being recognized for his excellence in both clinical practice and academic contributions.

Medical Education:

Dr. Khan completed his medical education at F.M.H. College of Medicine and Dentistry, Lahore, Pakistan, where he laid the foundation for his future career in cardiology. He further honed his skills during his residency at Flushing Hospital Medical Center, NY; where he was recognized for his dedication with multiple awards and was the chief resident in his final year. His passion for Cardiology led him to pursue advanced training through a fellowship at the University of Arizona Phoenix – Banner University Medical Center, AZ. 

Dr. Khan is board-certified in multiple specialties like Internal Medicine, Cardiology, Echocardiography and Nuclear Cardiology, underscoring his expertise and commitment to continuous learning. These certifications reflect Dr. Khan's broad knowledge base and proficiency in both the clinical and diagnostic aspects of Cardiology, ensuring that his patients receive the highest level of care.

In addition to his clinical work, Dr. Khan is involved in medical research, particularly focusing on heart failure and the intersection of diabetes with cardiovascular health. His research contributions have earned him recognition, including international recognition for work on patients with diabetes and heart disease. Dr. Khan has published over 30 peer-reviewed articles in prestigious journals, making significant contributions to the understanding of heart failure, diabetes and its impact on heart disease, and other cardiovascular conditions. His research continues to influence and inspire fellow clinicians and researchers in the field.

Driven by a passion for improving the lives of his patients, Dr. Khan is dedicated to advancing cardiovascular medicine through his practice, research, and teaching. He remains at the forefront of the latest medical advancements, using cutting-edge techniques to provide exceptional care tailored to the unique needs of each patient. With a combination of clinical excellence, academic prowess, and a compassionate approach to care, Dr. Mohammad Ahmad Khan is an invaluable asset to the medical community and to the countless patients whose lives he touches.

Dr. Omar Hadidi

Certifications

• Board-Certified in Internal Medicine
• Board-Certified in Cardiovascular Disease
• Board-Certified in Interventional Cardiology

Education & Training

• Medical School: McGovern Medical School at UTHealth, Houston, TX
• Residency: Internal Medicine, UT Southwestern Medical Center, Dallas, TX
• Fellowships: UTHealth, Houston, TX

Dr. Omar Hadidi is a board-certified interventional cardiologist specializing in coronary and peripheral vascular interventions, non-invasive cardiac imaging, heart failure management, cardiac rehabilitation, and preventive cardiology.

Known for his compassionate and personalized approach, Dr. Hadidi believes in treating every patient with dignity and developing individualized care plans tailored to each patient's unique needs. His passion for cardiology stems from the opportunity to make an immediate, life-changing impact for his patients — and to help them achieve longer, healthier lives through both advanced therapies and preventive care.

Outside of his practice, Dr. Hadidi is an avid sports enthusiast who enjoys playing basketball, tennis, and golf. He also cherishes spending quality time with his wife and children.

Elizabeth Wright

Elizabeth Wright is a Certified Family Nurse Practitioner who specializes in cardiology, including providing preventative care. With a board certification from the American Academy of Nurse Practitioners National Certification Board and a background in hospital and acute care settings, she is experienced at facilitating complex patient care, demonstrating outstanding clinical judgment skills, and maintaining strong relationships with patients.

She takes the time to listen to her patients’ medical goals and needs and to treat them holistically as people, rather than simply managing their diagnosis. Patients value Mrs. Wright for being accessible, straightforward, and real.

Mrs. Wright was born in New York and raised in Savannah, Georgia. After graduating from nursing school in Las Vegas, Nevada, she practiced as a nurse in Las Vegas, Baltimore, and Savannah, with an emphasis on Cardiology as well as acute inpatient and out patient care. Mrs. Wright moved to Texas in 2021. She lives in Humble with her husband and two children. In her free time, she enjoys traveling, attending her children's various sports activities, and spending quality time with her family.

Christin Touchet

Nurse Practitioner
MS, APRN, NP-C, ACNPC-AG, CMC

Christin “Chris” Touchet is a board-certified nurse practitioner who joined Dr. Raza at Texas Cardiology Associates in 2023. She has been an advanced practice registered nurse in the North Houston area since 2010. Chris has specialized in cardiovascular medicine for over 12 years and has worked with Dr. Raza and numerous other cardiologists in the hospital setting for the past 10 years. Prior to practicing in cardiology, Chris was a primary care provider in Kingwood.

Chris started her nursing education in Lafayette, Louisiana at the University of Louisiana where she earned her Bachelor of Science in Nursing, graduating with honors. She practiced as an intensive care nurse for 10 years in the Texas Medical Center prior to completing her advanced practice nursing education. Chris graduated from Texas Woman’s University in 2010 with her Master of Science in Nursing and certified as an Adult Nurse Practitioner. In 2015, she completed a Post-Master of Science in Nursing Certification and certified as an Adult Gerontology Acute Care Nurse Practitioner. She also holds a specialty certification in Cardiac Medicine. 

After spending much of her early nursing career in medical and surgical intensive care units, Chris became enthusiastic in caring for those with cardiovascular disease. She has extensive knowledge as a nurse practitioner managing patients with complex cardiac conditions. Her passion for cardiology is also driven by her son and husband, both of whom have congenital heart disease and have undergone open heart surgeries. She is committed to helping patients improve their cardiovascular and overall health through education, prevention, risk factor modification, and quality care. 

Chris loves spending time with her husband and three children.  In her spare time she enjoys running, fitness, camping, hiking and reading.