HealthcareDiscovery.AI / Doctors / California / Orthopaedic Surgery

Orthopedic Surgeons in California

Data updated monthly · Last refresh October 2026

2,263 Orthopaedic Surgery providers practice in California, including 324 (14%) 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.

2,263providers
324telehealth
Los Angelestop city

Orthopaedic Surgery by city in California

Choose a city to see providers there.

Orthopaedic Surgery in Los Angeles183 providers
Orthopaedic Surgery in San Diego152 providers
Orthopaedic Surgery in San Francisco121 providers
Orthopaedic Surgery in Sacramento80 providers
Orthopaedic Surgery in La Jolla52 providers
Orthopaedic Surgery in Orange43 providers
Orthopaedic Surgery in Fresno42 providers
Orthopaedic Surgery in Santa Monica36 providers
Orthopaedic Surgery in Oakland35 providers
Orthopaedic Surgery in Stanford34 providers
Orthopaedic Surgery in San Jose32 providers
Orthopaedic Surgery in Torrance32 providers
Orthopaedic Surgery in Walnut Creek29 providers
Orthopaedic Surgery in Riverside28 providers
Orthopaedic Surgery in Bakersfield27 providers
Orthopaedic Surgery in Santa Barbara27 providers
Orthopaedic Surgery in Santa Rosa27 providers
Orthopaedic Surgery in Loma Linda25 providers
Orthopaedic Surgery in Newport Beach24 providers
Orthopaedic Surgery in Santa Ana24 providers
Orthopaedic Surgery in Redwood City23 providers
Orthopaedic Surgery in Modesto23 providers
Orthopaedic Surgery in Ventura20 providers
Orthopaedic Surgery in Van Nuys19 providers

Orthopaedic Surgery 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. Gary Stein, M.D.
Santa Rosa, CA · $200 in drug and device payments (2025) · (707) 546-1922
Dr. Harvey Moskovitz, MD
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 571-4000
Dr. Jacob Zipperstein, MD
Santa Rosa, CA · $802 in drug and device payments (2025) · (707) 393-4080
Dr. James Bauer, MD
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 546-4009
Dr. Jeffrey Mulvihill, MD
Santa Rosa, CA · $151 in drug and device payments (2025) · Telehealth · (707) 521-7799
Dr. John Gansel, MD
Santa Rosa, CA · $15 in drug and device payments (2025) · (707) 571-4000
Dr. Ken Fujii, MD
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 571-4000
Dr. Mark Schakel, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 546-1922
Dr. Michael Mcdermott, M.D.
Santa Rosa, CA · $51 in drug and device payments (2025) · (707) 546-1922
Dr. Michael Star, M.D.
Santa Rosa, CA · $136 in drug and device payments (2025) · Telehealth · (707) 546-1922
Dr. Neema Pourtaheri, MD
Santa Rosa, CA · $1,144 in drug and device payments (2025) · (707) 546-1922
Dr. Paul Treuhaft, MD
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 978-3204
Dr. Raymond Severt, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 978-4322
Dr. Robert Haimson, MD
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 521-7799
Dr. Robert Koch, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 393-4080
Dr. Roger Klein, M.D.
Santa Rosa, CA · $23 in drug and device payments (2025) · (707) 576-0366
Dr. Steven Smith, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 525-4003
Dr. Thomas Axelrad, M.D.
Santa Rosa, CA · $14,998 in drug and device payments (2025) · (707) 546-1922
Dr. Thomas Degenhardt, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (707) 546-1922
Dr. William Ramsey, M.D.
Santa Rosa, CA · No drug or device payments recorded (2025) · (510) 208-4700
Dr. Gregory Belcher, M.D.
Saratoga, CA · No drug or device payments recorded (2025) · (408) 379-8141
Dr. Ian Brodie, MD
Seal Beach, CA · No drug or device payments recorded (2025) · (562) 594-8635
Dr. Bruce Bragonier, M.D.
Sebastopol, CA · No drug or device payments recorded (2025) · (707) 823-7602
Dr. Christine Ramsay, P.A.-C
Sebastopol, CA · No drug or device payments recorded (2025) · (707) 823-7602
Dr. Craig Campbell, MD
Sebastopol, CA · No drug or device payments recorded (2025) · (707) 823-7602
Dr. Michael Bollinger, M.D.
Sebastopol, CA · $239 in drug and device payments (2025) · (707) 823-7602
Dr. David Heskiaoff, M.D.
Sherman Oaks, CA · No drug or device payments recorded (2025) · (818) 784-3878
Dr. Philip Conwisar, MD
Sherman Oaks, CA · $47 in drug and device payments (2025) · (818) 784-1354
Dr. Scott Baden, M.D.
Sherman Oaks, CA · No drug or device payments recorded (2025) · (818) 788-4158
Dr. Robert Afra, MD
Solana Beach, CA · $16 in drug and device payments (2025) · Telehealth · (619) 243-4882
Dr. Christopher Walter, D.O.
Sonoma, CA · $391 in drug and device payments (2025) · (707) 721-8830
Dr. Margaret Meyer, MD
Sonoma, CA · No drug or device payments recorded (2025) · (707) 996-8017
Dr. Michael Brown, M.D.
Sonoma, CA · $1,073 in drug and device payments (2025) · (707) 938-3870
Dr. Michael Sommer, MD
Sonoma, CA · No drug or device payments recorded (2025) · (707) 939-0930
Dr. Noah Weiss, MD
Sonoma, CA · $11,323 in drug and device payments (2025) · Telehealth · (707) 935-5600
Dr. Airell Nygaard, M.D.
Sonora, CA · No drug or device payments recorded (2025) · (209) 588-1800
Dr. Charles Black, D.O.
Sonora, CA · $112 in drug and device payments (2025) · (209) 536-5054
Dr. James Boyd, MD
Sonora, CA · $1,334 in drug and device payments (2025) · Telehealth · (209) 532-0126
Dr. John Nelligan, MD
Sonora, CA · $1,102 in drug and device payments (2025) · (209) 536-5780
Dr. Keren Akakpo, PA-C
Sonora, CA · $21 in drug and device payments (2025) · (209) 532-0126
Dr. Paul Clayman, MD
Soquel, CA · No drug or device payments recorded (2025) · (831) 464-7751
Dr. William Cottrell, MD
South Lake Tahoe, CA · $94 in drug and device payments (2025) · (530) 541-3100
Dr. Zachary Child, MD
South Lake Tahoe, CA · $22,892 in drug and device payments (2025) · (530) 543-5554
Dr. Andrew Fang, MD
South San Francisco, CA · $19 in drug and device payments (2025) · (650) 742-2000
Dr. Christopher Lehman, M.D.
South San Francisco, CA · No drug or device payments recorded (2025) · (650) 742-2191
Dr. Elizabeth Watson, MD
South San Francisco, CA · $237 in drug and device payments (2025) · (650) 742-2000
Dr. Eugene Galvin, MD
South San Francisco, CA · No drug or device payments recorded (2025) · (650) 742-2000
Dr. James Johnson, MD
South San Francisco, CA · $100 in drug and device payments (2025) · (650) 742-2000
Dr. Michael Macavoy, MD
South San Francisco, CA · No drug or device payments recorded (2025) · (650) 742-2000
Dr. Robert Silverstein, MD
South San Francisco, CA · No drug or device payments recorded (2025) · (650) 742-2000

Conditions Orthopaedic Surgery providers in California commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Orthopaedic Surgery providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Orthopaedic Surgery providers are in California?

There are 2,263 Orthopaedic Surgery providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.

Do Orthopaedic Surgery providers in California offer telehealth?

Yes. 324 of the 2,263 Orthopaedic Surgery providers in California (about 14%) report offering telehealth services in CMS data.

Which cities in California have the most Orthopaedic Surgery providers?

Los Angeles (183), San Diego (152), San Francisco (121) have the highest concentration of Orthopaedic Surgery providers in California.

How many Orthopaedic Surgery providers in California received drug or device company payments?

1,255 of 2,263 Orthopaedic Surgery providers in California (55%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Orthopaedic Surgery providers in California treat?

Orthopaedic Surgery providers commonly treat knee replacement, hip replacement, rotator cuff tears, ACL injuries, arthritis and related conditions. Individual practices vary, so confirm with the provider before booking.

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 Orthopedic Surgeons in California work in independent practices or large health systems?

Among 1,271 Orthopedic Surgeons in California enrolled in Medicare, 26% bill through a solo or small practice with fewer than 10 clinicians, 22% through a mid-size group of 10 to 99, and 52% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Orthopedic Surgeons in California work at?

According to CMS facility affiliation records, the California hospitals where the most Orthopedic Surgeons hold privileges are Scripps Memorial Hospital - Encinitas in Encinitas; Cedars-Sinai Medical Center in Los Angeles; Sutter Medical Center, Sacramento in Sacramento.

Orthopaedic Surgery in all 50 states Search all 2,263 in the directory Ask Zach for help choosing

Related

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Orthopaedic Surgery in California? Get featured.