Surgery in Fontana, California
Data updated monthly · Last refresh September 2026
16 Surgery providers practice in Fontana. Listings are drawn from federal public records and are not endorsements.
Surgery 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. Chun Rhim, MDFontana, CA · $120 in drug and device payments (2025) ·
(909) 427-3910 Dr. Clifford Eke, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Daniel Klaristenfeld, MDFontana, CA · $13,500 in drug and device payments (2025) ·
(909) 427-3910 Dr. Darian Behseresht, MDFontana, CA · $728 in drug and device payments (2025) ·
(909) 609-2008 Dr. Jane Ong, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Joseph Ruan, M.D.Fontana, CA · No drug or device payments recorded (2025) ·
(909) 427-5000 Dr. Jun Yamanishi, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Lawrence Harms, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Lori Chow, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Michael Shiffler, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Noel Victor, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Samir Johna, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Sheryl Kwak, M.D.Fontana, CA · No drug or device payments recorded (2025) ·
(909) 427-6163 Dr. Siu-keung Chung, M.D.Fontana, CA · No drug or device payments recorded (2025) ·
(909) 427-2460 Dr. Steven Wenzel, MDFontana, CA · No drug or device payments recorded (2025) ·
(909) 427-3910 Dr. Taylor Ho, MDFontana, CA · $113 in drug and device payments (2025) ·
(909) 427-3910 Common questions
How many Surgery providers are in Fontana, California?There are 16 Surgery providers with active NPI records practicing in Fontana, according to federal NPPES data refreshed monthly.
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 Surgery across California