Clinical Neurophysiologists in California
Data updated monthly · Last refresh October 2026
71 Clinical Neurophysiology providers practice in California, including 30 (42%) offering telehealth. The largest concentration is in Stanford. 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.
71providers
30telehealth
Stanfordtop city
Clinical Neurophysiology by city in California
Choose a city to see providers there.
Where Clinical Neurophysiologists in California practice
From CMS Medicare enrollment records covering 47 of the 71 providers listed here (66%). Providers who do not bill Medicare are not included in these figures.
19%solo or small practice (under 10 clinicians)
11%mid-size group (10 to 99)
70%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Clinical Neurophysiologists | All clinicians in group | Main city |
| Stanford Health Care | 19 | 3,152 | Stanford |
| Rocky Mountain Neurodiagnostics LLC | 3 | 9 | Ladera Ranch |
| Regents of the University of California | 2 | 2,047 | San Diego |
| Faculty Physicians and Surgeons of Llusm | 2 | 1,313 | Loma Linda |
| Sac Health System | 2 | 222 | San Bernardino |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Clinical Neurophysiologists affiliated |
| Stanford Health Care | Stanford | Nonprofit | 5 of 5 | 18 |
| Stanford Health Care Tri-Valley | Pleasanton | Nonprofit | 5 of 5 | 3 |
| Usc Verdugo Hills Hospital | Glendale | Nonprofit | 4 of 5 | 2 |
| Saint Agnes Medical Center | Fresno | Nonprofit | 2 of 5 | 2 |
| San Gorgonio Memorial Hospital | Banning | Government | 3 of 5 | 2 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Clinical Neurophysiology 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. Jerryl Rubin, M.D.Arcata, CA · No drug or device payments recorded (2025) ·
(707) 825-5000 Dr. David Campion, MDBeverly Hills, CA · No drug or device payments recorded (2025) ·
(310) 275-6996 Dr. Hewitt Ryan, M.D.Fresno, CA · No drug or device payments recorded (2025) ·
(559) 228-5328 Dr. Loveneet Singh, M.D.Fresno, CA · $1,830 in drug and device payments (2025) ·
(559) 264-9100 Dr. Sami BajwaFresno, CA · No drug or device payments recorded (2025) · Telehealth ·
(559) 779-6982 Dr. Irving Gislason, MDGarden Grove, CA · No drug or device payments recorded (2025) ·
(714) 971-7652 Dr. Alexander Gevorgyan, M.D.Glendale, CA · $2,524 in drug and device payments (2025) · Telehealth ·
(818) 649-9232 Dr. Yvan Rodrigues, MDLadera Ranch, CA · No drug or device payments recorded (2025) ·
(303) 776-5298 Dr. Firas Bannout, M.DLoma Linda, CA · $214 in drug and device payments (2025) · Telehealth ·
(909) 558-2880 Dr. Ilya Zolotnik, M.D.Loma Linda, CA · No drug or device payments recorded (2025) ·
(909) 825-7084 Dr. Jared Yee, MDLoma Linda, CA · No drug or device payments recorded (2025) ·
(909) 825-7084 Dr. Philip Tseng, M.D.Loma Linda, CA · No drug or device payments recorded (2025) · Telehealth ·
(909) 558-4907 Dr. Thomas Bohr, M.D.Loma Linda, CA · No drug or device payments recorded (2025) ·
(909) 583-6049 Dr. Said Beydoun, M.D.Los Angeles, CA · $186,246 in drug and device payments (2025) · Telehealth ·
(323) 442-5710 Dr. Anna Chen, MDMarina Del Rey, CA · No drug or device payments recorded (2025) ·
(415) 379-0282 Dr. Daniel Vitantonio, MDMarina Del Rey, CA · No drug or device payments recorded (2025) ·
(310) 923-1437 Dr. Golshan Fahimi, MDMission Viejo, CA · $2,028 in drug and device payments (2025) · Telehealth ·
(949) 583-1600 Dr. Alexander Besser, DOMonterey, CA · $356 in drug and device payments (2025) ·
(831) 624-5311 Dr. Nandini Batra, MDOakland, CA · No drug or device payments recorded (2025) ·
(510) 437-4800 Dr. Bassel MahfoudOrange, CA · No drug or device payments recorded (2025) ·
(888) 851-3677 Dr. Muhammad Salim, MDPalm Springs, CA · $134 in drug and device payments (2025) · Telehealth ·
(760) 416-4511 Dr. Lucas Kipp, MDPalo Alto, CA · $210 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Ria Pal, MDPalo Alto, CA · No drug or device payments recorded (2025) ·
(650) 736-0885 Dr. Puja Mathur, MDPomona, CA · $879 in drug and device payments (2025) · Telehealth ·
(909) 982-2719 Dr. Sadiq Altamimi, MDPomona, CA · $7,607 in drug and device payments (2025) · Telehealth ·
(702) 324-4039 Dr. Bhagwan Moorjani, MDRancho Mirage, CA · $353 in drug and device payments (2025) ·
(760) 328-7500 Dr. Mark Keroles, MDRancho Palos Verdes, CA · No drug or device payments recorded (2025) ·
(484) 351-8459 Dr. Rosabel Young, M.D., M.S. PHARM.Redlands, CA · No drug or device payments recorded (2025) ·
(310) 680-0304 Dr. Mohsin Ansari, M.D.Roseville, CA · No drug or device payments recorded (2025) ·
(916) 784-5766 Dr. Barbara Landesman, M.D.Sacramento, CA · No drug or device payments recorded (2025) ·
(650) 580-2501 Dr. Vasanthi Krishna, M.D.Sacramento, CA · No drug or device payments recorded (2025) ·
(916) 333-5311 Dr. Alisherhon Azamov, MDSan Diego, CA · No drug or device payments recorded (2025) ·
(619) 955-8494 Dr. Alissa Carnelian, MSSan Diego, CA · No drug or device payments recorded (2025) ·
(520) 955-0016 Dr. Dominic Ferrey, M.D.San Diego, CA · $5,589 in drug and device payments (2025) · Telehealth ·
(619) 543-6291 Dr. Jeffrey Gertsch, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(619) 543-1899 Dr. William Shih, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(619) 532-7275 Dr. Heidi Kirsch, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 353-2437 Dr. Maria Roberta Cilio, MD, PHDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 502-0277 Dr. Mark Vonzastrow, MDSan Francisco, CA · No drug or device payments recorded (2025) ·
(415) 476-7000 Dr. Michael Aminoff, M.D.San Francisco, CA · No drug or device payments recorded (2025) ·
(415) 353-3084 Dr. Susan Keefauver, MDSan Juan Bautista, CA · No drug or device payments recorded (2025) ·
(831) 623-1000 Dr. Carlos Rosario, MDSanta Ana, CA · $536 in drug and device payments (2025) ·
(866) 322-4222 Dr. Michael Gibbs, M.D.Santa Barbara, CA · $504 in drug and device payments (2025) · Telehealth ·
(805) 682-8153 Dr. Yuvraj Grewal, M.D.Santa Clarita, CA · $953 in drug and device payments (2025) · Telehealth ·
(661) 888-1099 Dr. Parastou Shilian, D.O.Santa Monica, CA · No drug or device payments recorded (2025) ·
(303) 776-5298 Dr. William Buxton, MDSanta Monica, CA · $1,606 in drug and device payments (2025) · Telehealth ·
(310) 582-7641 Dr. Michael Medeiros, M.D.Selma, CA · No drug or device payments recorded (2025) ·
(559) 856-6170 Dr. Christopher Lock, MDStanford, CA · $12,341 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Common questions
How many Clinical Neurophysiology providers are in California?There are 71 Clinical Neurophysiology providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Clinical Neurophysiology providers in California offer telehealth?Yes. 30 of the 71 Clinical Neurophysiology providers in California (about 42%) report offering telehealth services in CMS data.
Which cities in California have the most Clinical Neurophysiology providers?Stanford (20), Loma Linda (5), San Diego (5) have the highest concentration of Clinical Neurophysiology providers in California.
How many Clinical Neurophysiology providers in California received drug or device company payments?32 of 71 Clinical Neurophysiology providers in California (45%) 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 Clinical Neurophysiologists in California work in independent practices or large health systems?Among 47 Clinical Neurophysiologists in California enrolled in Medicare, 19% bill through a solo or small practice with fewer than 10 clinicians, 11% through a mid-size group of 10 to 99, and 70% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Clinical Neurophysiologists in California work at?According to CMS facility affiliation records, the California hospitals where the most Clinical Neurophysiologists hold privileges are Stanford Health Care in Stanford; Stanford Health Care Tri-Valley in Pleasanton; Usc Verdugo Hills Hospital in Glendale.
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