Spine Surgeons (Orthopaedic) in California
Data updated monthly · Last refresh October 2026
308 Orthopaedic Surgery of the Spine providers practice in California, including 96 (31%) 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.
308providers
96telehealth
Los Angelestop city
Orthopaedic Surgery of the Spine by city in California
Choose a city to see providers there.
Orthopaedic Surgery of the Spine 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. Stepan Kasimian, M.D.Glendale, CA · No drug or device payments recorded (2025) ·
(213) 361-7038 Dr. Robert Byers, M.D.Greenbrae, CA · No drug or device payments recorded (2025) ·
(415) 302-6795 Dr. William Klemme, M.D.Greenbrae, CA · No drug or device payments recorded (2025) ·
(415) 461-1650 Dr. James Hamada, MDHawaiian Gardens, CA · $33 in drug and device payments (2025) ·
(310) 543-1391 Dr. Richard Mulvania, MDHuntington Beach, CA · No drug or device payments recorded (2025) ·
(714) 848-0090 Dr. Robert Ahearn, MDHuntington Beach, CA · $292 in drug and device payments (2025) ·
(714) 841-5333 Dr. Casey Slattery, MDIrvine, CA · $9,454 in drug and device payments (2025) ·
(949) 679-8546 Dr. Eric Lin, MDIrvine, CA · $1,750 in drug and device payments (2025) · Telehealth ·
(949) 340-9622 Dr. Vance Gardner, MDIrvine, CA · No drug or device payments recorded (2025) ·
(949) 854-2803 Dr. David Ashkenaze, M.D.Laguna Beach, CA · $140 in drug and device payments (2025) ·
(949) 499-8226 Dr. Michael Gordon, M.D.Laguna Hills, CA · $11,750 in drug and device payments (2025) ·
(949) 466-3676 Dr. Bryce Johnson, M.D.Laguna Woods, CA · $327 in drug and device payments (2025) ·
(949) 586-3200 Dr. Ali Bagheri, M.D.La Jolla, CA · $986 in drug and device payments (2025) · Telehealth ·
(858) 554-7988 Dr. Christopher Dijanic, MDLa Jolla, CA · $2,489 in drug and device payments (2025) · Telehealth ·
(800) 926-8273 Dr. Gregory Mundis, M.D.La Jolla, CA · $434,538 in drug and device payments (2025) · Telehealth ·
(858) 554-7988 Dr. Richard Thunder, M.D.La Jolla, CA · No drug or device payments recorded (2025) · Telehealth ·
(858) 535-1075 Dr. Roger Thorne, M.D.La Jolla, CA · $110 in drug and device payments (2025) ·
(858) 554-7988 Dr. Stephen Stephan, MDLa Jolla, CA · $79,501 in drug and device payments (2025) · Telehealth ·
(858) 554-7988 Dr. Mark Nelson, MDLajolla, CA · No drug or device payments recorded (2025) · Telehealth ·
(858) 777-7917 Dr. Brian Su, MDLarkspur, CA · $17,612 in drug and device payments (2025) · Telehealth ·
(415) 925-8200 Dr. Jamal ShillingfordLarkspur, CA · $36,381 in drug and device payments (2025) ·
(415) 927-5300 Dr. Siamak Yasmeh, M.D.Loma Linda, CA · $1,104 in drug and device payments (2025) ·
(909) 558-6444 Dr. Wayne Cheng, M.D.Loma Linda, CA · $18,103 in drug and device payments (2025) · Telehealth ·
(909) 906-1116 Dr. Richard Rooney, M.D.Lompoc, CA · $1,005 in drug and device payments (2025) ·
(805) 737-8700 Dr. Brandon Ortega, MDLong Beach, CA · $85,225 in drug and device payments (2025) ·
(562) 285-7075 Dr. Paramjit Bhalla, M.D.Long Beach, CA · No drug or device payments recorded (2025) ·
(562) 427-8119 Dr. Sarbpaul Bhalla, MDLong Beach, CA · No drug or device payments recorded (2025) ·
(562) 427-8119 Dr. Johannes Bernbeck, MDLos Alamitos, CA · $306 in drug and device payments (2025) ·
(562) 206-0177 Dr. Kushagra Verma, M.D.Los Alamitos, CA · $11,914 in drug and device payments (2025) · Telehealth ·
(562) 732-4578 Dr. Alex Ngan, MDLos Angeles, CA · No drug or device payments recorded (2025) ·
(323) 442-5743 Dr. Alisa AlayanLos Angeles, CA · $364 in drug and device payments (2025) ·
(310) 423-9779 Dr. Arya Shamie, MDLos Angeles, CA · $158 in drug and device payments (2025) · Telehealth ·
(310) 440-2999 Dr. Bradley Johnson, MDLos Angeles, CA · $190 in drug and device payments (2025) · Telehealth ·
(323) 442-5860 Dr. Brian Perri, DOLos Angeles, CA · $252 in drug and device payments (2025) ·
(310) 746-5918 Dr. Christopher Mikhail, MDLos Angeles, CA · $23,019 in drug and device payments (2025) · Telehealth ·
(310) 423-9900 Dr. Christopher Yoon Kong, M.D.Los Angeles, CA · $683 in drug and device payments (2025) · Telehealth ·
(310) 423-9779 Dr. David Fish, MD, MPHLos Angeles, CA · $3,939 in drug and device payments (2025) · Telehealth ·
(310) 319-1234 Dr. David Fribourg, MDLos Angeles, CA · $87 in drug and device payments (2025) ·
(323) 783-4011 Dr. Ehsan Saadat, MDLos Angeles, CA · $637 in drug and device payments (2025) · Telehealth ·
(310) 849-4412 Dr. Ersno Eromo, M.D.Los Angeles, CA · $3,281 in drug and device payments (2025) · Telehealth ·
(310) 929-6336 Dr. Francis D'ambrosio, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 346-6020 Dr. Jan Duncan, MDLos Angeles, CA · $46,744 in drug and device payments (2025) ·
(323) 267-0222 Dr. Jeffrey Wang, M.D.Los Angeles, CA · $118,191 in drug and device payments (2025) · Telehealth ·
(323) 442-5300 Dr. John Attenello, M.D.Los Angeles, CA · $679 in drug and device payments (2025) ·
(310) 337-2589 Dr. Jon Kimball, M.D.Los Angeles, CA · $230 in drug and device payments (2025) · Telehealth ·
(323) 442-5860 Dr. Joseph Schwab, MDLos Angeles, CA · $72 in drug and device payments (2025) · Telehealth ·
(310) 423-9900 Dr. Jun Ho Chung, MDLos Angeles, CA · $51,663 in drug and device payments (2025) ·
(310) 423-9678 Dr. Luis Lombardi, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(310) 659-8498 Dr. Lytton Williams, M.D.Los Angeles, CA · No drug or device payments recorded (2025) ·
(213) 207-5635 Common questions
How many Orthopaedic Surgery of the Spine providers are in California?There are 308 Orthopaedic Surgery of the Spine providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Orthopaedic Surgery of the Spine providers in California offer telehealth?Yes. 96 of the 308 Orthopaedic Surgery of the Spine providers in California (about 31%) report offering telehealth services in CMS data.
Which cities in California have the most Orthopaedic Surgery of the Spine providers?Los Angeles (34), San Diego (17), Orange (16) have the highest concentration of Orthopaedic Surgery of the Spine providers in California.
How many Orthopaedic Surgery of the Spine providers in California received drug or device company payments?232 of 308 Orthopaedic Surgery of the Spine providers in California (75%) 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 Spine Surgeons (Orthopaedic) in California work in independent practices or large health systems?Among 214 Spine Surgeons (Orthopaedic) in California enrolled in Medicare, 28% bill through a solo or small practice with fewer than 10 clinicians, 25% through a mid-size group of 10 to 99, and 47% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Spine Surgeons (Orthopaedic) in California work at?According to CMS facility affiliation records, the California hospitals where the most Spine Surgeons (Orthopaedic) hold privileges are Hoag Memorial Hospital Presbyterian in Newport Beach; Cedars-Sinai Medical Center in Los Angeles; Uci Health-Orange in Orange.
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