Dr. Jonathan Kushi, M.D., is board-certified by the American Board of Internal Medicine and a Fellow of the American College of Rheumatology. He is fellowship-trained in Rheumatology. He earned his medical degree from the University of Southern California, Keck School of Medicine, and completed his residency at the Medical College of Wisconsin. Dr. Kushi brings over a decade of experience to the Rheumatic Disease Center in Milwaukee and Glendale.
Dr. Jonathan Kushi, M.D., is board-certified by the American Board of Internal Medicine and a Fellow of the American College of Rheumatology. He is fellowship-trained in Rheumatology. He earned his medical degree from the University of Southern California, Keck School of Medicine, and completed his residency at the Medical College of Wisconsin. Dr. Kushi brings over a decade of experience to the Rheumatic Disease Center in Milwaukee and Glendale.
The reviews listed below were collected independently of Rheumatic Disease Center through rater8. Each review represents an authentic and verified patient experience.
Dr. Kushi is doing a great job with my rheumatoid arthritis.👊🏻
(1 week ago)
Dec-2025
Extremely professional, knowledgeable, polite, caring and kind person. He doesn’t stop until he figures things out.
(1 week ago)
Dec-2025
Jonathan is a caring individual who was easy to talk to. He also explains things you can understand what's happening with your body and your disease. I would highly recommend him to anybody.
(1 week ago)
Dec-2025
Not to professional unorganized rude receptionist could never call to make appointment always have to leave a message it's just very unprofessional needs improvements
(1 week ago)
Dec-2025
Gentle,kind and professional..
(2 weeks ago)
Dec-2025
I feel very confident under his care
(2 weeks ago)
Dec-2025
Great Doctor...will explain things, listen to your concerns and is compassionate
(2 weeks ago)
Dec-2025
Dr Kushi is one of the kindest doctors I’ve ever seen.
(3 weeks ago)
Dec-2025
Great doctor he knows his stuff. He explains things in a language you can understand not the technical term
(1 month ago)
Nov-2025
Rheumatic Disease Center - Glendale
7080 N. Port Washington Rd. Glendale, WI 53217
Rheumatic Disease Center - Layton Avenue
2500 W. Layton Ave. Suite 250 Milwaukee, WI 53221
Dr. Jonathan Kushi, M.D., is an accomplished rheumatology specialist who brings a wealth of experience to his role at Rheumatic Disease Center. With locations in Milwaukee and Glendale, Wisconsin, the practice is a wonderful resource for the community, and Dr. Kushi is proud to be part of the team.
Education has always shaped Dr. Kushi’s path. He began his studies at Johns Hopkins University in Baltimore, Maryland, where he earned his undergraduate degree. He remained at John Hopkins for his Master of Health Science with a concentration in molecular biology and biochemistry.
Dr. Kushi earned his medical degree at the University of Southern California, Keck School of Medicine in Los Angeles. He refined his skills and knowledge through an internship and residency at the Medical College of Wisconsin in Milwaukee.
In more than a decade of experience in rheumatology, Dr. Kushi has refined his bedside manner and communication skills to enhance his efficacy in patient care further. He enjoys getting to know those who rely on him for treatment and watching them reach their goals.
Board-certified by the American Board of Internal Medicine, Dr. Kushi strives to maintain close connections with his peers. He is also a Fellow of the American College of Rheumatology and enjoys seeking out opportunities to learn about new tools and techniques.
Dr. Kushi is doing a great job with my rheumatoid arthritis.👊🏻
Extremely professional, knowledgeable, polite, caring and kind person. He doesn’t stop until he figures things out.
Jonathan is a caring individual who was easy to talk to. He also explains things you can understand what's happening with your body and your disease. I would highly recommend him to anybody.
Not to professional unorganized rude receptionist could never call to make appointment always have to leave a message it's just very unprofessional needs improvements
Gentle,kind and professional..
I feel very confident under his care
Great Doctor...will explain things, listen to your concerns and is compassionate
Dr Kushi is one of the kindest doctors I’ve ever seen.
Great doctor he knows his stuff. He explains things in a language you can understand not the technical term