Pathologists (Anatomic & Clinical) in California
Data updated monthly · Last refresh October 2026
1,553 Anatomic Pathology & Clinical Pathology providers practice in California, including 5 (0%) offering telehealth. The largest concentration is in Los Angeles. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
1,553providers
5telehealth
Los Angelestop city
Anatomic Pathology & Clinical Pathology by city in California
Choose a city to see providers there.
Anatomic Pathology & Clinical Pathology providers in California
Listed by city, largest first. 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. Lowell Watkins, MDRedlands, CA · No drug or device payments recorded (2025) ·
(909) 335-5628 Dr. Guilan Chen, M.D.Redwood City, CA · No drug or device payments recorded (2025) ·
(650) 299-2414 Dr. J Guichard, M.D.Redwood City, CA · No drug or device payments recorded (2025) ·
(650) 367-5544 Dr. Nhuthuy Can, MDRedwood City, CA · No drug or device payments recorded (2025) ·
(650) 569-2111 Dr. Ales Pindur, MDRiverside, CA · No drug or device payments recorded (2025) ·
(909) 353-2000 Dr. Anh Phan, MDRiverside, CA · No drug or device payments recorded (2025) ·
(909) 353-2000 Dr. Corina Kwan, D.O.Riverside, CA · No drug or device payments recorded (2025) ·
(951) 353-2000 Dr. Darren Okada, M.D.Riverside, CA · No drug or device payments recorded (2025) ·
(951) 788-3243 Dr. Dong Quach, MDRiverside, CA · No drug or device payments recorded (2025) ·
(909) 353-2000 Dr. Joseph Cohen, M.D.Riverside, CA · No drug or device payments recorded (2025) ·
(951) 369-0540 Dr. Joseph Tang, MDRiverside, CA · No drug or device payments recorded (2025) ·
(951) 602-4502 Dr. Kristina Cendrowski, MDRiverside, CA · No drug or device payments recorded (2025) ·
(951) 788-3240 Dr. Maria Salcedo, MDRiverside, CA · $36 in drug and device payments (2025) ·
(909) 353-2000 Dr. Mark Taira, MDRiverside, CA · No drug or device payments recorded (2025) ·
(909) 353-2000 Dr. Mary Le, MDRiverside, CA · No drug or device payments recorded (2025) ·
(951) 353-4658 Dr. Michelle Meyer, M.D.Riverside, CA · No drug or device payments recorded (2025) ·
(951) 788-3243 Dr. Ralph Korpman, M.D.Riverside, CA · No drug or device payments recorded (2025) ·
(951) 686-3107 Dr. Steven Aragon, MDRiverside, CA · No drug or device payments recorded (2025) ·
(951) 788-3243 Dr. Xavier Rivera RiveraRiverside, CA · No drug or device payments recorded (2025) ·
(787) 590-9891 Dr. Tuan Nguyen, M.D.Rosemead, CA · No drug or device payments recorded (2025) ·
(661) 472-5003 Dr. Lirong Cheng, MDRoseville, CA · $150 in drug and device payments (2025) ·
(916) 784-4000 Dr. Win Naing, M.D.Rowland Heights, CA · No drug or device payments recorded (2025) ·
(626) 709-7168 Dr. Ahresh SahaSacramento, CA · $30 in drug and device payments (2025) ·
(916) 734-3331 Dr. Alaa Afify, M.D.Sacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-2525 Dr. Alae Yaseen, M.D.Sacramento, CA · No drug or device payments recorded (2025) ·
(916) 447-6267 Dr. Alison ChanSacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-2525 Dr. Ananya Datta MitraSacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-2525 Dr. Andrea Ong, M.D.Sacramento, CA · No drug or device payments recorded (2025) ·
(916) 447-6267 Dr. Anthony Karnezis, MD, PHDSacramento, CA · $282 in drug and device payments (2025) ·
(916) 734-2651 Dr. Clayton LavalleySacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-2350 Dr. Dariusz Borys, M.D.Sacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-2525 Dr. Denis Dwyre, M.D.Sacramento, CA · $195 in drug and device payments (2025) ·
(916) 734-2525 Dr. Derek Marsee, MD, PHDSacramento, CA · $102 in drug and device payments (2025) ·
(916) 447-6267 Dr. Elham Vali Betts, MDSacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-2525 Dr. Ellika Salari, MDSacramento, CA · $24 in drug and device payments (2025) ·
(916) 734-3331 Dr. Florette Gray Hazard, MDSacramento, CA · $20 in drug and device payments (2025) ·
(916) 734-8370 Dr. Gopal Patel, MD PHDSacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-3331 Dr. Hnin IngyinSacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-5534 Dr. Jianmin Xu, M.D.Sacramento, CA · No drug or device payments recorded (2025) ·
(916) 446-0424 Dr. John Graff, DOSacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-0299 Dr. Jonathan KonopinskiSacramento, CA · $127 in drug and device payments (2025) ·
(800) 465-3203 Dr. Juan RongSacramento, CA · No drug or device payments recorded (2025) ·
(916) 447-6267 Dr. Julie Ann Walby, MDSacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-3331 Dr. Kareem Allam, MDSacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-3331 Dr. Karen Matsukuma, MD, PHDSacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-2525 Dr. Katherine Deem, M.D.Sacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-2525 Dr. Kristin Olson, MDSacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-3141 Dr. Lee-way Jin, M.D.Sacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-2525 Dr. Leonor Fernando, MDSacramento, CA · $234 in drug and device payments (2025) ·
(916) 734-3327 Dr. Li Lei, M.D., PH.D.Sacramento, CA · No drug or device payments recorded (2025) ·
(916) 734-5008 Common questions
How many Anatomic Pathology & Clinical Pathology providers are in California?There are 1,553 Anatomic Pathology & Clinical Pathology providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Anatomic Pathology & Clinical Pathology providers in California offer telehealth?Yes. 5 of the 1,553 Anatomic Pathology & Clinical Pathology providers in California (about 0%) report offering telehealth services in CMS data.
Which cities in California have the most Anatomic Pathology & Clinical Pathology providers?Los Angeles (206), Stanford (115), San Diego (107) have the highest concentration of Anatomic Pathology & Clinical Pathology providers in California.
How many Anatomic Pathology & Clinical Pathology providers in California received drug or device company payments?313 of 1,553 Anatomic Pathology & Clinical Pathology providers in California (20%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
Where does this data come from?Provider counts and profiles 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.
Do most Pathologists (Anatomic & Clinical) in California work in independent practices or large health systems?Among 840 Pathologists (Anatomic & Clinical) in California enrolled in Medicare, 25% bill through a solo or small practice with fewer than 10 clinicians, 27% through a mid-size group of 10 to 99, and 48% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Pathologists (Anatomic & Clinical) in California work at?According to CMS facility affiliation records, the California hospitals where the most Pathologists (Anatomic & Clinical) hold privileges are Stanford Health Care in Stanford; Stanford Health Care Tri-Valley in Pleasanton; Cedars-Sinai Medical Center in Los Angeles.
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