Nephrology in Fontana, California
Data updated monthly · Last refresh September 2026
10 Nephrology providers practice in Fontana. Listings are drawn from federal public records and are not endorsements.
Nephrology providers in Fontana
Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Andy Chuu, MDFontana, CA · No drug or device payments recorded (2025) ·
(888) 750-0036 Dr. An Nguyen, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Charles Lu, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. George Grames, M.D.Fontana, CA · No drug or device payments recorded (2025) ·
(909) 356-9664 Dr. Jan Herrman, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Jason Mak, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Jennet Lee, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Paula Cho, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Talha Imam, MDFontana, CA · $750 in drug and device payments (2025) ·
(909) 427-3910 Dr. Woldemariam Gebreselassie, MDFontana, CA · $150 in drug and device payments (2025) ·
(909) 427-3910 Conditions Nephrology providers in Fontana, California commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Nephrology providers. Individual practices vary, so confirm with the provider before booking.
- Chronic kidney disease
- Kidney stones
- Dialysis care
- High blood pressure
Common questions
How many Nephrology providers are in Fontana, California?There are 10 Nephrology providers with active NPI records practicing in Fontana, according to federal NPPES data refreshed monthly.
What conditions do Nephrology providers in Fontana treat?Nephrology providers in Fontana commonly treat chronic kidney disease, kidney stones, dialysis care, high blood pressure and related conditions. Individual practices vary, so confirm with the provider before booking.
Where does this data come from?Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
All specialties in Fontana Nephrology across California
