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. Rebecca Rojansky, MD, PHDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Richard Hildebrandt, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Richard Sibley, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 725-5194 Dr. Roberto Novoa, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Roger Warnke, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 723-7211 Dr. Roshanak DerakhshandehStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-7211 Dr. Ryanne Brown, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Salima Mansoor Ali, MBBSStanford, CA · No drug or device payments recorded (2025) ·
(202) 687-3614 Dr. Sara Bakhtary, M.D.Stanford, CA · $29 in drug and device payments (2025) ·
(650) 723-5252 Dr. Scott Boyd, MD, PHDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-7211 Dr. Sebastian Fernandez-pol, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Serena Tan, M.D.Stanford, CA · $28 in drug and device payments (2025) ·
(650) 723-4000 Dr. Sharon Geaghan, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 723-7211 Dr. Sharon WuStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-7211 Dr. Siddhartha Jaiswal, MD, PHDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Steven Chirieleison, MD, PHDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Steven Foung, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Sucheta Srivastava, M.D.Stanford, CA · $48 in drug and device payments (2025) ·
(650) 723-4000 Dr. Suchitra Pandey, M.D.Stanford, CA · $946 in drug and device payments (2025) ·
(650) 723-4000 Dr. Teri Longacre, MDStanford, CA · $42,190 in drug and device payments (2025) ·
(650) 723-4000 Dr. Thomas Montine, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Tho Pham, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Tiffany ChambersStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Tong Wang, MD, PHDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. Vivek Charu, MDStanford, CA · $45 in drug and device payments (2025) ·
(650) 723-4000 Dr. Wei Gu, MDStanford, CA · No drug or device payments recorded (2025) ·
(650) 723-4000 Dr. William Howell, M.D., PH.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 723-5252 Dr. William Rogers, M.D.Stanford, CA · $28 in drug and device payments (2025) ·
(650) 723-7211 Dr. Yasodha Natkunam, MD, PHDStanford, CA · $17,418 in drug and device payments (2025) ·
(650) 723-4000 Dr. Ying LiuStanford, CA · $29 in drug and device payments (2025) ·
(650) 723-7211 Dr. Andrew Fong, MDStockton, CA · No drug or device payments recorded (2025) ·
(209) 943-2000 Dr. Beiru Chen, M.D.Stockton, CA · No drug or device payments recorded (2025) ·
(209) 477-4432 Dr. David Jensen, MDStockton, CA · No drug or device payments recorded (2025) ·
(209) 943-2000 Dr. Hong Li, MDStockton, CA · No drug or device payments recorded (2025) ·
(209) 476-5989 Dr. Jeffrey Mcdavit, M.D.Stockton, CA · No drug or device payments recorded (2025) ·
(209) 943-2000 Dr. Lily Pang, M.D.Stockton, CA · No drug or device payments recorded (2025) ·
(209) 943-2000 Dr. Mark Nishiki, MDStockton, CA · No drug or device payments recorded (2025) ·
(209) 943-2000 Dr. Robert Lawrence, M.D.Stockton, CA · No drug or device payments recorded (2025) ·
(209) 477-4432 Dr. Thomas Yu, MDStockton, CA · No drug or device payments recorded (2025) ·
(209) 943-2000 Dr. Douglas Kahn, MDSylmar, CA · No drug or device payments recorded (2025) ·
(818) 364-1555 Dr. John Sacoolidge, MDSylmar, CA · No drug or device payments recorded (2025) ·
(818) 364-4036 Dr. Paul Liu, M.D.Sylmar, CA · No drug or device payments recorded (2025) ·
(818) 364-4033 Dr. Simon Backer, MDSylmar, CA · No drug or device payments recorded (2025) ·
(747) 210-4534 Dr. Cuauhtemoc Magana, MDThousand Oaks, CA · No drug or device payments recorded (2025) ·
(805) 373-8582 Dr. Danielle Westfall, M.D.Thousand Oaks, CA · No drug or device payments recorded (2025) ·
(805) 373-8582 Dr. Edward Blackman, MDThousand Oaks, CA · No drug or device payments recorded (2025) ·
(805) 373-8582 Dr. Eric Broxham, M.D.Thousand Oaks, CA · $150 in drug and device payments (2025) ·
(805) 373-8582 Dr. Falguni Suthar, M.D.Thousand Oaks, CA · No drug or device payments recorded (2025) ·
(805) 373-8582 Dr. Gary Pesselnick, M.D.Thousand Oaks, CA · No drug or device payments recorded (2025) ·
(818) 383-2005 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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