Olayiwola Ayodeji, M.D., MPH, FACP
Director of Clinical Research
Dr. Ayodeji has been practicing Nephrology on the Peninsula since 1995. He has led the development of The Clinical Trials Program at Peninsula Kidney Associates and served as a Principal Investigator on many research trials. Dr. Ayodeji presently...
Dr. Ayodeji has a Master’s degree in Public Health and is currently the director of our Clinical Research Program.
Lei Chen, M.D.
Dr. Chen joined Peninsula Kidney Associates in 2017; he currently practices at our Williamsburg office. He began an Internal Medicine Residency at East Tennessee State University in 2010 as he missed working with patients directly as a physician....
Dr. Chen joined Peninsula Kidney Associates in 2017; he currently practices at our Williamsburg office.
Hoang-Hai Nguyen, M.D.
Dr. Nguyen joined Peninsula Kidney Associates in 2009. As a transplant nephrologist, he specializes in pre and postoperative transplant care. Dr. Nguyen also treats patients at Sentara CarePlex, Sentra Williamsburg Regional and Mary Immaculate hos...
Dr. Nguyen is a trained transplant nephrologist. His special interest is managing the care of patients before and after transplantation.
Merfake Semret, M.D.
Hypertension and Kidney Disease Management
Dr. Semret joined Peninsula Kidney Associates in 2011. He specializes in the management of hypertension and kidney disease. He currently practices in both our Hampton and Williamsburg locations. Prior to his arrival, Dr. Semret served as an Instr...
Dr. Semret practices in both our Hampton and Williamsburg locations. He specializes in the management of hypertension and kidney disease.
Joanne Siu, M.D.
Dr. Siu has been practicing Nephrology on the Peninsula since 2003. She presently serves as the Medical Director of DaVita Peninsula Dialysis Center. She works closely with the Clinical Trials Program at Peninsula Kidney Associates and served as ...
Dr. Siu specializes in the detection of kidney related diseases through ultrasonography.
Shuping Wang, M.D.
Medical Director - DaVita Williamsburg Dialysis Center
Dr. Wang has practiced nephrology in the Williamsburg area since 2005. She has a special passion for geriatric care and specializes in the management of chronic kidney disease, hypertension and kidney related anemia and bone disease. She is fluent...
Dr. Wang is one of few nephrologists in the Williamsburg area. She takes pride in her impeccable reputation with fellow physicians and patients in the area.
Yolanda Brooks, AGNP
Adult/Gerontology Nurse Practitioner
Yolanda Brooks is a certified adult/gerontology nurse practitioner and native to Hampton Roads, she has been actively caring for patients since 2010 as a Registered Nurse and more recently Nurse Practitioner. Prior to joining PKA Yolanda worked...
Dan Stephenson, FNP-C
Family Nurse Practitioner
Dan Stephenson is a certified family nurse practitioner and native of Hampton Roads. He graduated from Old Dominion University Magna Cum Laude with a Bachelor of Science in Nursing, and then continued to receive his masters from Walden University ...
Dr. Ayodeji and his staff have always provided me with professionalism and great customer service. Even in the midst of my accepting my situation, Dr. Ayodeji was the most understanding physician I have ever dealt with. He truly cares and understands. I appreciate him in many ways as a doctor.
There is a genuine concern with my medical care. Also the staff has always worked along with me in case of an emergency.
I’ve always liked (Peninsula Kidney Associates) and will continue to come. I feel relieved to know I have had the best of care.
I always leave with the satisfaction of feeling I had the best assessment of my condition and the best intervention. I would say I am a miracle with the treatment I receive.
For me , I would rather come here than any of my other physicians.
Dr. Wang is always concerned and aware of my healthcare. Even when we call about questions, she takes the time to make any necessary adjustments.
I loved the service and staff kindness.
I have been at the Denbigh location for over a year now and everyone involved has really succeeded in making these visits outstanding….Please keep doing the right things. It has caused difficult times to (have) delightful outcomes.
Your staff is always very nice, polite and respectful. Always easy to speak to.