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Oyije Susannah Iheagwara, MD,  is board-certified in internal medicine and nephrology. She practices at Metro Renal Associates in Washington, DC. 

Dr. Iheagwara completed a nephrology fellowship at the George Washington University Hospital in Washington DC and has a Master's in clinical and translation research from Georgetown University. 

Dr. Iheagwara is a member of several professional societies and is certified as Hypertension Specialist by the American Society of Hypertension. 

Before joining Metro renal Associates in 2022, she worked in academia for several years, where she assisted with the teaching of medical students and residents in training at Howard University. She now returns to private practice bringing her cutting-edge nephrology knowledge and wonderful bedside manner to help kidney disease patients in the DC Metro area. Her clinical interests include the management of chronic kidney disease, hypertension, and electrolyte disorders. 

Dr. Iheagwara is passionate about the care she provides and believes optimal healthcare involves a partnership between the patient and the provider. She strives to educate her patients about their disease conditions fully.

She is married and has three children. She enjoys reading, writing poetry, listening to audiobooks, and working out in her free time.

Kevin Griffiths, MD, is board-certified in nephrology and internal medicine. He received his undergraduate degree from Stanford University before earning his medical degree and masters in public health and health policy and administration at Rutgers New Jersey Medical School. Dr. Griffiths then completed his internal medicine residency and nephrology fellowship training at the same institution.

Currently, he is a partner at Metro Renal Associates in Washington, DC. Dr. Griffiths manages patients that have developed chronic kidney disease and have to perform in-center hemodialysis and specializes in treating kidney disease patients who prefer home dialysis. Additionally, he has experience treating renal transplant patients, difficult to control hypertension, as well as helping patients who suffer from renal stones, lupus, and polycystic kidney disease.

Dr. Griffiths is the medical director at Fresenius Kidney Care Southeast DC and Fresenius Kidney Care Southeast Washington. As the medical director for both facilities, he oversees the care and safety of over 160 dialysis patients.

As a leading voice in his field, Dr. Griffiths gives lectures and seminars on the benefits of home hemodialysis, and his clinical acumen has led to numerous awards. He’s also a fellow with the American Society of Nephrology.

Dr. Griffiths has been recognized as one of “America’s Top Physicians” in nephrology for the years 2009-2013 by the Consumer Research Council of America. For the year 2012, Dr. Griffiths was selected as one of the “Leading Physicians of the World” in the field of nephrology. He was also selected as one of the “Top 10 Nephrologist” by the American Registry.

Dr. Howard joins Cardiology Associates with over 22 years of experience in the practice of cardiology. He is board-certified in general cardiology, interventional cardiology, and echocardiography, and is a Certified Specialist in Hypertension and Resistant Hypertension. He graduated Phi Beta Kappa with Distinction in Research from Union College in New York, received his medical degree from the University of Rochester, and was an intern, resident, chief resident, and cardiology fellow at Boston University Medical Center Hospital, Boston, where he also received his fellowship training in interventional cardiology. He has practiced in several states, including Florida, North Dakota, South Dakota, and Pennsylvania, serving in various leadership roles, including director of echocardiography, director of several cardiac catheterization labs, chief of cardiology, and helped establish cardiology programs, cardiac catheterization labs, and echocardiography labs. He served as a consultant for a national organization, establishing best practices and providing quality and peer review services for hospitals across the US. Dr. Howard enjoys pheasant hunting, fly fishing, running, and downhill skiing. He lives on his farm in Pennsylvania with his wife, family, and four dogs.

Hitesh Patel, MD, FACC, is a board-certified cardiologist specializing in internal medicine and cardiovascular disease. He practices at Cardiology Associates of Frederick in Frederick, Maryland, and is affiliated with Frederick Memorial Hospital.

Dr. Patel graduated Magna Cum Laude in just three years from the University of Maryland, Baltimore, earning a Bachelor of Science in Biochemistry. He went on to receive his Medical Degree from the University of Maryland Medical School.

He completed his internal medicine residency and subsequently a Cardiology Fellowship at Temple University Medical Center in Philadelphia, Pennsylvania, with a focus on general cardiology.

Dr. Patel has advanced expertise in Pacemaker and Defibrillator placement and is a Fellow of the American College of Cardiology (FACC). Known for his patient-first approach, Dr. Patel is committed to delivering compassionate, comprehensive, and cutting-edge cardiac care.

His clinical approach emphasizes patient-centered care, cutting-edge diagnostics, and individualized treatment plans designed to optimize long-term heart health.

Swapna Kanuri, MD, FACC, is a cardiologist at Cardiology Associates of Frederick in Frederick, Maryland. She’s board-certified in internal medicine, cardiology, nuclear cardiology, echocardiography, and vascular ultrasonography.

After graduating from Shri B.M. Patil Medical College and Hospital Research Center in Vijayapura, Karnataka, India, Dr. Kanuri relocated to the United States to complete her internal medicine residency at Creighton University Medical Center in Omaha, Nebraska. She remained in Omaha for her fellowship training in cardiology with a specialization in noninvasive cardiology.  

With more than 15 years of experience, Dr. Kanuri specializes in diagnosing and treating cardiovascular conditions including heart disease, heart failure, arrhythmias, and acute coronary syndrome. She also provides expert care for conditions that increase the risk of cardiovascular diseases, such as high cholesterol and high blood pressure.

Dr. Kanuri is affiliated with Frederick Health Hospital, previously known as Frederick Memorial Hospital. To provide excellent health care to the diverse community. 

At Cardiology Associates of Frederick, Dr. Kunari takes a patient-centered approach to care. She spends time talking to her patients and educating them about their diagnosis and her treatment recommendations so they can take a proactive role in their care and personal health.

Samir Ahuja, MD, is a skilled cardiologist who has achieved board certification in internal medicine, cardiovascular disease, interventional cardiovascular disease, echocardiography, nuclear cardiology, and vascular ultrasonography (RPVI/ARDMS). Dr. Ahuja sees patients at  Cardiology Associates of Frederick in Frederick, Maryland. He is also affiliated with Frederick Memorial Hospital.

Dr. Ahuja graduated from the accelerated/combined six-year BS/MD program completing two years at Pennsylvania State University and then four years at Jefferson Medical College in Philadelphia. He went on to complete his internal medicine residency and a one-year advanced fellowship in cardiomyopathy and heart failure at Boston University Medical Center.

Dr. Ahuja then fulfilled his general cardiology fellowship at the University of Medicine and Dentistry of New Jersey-University Hospital. He then completed his cardiac and peripheral interventional fellowship at Banner Good Samaritan Medical Center in Phoenix, Arizona. He is proud to bring his expertise to his practice at Cardiology Associates of Frederick and is passionate about helping patients improve their cardiovascular health.

Dr. Howard joins Cardiology Associates with over 22 years of experience in the practice of cardiology. He is board-certified in general cardiology, interventional cardiology, and echocardiography, and is a Certified Specialist in Hypertension and Resistant Hypertension. He graduated Phi Beta Kappa with Distinction in Research from Union College in New York, received his medical degree from the University of Rochester, and was an intern, resident, chief resident, and cardiology fellow at Boston University Medical Center Hospital, Boston, where he also received his fellowship training in interventional cardiology. He has practiced in several states, including Florida, North Dakota, South Dakota, and Pennsylvania, serving in various leadership roles, including director of echocardiography, director of several cardiac catheterization labs, chief of cardiology, and helped establish cardiology programs, cardiac catheterization labs, and echocardiography labs. He served as a consultant for a national organization, establishing best practices and providing quality and peer review services for hospitals across the US. Dr. Howard enjoys pheasant hunting, fly fishing, running, and downhill skiing. He lives on his farm in Pennsylvania with his wife, family, and four dogs.