Education
Medical:
Duke University School of Medicine
Residency:
UVA Health Medical Center
Fellowship:
University of Alabama Medical Center
Board Certifications
American Board of Internal Medicine - Nephrology
American Board of Internal Medicine - Internal Medicine
Locations
Riverside Renal Specialists Gloucester
7552 Hospital Drive, 302, Gloucester, VA 23061
Get Directions And Drive Time(804) 693-9062
Phone
(804) 693-9062Ratings & Reviews
Riverside Health is committed to exceptional quality, safety and service. All ratings and comments are obtained from patient survey data collected and verified by Press Ganey, an independent organization focused on improving patient experience. Star ratings are displayed for those physicians who participate in Riverside’s patient experience survey program through Press Ganey and have received a minimum of 30 surveys responses.
Overall Satisfaction
5.0
Based on 153 ratings
5 out of 5 stars
5 out of 5 stars
October 31, 2025
Would recommend but he is retiring. He would help anyone though up until his last day with the most professional care and concern.
4.8 out of 5 stars
4.8 out of 5 stars
October 29, 2025
Sorry to hear he's retiring! Great teacher to his patients.
5 out of 5 stars
5 out of 5 stars
October 25, 2025
I will miss the personal attention decision making and thoughtful explanations Dr Gretes gives me at each appointment. Almost forty years we.worked together and I am thankful
5 out of 5 stars
5 out of 5 stars
October 23, 2025
Wonderful experience !
5 out of 5 stars
5 out of 5 stars
October 11, 2025
Dr Gretes is one of the most knowledgeable and personable doctors I have ever met
5 out of 5 stars
5 out of 5 stars
October 02, 2025
Dr. Gretes is exceptional! He is kind, thoughtful and has always been on top of my issues.
5 out of 5 stars
5 out of 5 stars
September 18, 2025
He is an excellent doctor who actually spends sometime with you. Detailed explanations...perfect
5 out of 5 stars
5 out of 5 stars
September 14, 2025
Dr Gretes is knowledgeable caring and instills a sense of confidence that care is appropriate
5 out of 5 stars
5 out of 5 stars
September 11, 2025
Good doctor
5 out of 5 stars
5 out of 5 stars
September 04, 2025
Dr Gretes is the most caring and thorough doctors that I have met over the years. He takes the time to explain my medical condition so well. I shall surely miss him when he retires.
5 out of 5 stars
5 out of 5 stars
September 01, 2025
Dr Gretes is one of the best doctors I have had the pleasure to have. He is kind, knowledgeable and available. You are a great doctor Doc Gretes!!
5 out of 5 stars
5 out of 5 stars
August 14, 2025
Very very sorry to see him retire but it's well deserved. Gonna be hard to replace him!
5 out of 5 stars
5 out of 5 stars
August 05, 2025
Do not let Dr. Gretes retire
5 out of 5 stars
5 out of 5 stars
August 01, 2025
Dr. Gretes is a wonderful doctor, incredibly smart and kind, and shows personal concern for his patients. He spent a great deal of time with me during our visit, listened to my concerns, and helped me thoroughly understand my disease process. He was also careful to include my daughter in my plan of care. I feel very blessed to be under his care.
5 out of 5 stars
5 out of 5 stars
July 27, 2025
He's a wonderful compassionate Md.
5 out of 5 stars
5 out of 5 stars
July 26, 2025
Very responsive.
5 out of 5 stars
5 out of 5 stars
July 19, 2025
Dr. Gretes is an amazing doctor. He goes above and beyond to answer all questions you have.
5 out of 5 stars
5 out of 5 stars
July 18, 2025
As Always good He is patient kind and listens He explains the physiology and knows I want that He works as a team with me. It has been about forty years as my renal doctor [...] I hope my replacement will be as empathetic and knowledgeable
5 out of 5 stars
5 out of 5 stars
July 04, 2025
Dr. Gretes is the best! What a loss to Riverside on his end-of-year retirement.
5 out of 5 stars
5 out of 5 stars
June 27, 2025
Best renal doctor whom always includes me in on any decision making and or treatments whom I have had the privilege of having as y nephrologist for over 33 years.