Dr. George M. Nassar, MD, FACP, FASN

Expert Publications

• Images in clinical medicine. Brown tumor in end-stage renal disease.
• Clotted arteriovenous grafts: a silent source of infection.
• Reciprocal regulation of LTA(4) hydrolase expression in human monocytes by gamma-interferon and interleukins 4 and 13: potential relevance to leukotriene regulation in glomerular disease.
• Infectious complications of the hemodialysis access.
• Occult infection of old nonfunctioning arteriovenous grafts: a novel cause of erythropoietin resistance and chronic inflammation in hemodialysis patients.
• Infectious complications of old nonfunctioning arteriovenous grafts in renal transplant recipients: a case series.
• Presence of a failed kidney transplant in patients who are on hemodialysis is associated with chronic inflammatory state and erythropoietin resistance.
• Salvage of a severely dysfunctional arteriovenous fistula with a strictured and occluded outflow tract.
• What should nephrologists do to maximize the use of arteriovenous fistulas?
• Endovascular treatment of the "failing to mature" arteriovenous fistula.
• Intravenous methoxy polyethylene glycol-epoetin beta for haemoglobin control in patients with chronic kidney disease who are on dialysis: a randomised non-inferiority trial (MAXIMA).
• Postdialysis outcomes associated with consistent anemia treatment in predialysis patients with chronic kidney disease.
• Endovascular management of the "failing to mature" arteriovenous fistula.
• Preventing and treating inflammation: role of dialysis access management.

Media Releases

Get to know Nephrologist Dr. George M. Nassar, who serves patients in Houston, Texas.

Well liked by his patients who find him personable, attentive, caring, effective, and professional, Dr. Nassar is a nephrologist at The Kidney Institute in Houston, Texas. Collectively, he and his colleagues provide reputable inpatient and outpatient nephrology services in the Texas Medical Center and in North Houston and The Woodlands.

Trained in all aspects of general Internal Medicine and nephrology, Dr. Nassar has 25 years of experience in managing acute and chronic kidney disease, polycystic kidney disease, diabetic kidney disease, electrolyte abnormalities, lupus nephritis, fluid overload states, hypertension, kidney stone disease, dialysis, and kidney transplantation. In addition, he has gained an incredible amount of expertise in interventional aspects of dialysis access management.

Among his academic titles, he is a Professor of Clinical Medicine at the Institute of Academic Medicine at Houston Methodist Hospital (6/2018-present), a Professor of Clinical Medicine at Weill Cornell Medicine (12/2018-present), a Clinical Educator at Texas A&M University (2015-present), and on the key faculty of the Nephrology Fellowship Program at Houston Methodist Hospital (2012-present).

Locally, Dr. Nassar’s main hospital practice is in the Houston Methodist Hospital but he also manages patients in Baylor St. Luke’s Medical Center and Kindred Hospital-Houston Medical Center. His outpatient clinic is in The Kidney Institute located in Scurlock Tower on Fannin Street in the Texas Medical Center. He also has privileges in many Houston based dialysis units.

The doctor’s acclaimed career in medicine began after he earned his medical degree from the American University of Beirut Faculty of Medicine in Lebanon in 1988. He then went on to perform his residency in internal medicine and his fellowship in nephrology at the Emory University School of Medicine in 1992 and 1995, respectively. 

With a commitment to excellence, Dr. Nassar is board-certified in internal medicine and nephrology by the American Board of Internal Medicine (ABIM). The ABIM is a physician-led, non-profit, independent evaluation organization driven by doctors who want to achieve higher standards for better care in a rapidly changing world. 

Continuously advancing his efforts, he is an active member of the American College of Physicians, the American Society of Nephrology (Fellow), the Harris County Medical Society, and the American Society and Diagnostic and Interventional Nephrology (ASDIN).

With longstanding expertise in multicenter clinical trial research, Dr. Nassar has published several manuscripts on various aspects of kidney disease management and dialysis access management. He has also been a national speaker and consultant on hypertension, congestive heart failure, metabolic bone disease, diabetic kidney disease, dialysis vascular access, and anemia treatment in patients with kidney failure. 

Nephrology is a specialty of medicine and pediatrics that concerns itself with the kidneys. It is the study of normal kidney function and kidney disease, the preservation of kidney health, and the treatment of kidney disease, from diet and medication to renal replacement therapy. Nephrologists have advanced training in treating kidney disease. They diagnose and treat kidney failure, as well as help patients by prescribing medications, offering special diet advice, and coordinating dialysis care or kidney transplantation when it becomes necessary. 

Among his various accolades, Dr. Nassar has been the recipient of Compassionate Doctor Recognition (2014, 2015), Patients’ Choice Award (2014, 2016, 2018), and On-Time Doctor Award (2014, 2016, 2018). He is also the recipient of first abstract awards on his research in dialysis access from the ASDIN (2014, 2019).

On a more personal note, Dr. Nassar speaks fluent English and Arabic. He also manages to speak some Spanish, and tries to learn more Spanish with every Spanish-Speaking patient-encounter. 

Recommended Articles

• What Is a Kidney Biopsy?

  A kidney biopsy, also called renal biopsy, is a medical procedure which involves taking a sample tissue of the kidney for laboratory analysis. This procedure helps your doctor know the type of disease on your kidney, how severe the disease is and the best treatment option. A kidney biopsy is also...

• What Could Lead to Nephrotic Syndrome?

  IntroductionNephrotic syndrome refers to a group of symptoms that occur when there is something wrong with your kidneys. It can affect people of all ages and is often treatable. Kidney damage may be suspected if an individual shows any of the following symptoms:...

• What are the Early Signs of Lupus?

  Systemic lupus erythematosus (also known as lupus) is a condition that usually affects women. It occurs as a result of antibodies or lymphocytes generated against substances that exist in the body. Approximately one out of 2,100 people has the condition.Women are five times more vulnerable to...

• What Is Shivering: 15 Conditions That Might Cause Chills

  What is shivering?Exposure to cold or rapid shifts in temperature usually causes uncontrollable shivering. However, many other possible causes can cause shivering or chills. An uncontrollable shivering that persists for a longer time may indicate an underlying illness that requires immediate medical...

• What Are the Signs and Symptoms of Kidney Stones?

  What are kidney stones?A kidney stone is a hard, crystal-like mineral substance formed within the kidney or urinary tract. In medical terms, it is known as nephrolithiasis. They are also called as renal calculi.Kidney stones can block the stream of urine and can result in urinary infection, kidney...

• What is a Cluster Headache?

  Headaches that recur two to three times during a short period of time are known as cluster headaches. This may last for few weeks, to months. These headaches often occur after sleep and recur throughout the day. It usually appears during the same time of the year, or season of the year. It may...