Colorectal Surgeons in California
Data updated monthly · Last refresh October 2026
200 Colon & Rectal Surgery providers practice in California, including 73 (37%) 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.
200providers
73telehealth
Los Angelestop city
Colon & Rectal Surgery by city in California
Choose a city to see providers there.
Colon & Rectal 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. Richard Coughlin, MD FACSLos Gatos, CA · No drug or device payments recorded (2025) ·
(408) 358-2868 Dr. Christina Jenkins, MDMission Viejo, CA · $650 in drug and device payments (2025) · Telehealth ·
(949) 348-2900 Dr. Fereydoun Azadi, M.D.Modesto, CA · No drug or device payments recorded (2025) ·
(209) 525-3848 Dr. Babak Rad, M.D.Newport Beach, CA · $304 in drug and device payments (2025) ·
(949) 791-6767 Dr. Daniel Ng, MDNewport Beach, CA · $152 in drug and device payments (2025) ·
(949) 791-6767 Dr. Kenneth Aaron, M.D.Newport Beach, CA · No drug or device payments recorded (2025) ·
(949) 760-9431 Dr. Mark Hachigian, MDNewport Beach, CA · No drug or device payments recorded (2025) ·
(949) 721-1830 Dr. Mark Bazalgette, MDNovato, CA · No drug or device payments recorded (2025) ·
(415) 827-0344 Dr. Anita Gregory, M.D.Orange, CA · $4,947 in drug and device payments (2025) ·
(714) 835-8300 Dr. Catherine Zhu, M.D.Orange, CA · $5,982 in drug and device payments (2025) · Telehealth ·
(714) 456-8888 Dr. George Moro, M.D.Orange, CA · No drug or device payments recorded (2025) ·
(714) 836-1595 Dr. Joseph Carmichael, MDOrange, CA · No drug or device payments recorded (2025) · Telehealth ·
(714) 880-7812 Dr. Richard StrakerOrange, CA · No drug or device payments recorded (2025) · Telehealth ·
(215) 662-4000 Dr. Skandan Shanmugan, MDOrange, CA · $4,887 in drug and device payments (2025) · Telehealth ·
(714) 456-8888 Dr. Valery Vilchez, M.D.Orange, CA · $3,524 in drug and device payments (2025) · Telehealth ·
(317) 777-9718 Dr. Arden Morris, MDPalo Alto, CA · No drug or device payments recorded (2025) · Telehealth ·
(650) 723-4000 Dr. Natalie Kirilcuk, M.D.Palo Alto, CA · $3,517 in drug and device payments (2025) · Telehealth ·
(650) 723-4000 Dr. Gabriel Akopian, M.D.Pasadena, CA · $2,343 in drug and device payments (2025) · Telehealth ·
(626) 397-5896 Dr. Juliane Golan, M.D.Pasadena, CA · $11,969 in drug and device payments (2025) · Telehealth ·
(626) 397-5896 Dr. Jose Muniz Castro, M.D.Rancho Mirage, CA · No drug or device payments recorded (2025) ·
(607) 767-6007 Dr. Mohammed Iyoob Mohammed Ilyas, MDRancho Mirage, CA · $107 in drug and device payments (2025) · Telehealth ·
(760) 837-8601 Dr. Scott Gering, MDRancho Mirage, CA · No drug or device payments recorded (2025) ·
(760) 837-8601 Dr. George Angelos, M.D.Redding, CA · No drug or device payments recorded (2025) · Telehealth ·
(530) 244-2882 Dr. Shohrat Annaberdyev, M.D.Roseville, CA · $3,290 in drug and device payments (2025) · Telehealth ·
(916) 755-7095 Dr. Suzanne Arnott, MDRoseville, CA · $700 in drug and device payments (2025) ·
(916) 960-0466 Dr. Timothy Law, M.D.Roseville, CA · $3,532 in drug and device payments (2025) · Telehealth ·
(916) 755-7095 Dr. Ankit Sarin, M.D., M.H.A.Sacramento, CA · $515 in drug and device payments (2025) · Telehealth ·
(916) 734-7192 Dr. Burzeen Karanjawala, M.D.Sacramento, CA · $157 in drug and device payments (2025) ·
(916) 231-1050 Dr. David Rodriguez, M.D.Sacramento, CA · $116 in drug and device payments (2025) ·
(916) 451-2888 Dr. Elizabeth Raskin, MDSacramento, CA · $11,263 in drug and device payments (2025) · Telehealth ·
(916) 703-4472 Dr. Erik Noren, M.D.Sacramento, CA · $5,773 in drug and device payments (2025) · Telehealth ·
(916) 703-4461 Dr. Gail Salganick-erfani, MDSacramento, CA · No drug or device payments recorded (2025) ·
(305) 866-7123 Dr. Ivy Gardner, MDSacramento, CA · $1,103 in drug and device payments (2025) · Telehealth ·
(916) 262-9500 Dr. Jeanne Yu, MDSacramento, CA · $175 in drug and device payments (2025) · Telehealth ·
(916) 262-9500 Dr. John Roe, MDSacramento, CA · No drug or device payments recorded (2025) ·
(916) 688-2000 Dr. J Peter Zegarra, MDSacramento, CA · No drug or device payments recorded (2025) ·
(916) 923-0620 Dr. Miquell Miller, MD, MSCSacramento, CA · $291 in drug and device payments (2025) · Telehealth ·
(916) 734-2620 Dr. Sean FlynnSacramento, CA · $140 in drug and device payments (2025) · Telehealth ·
(916) 734-2843 Dr. Benjamin Abbadessa, M.D.San Diego, CA · $815 in drug and device payments (2025) · Telehealth ·
(858) 822-6277 Dr. Jeffrey Toman, M.D.San Diego, CA · $28 in drug and device payments (2025) ·
(619) 686-4011 Dr. Kathleen O'farrell, M.D.San Diego, CA · No drug or device payments recorded (2025) ·
(619) 532-7577 Dr. Mathew Isho, MDSan Diego, CA · $84 in drug and device payments (2025) · Telehealth ·
(619) 686-4011 Dr. Nicole Lopez, M.DSan Diego, CA · $135 in drug and device payments (2025) · Telehealth ·
(619) 543-1849 Dr. Pamela Lee, MDSan Diego, CA · $151,539 in drug and device payments (2025) ·
(858) 939-8350 Dr. Samuel Eisenstein, MDSan Diego, CA · $341 in drug and device payments (2025) · Telehealth ·
(800) 926-8273 Dr. Shanglei Liu, M.D.San Diego, CA · $220 in drug and device payments (2025) · Telehealth ·
(800) 926-8273 Dr. Theodore Edson, M.D.San Diego, CA · $18 in drug and device payments (2025) ·
(619) 532-7575 Dr. Todd Peterson, M.D.San Diego, CA · $19 in drug and device payments (2025) ·
(619) 532-7577 Common questions
How many Colon & Rectal Surgery providers are in California?There are 200 Colon & Rectal Surgery providers with active NPI records practicing in California, according to federal NPPES data refreshed monthly.
Do Colon & Rectal Surgery providers in California offer telehealth?Yes. 73 of the 200 Colon & Rectal Surgery providers in California (about 37%) report offering telehealth services in CMS data.
Which cities in California have the most Colon & Rectal Surgery providers?Los Angeles (19), Sacramento (12), Fresno (10) have the highest concentration of Colon & Rectal Surgery providers in California.
How many Colon & Rectal Surgery providers in California received drug or device company payments?126 of 200 Colon & Rectal Surgery providers in California (63%) 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 Colorectal Surgeons in California work in independent practices or large health systems?Among 142 Colorectal Surgeons in California enrolled in Medicare, 24% bill through a solo or small practice with fewer than 10 clinicians, 5% through a mid-size group of 10 to 99, and 71% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Colorectal Surgeons in California work at?According to CMS facility affiliation records, the California hospitals where the most Colorectal Surgeons hold privileges are Hoag Memorial Hospital Presbyterian in Newport Beach; Uci Health-Orange in Orange; Keck Hospital of Usc in Los Angeles.
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