Clinical Pathologists (Laboratory Medicine) in California
Data updated monthly · Last refresh October 2026
131 Clinical Pathology/Laboratory Medicine providers practice in California. The largest concentration is in San Francisco. 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.
131providers
San Franciscotop city
Clinical Pathology/Laboratory Medicine by city in California
Choose a city to see providers there.
Clinical Pathology/Laboratory Medicine 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. Kurt Lundquist, M.D.San Luis Obispo, CA · $1,006 in drug and device payments (2025) ·
(805) 541-6033 Dr. Michael Frost, M.D.San Luis Obispo, CA · No drug or device payments recorded (2025) ·
(805) 541-6033 Dr. Steven Jobst, M.D.San Luis Obispo, CA · $29 in drug and device payments (2025) ·
(805) 541-6033 Dr. John HunnicuttSan Pablo, CA · No drug or device payments recorded (2025) ·
(510) 970-3237 Dr. Russell Brown, M.D.Santa Clara, CA · No drug or device payments recorded (2025) ·
(408) 276-7728 Dr. Kevin Ferguson, M.D.Santa Maria, CA · $167 in drug and device payments (2025) ·
(805) 548-1550 Dr. Frank Bavuso, MDSebastopol, CA · No drug or device payments recorded (2025) ·
(707) 829-5883 Dr. Steve Mertens, MDSebastopol, CA · No drug or device payments recorded (2025) ·
(707) 829-5883 Dr. Vija Bauer-lindbergs, MDSebastopol, CA · No drug or device payments recorded (2025) ·
(707) 829-5883 Dr. Grant Nybakken, M.D.South San Francisco, CA · No drug or device payments recorded (2025) ·
(650) 616-2951 Dr. Iris Schrijver, M.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 724-2403 Dr. Jonathan Pollack, MD, PHDStanford, CA · $47 in drug and device payments (2025) ·
(650) 736-1987 Dr. Martina Lefterova, M.D., PH.D.Stanford, CA · No drug or device payments recorded (2025) ·
(650) 725-8383 Dr. Barbara Yost-knox, MDStockton, CA · No drug or device payments recorded (2025) ·
(209) 476-2000 Dr. Mrugesh Shah, M.D.Thousand Oaks, CA · No drug or device payments recorded (2025) ·
(805) 373-8582 Dr. Liya AbramyanTorrance, CA · No drug or device payments recorded (2025) ·
(310) 222-2242 Dr. He Yang, PHDValencia, CA · No drug or device payments recorded (2025) ·
(847) 571-8264 Dr. Thomas Mcdonald, MDValencia, CA · No drug or device payments recorded (2025) ·
(661) 799-6704 Dr. Reynaldo Bayubay, MDVallejo, CA · No drug or device payments recorded (2025) ·
(707) 651-1000 Dr. Robert James, M.D.Ventura, CA · No drug or device payments recorded (2025) ·
(805) 652-6556 Dr. Raymond Aller, M.D.Vista, CA · No drug or device payments recorded (2025) ·
(760) 801-3760 Dr. Seunghyug Kwon, MD, MPHWest Hills, CA · No drug or device payments recorded (2025) ·
(818) 727-6728 Dr. Bonnie Balzer, MDWest Hollywood, CA · No drug or device payments recorded (2025) ·
(310) 423-6623 Dr. David Engman, MDWest Hollywood, CA · $171,970 in drug and device payments (2025) ·
(310) 423-6627 Dr. David Gibb, M.D., PH.D.West Hollywood, CA · No drug or device payments recorded (2025) ·
(310) 423-6623 Dr. Hedyeh Shafi, M.D.West Hollywood, CA · No drug or device payments recorded (2025) ·
(310) 423-6601 Dr. Jennifer Lee, MDWest Hollywood, CA · $290 in drug and device payments (2025) ·
(310) 423-6623 Dr. Joseph LownikWest Hollywood, CA · No drug or device payments recorded (2025) ·
(608) 346-5904 Dr. Stuart Dubin, M.DWest Hollywood, CA · No drug or device payments recorded (2025) ·
(808) 338-8103 Dr. Pogos MartinyanWestlake Village, CA · No drug or device payments recorded (2025) ·
(818) 219-9690 Common questions
How many Clinical Pathology/Laboratory Medicine providers are in California?There are 131 Clinical Pathology/Laboratory Medicine providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Which cities in California have the most Clinical Pathology/Laboratory Medicine providers?San Francisco (28), Los Angeles (18), San Diego (10) have the highest concentration of Clinical Pathology/Laboratory Medicine providers in California.
How many Clinical Pathology/Laboratory Medicine providers in California received drug or device company payments?26 of 131 Clinical Pathology/Laboratory Medicine 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.
Which hospitals do Clinical Pathologists (Laboratory Medicine) in California work at?According to CMS facility affiliation records, the California hospitals where the most Clinical Pathologists (Laboratory Medicine) hold privileges are UC San Diego Health Hillcrest - Hillcrest Med Ctr in San Diego; UCSF Medical Center in San Francisco; Cedars-Sinai Medical Center in Los Angeles.
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