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inSite Digestive Health Care strives to improve the health of the people and communities we serve. Our board-certified physicians manage digestive illnesses with skill and compassion to benefit the physical, psychological, and social well-being of our patients. Select a provider below to schedule an appointment.

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Alaa Abousaif, MD
English Arabic Orange Office 1010 W. La Veta Ave., Suite 570 Orange, CA 92868 Phone: (714) 835-7700 Fax: (844) 407-0583Irvine Office 16305 Sand Canyon Ave., Suite 220 Irvine, CA 92818 Phone: (714) 835-7700 Fax: (844) 407-0583Newport Beach Office 361 Hospital Road., Suite 227 Newport Beach, CA 91355 Phone: (949) 646-6212 Fax: (949) 650-3013
Anupam Aditi, MD
English Hindi Burlingame Gastroenterology Practice – inSite Digestive Health Care 1860 El Camino Real, Suite 101 Burlingame, CA 94010 Phone: (650) 756-5000 Fax: (650) 737-0170San Francisco - Ocean Office 2645 Ocean Ave., Suite 207 San Francisco, CA 94132 Phone: (415) 333-3302 Fax: (650) 737-0170
Thomas V. Aguirre, MD
English Spanish Santa Barbara Office 2403 Castillo St., Suite 201 Santa Barbara, CA 93105 Phone: (805) 682-3585 Fax: (844) 407-0580
David Alexanian, MD
English Armenian Spanish Burbank Office 201 S. Buena Vista St., Suite 410 Burbank, CA 91505 Phone: (818) 845-3773 Fax: (818) 889-0461
Calin Arimie, MD
English West Hills - Offices of Dr. Arimie & Dr. Chitayat 7320 Woodlake Ave., Suite 260 West Hills, CA 91307 Phone: (818) 992-8505 Fax: (818) 889-0971
Zaree Babakhanian, MD
English Spanish Armenian Glendale Office 1809 Verdugo Blvd., Suite 205 Glendale, CA 91208 Phone: (818) 790-5914 Fax: (818) 296-9555
Cyrus A. Badii, MD
English Farsi West Hills Office 7320 Woodlake Ave., Suite 310 West Hills, CA 91307 Phone: (818) 346-9911 Fax: (818) 889-0971
Ihab Beblawi, MD
English Arabic Pasadena - Alessandro Office 50 Alessandro Pl., Suite 410 Pasadena, CA 91105 Phone: (626) 793-7114 Fax: (818) 889-0408
Edward Bentley, MD
English Santa Barbara Office 2403 Castillo St., Suite 201 Santa Barbara, CA 93105 Phone: (805) 682-3585 Fax: (844) 407-0580
Kenneth Buch, MD
English Encino Office 16311 Ventura Blvd., Suite 775 Encino, CA 91436 Phone: (818) 989-1917 Fax: (818) 889-1331
Cathleen N. Cabansag, MD
Fellowship: California Pacific Medical Center, San Francisco Residency: California Pacific Medical Center, San Francisco MD: Loma Linda University School of Medicine San Francisco Office 2186 Geary Blvd., Suite 320 San Francisco, CA 94115 Phone: (415) 749-6900 Fax: (415) 402-0530
Tim (Tien-Chun) Chen, MD
English
Mandarin San Gabriel Office 207 S. Santa Anita St., Suite P-15 San Gabriel, CA 91776 Phone: (626) 898-4560 Fax: (626) 898-4561Los Angeles Office (Chinatown) 709 N. Hill Street, Suite 18 Los Angeles, CA 90012 Phone: (213) 328-0819 Fax: (844) 407-0584
Stefan J. Chin, MD
English Burlingame Gastroenterology Practice – inSite Digestive Health Care 1860 El Camino Real, Suite 101 Burlingame, CA 94010 Phone: (650) 756-5000 Fax: (650) 737-0170
Ron Chitayat, MD
English West Hills - Offices of Dr. Arimie & Dr. Chitayat 7320 Woodlake Ave., Suite 260 West Hills, CA 91307 Phone: (818) 992-8505 Fax: (818) 889-0971
Kalman Edelman, MD
English Pasadena - Alessandro Office 50 Alessandro Pl., Suite 410 Pasadena, CA 91105 Phone: (626) 793-7114 Fax: (818) 889-0408
Frank J. Farrell, MD
English San Francisco Office 2186 Geary Blvd., Suite 320 San Francisco, CA 94115 Phone: (415) 749-6900 Fax: (415) 402-0530
Henry A. Fisher, MD
English Burbank Office 201 S. Buena Vista St., Suite 410 Burbank, CA 91505 Phone: (818) 845-3773 Fax: (818) 889-0461Valley Village Office 12626 Riverside Dr., Suite 506 Valley Village, CA 91607 Phone: (818) 845-3773 Fax: (818) 889-0461
Casey S. Fu, MD
English Mandarin Pasadena - Raymond Office 630 S. Raymond Ave., Suite 240 Pasadena, CA 91105 Phone: (626) 449-9920 Fax: (844) 406-5405
Bhargava Gannavarapu, MD
English San Jose Office 200 Jose Figueres Ave., Suite 170 San Jose, CA 95116 Phone: (408) 471-2222 Fax: (408) 471-2200Los Gatos Office 14901 National Ave., Suite 101 Los Gatos, CA 95032 Phone: (408) 471-9900 Fax: (408) 471-3333
Ruel T. Garcia, MD
English San Jose Office 200 Jose Figueres Ave., Suite 170 San Jose, CA 95116 Phone: (408) 471-2222 Fax: (408) 471-2200Los Gatos Office 14901 National Ave., Suite 101 Los Gatos, CA 95032 Phone: (408) 471-9900 Fax: (408) 471-3333Mountain View Office 2490 Hospital Drive, Suite 300 Mountain View, CA 94040 Phone: (408) 471-2222 Fax: (844) 407-4559
Rowena Garcia-Chuapoco, MD
English Spanish Tagalog Burlingame Gastroenterology Practice – inSite Digestive Health Care 1860 El Camino Real, Suite 101 Burlingame, CA 94010 Phone: (650) 756-5000 Fax: (650) 737-0170Santa Clara Gastroenterology Practice – inSite Digestive Health Care 1961 Pruneridge Ave., Suite C Santa Clara, CA 95050 Phone: (408) 247-1147 Fax: (650) 737-0170
Benedict Garret, MD
English Burbank Office 201 S. Buena Vista St., Suite 410 Burbank, CA 91505 Phone: (818) 845-3773 Fax: (818) 889-0461Valley Village Office 12626 Riverside Dr., Suite 506 Valley Village, CA 91607 Phone: (818) 845-3773 Fax: (818) 889-0461
Maurice Gourdji, MD
English Tarzana Office 5525 Etiwanda Ave., Suite 110 Tarzana, CA 91356 Phone: (818) 708-6070 Fax: (844) 406-5413
Niloufar Guiv, MD
English Farsi West Hills Office 7320 Woodlake Ave., Suite 310 West Hills, CA 91307 Phone: (818) 346-9911 Fax: (818) 889-0971
Kenneth Hepps, MD
English Tarzana Office 5525 Etiwanda Ave., Suite 110 Tarzana, CA 91356 Phone: (818) 996-4796 Fax: (844) 406-5413
Stephen Herr, MD
English West Hills Office 7320 Woodlake Ave., Suite 310 West Hills, CA 91307 Phone: (818) 346-9911 Fax: (818) 889-0971
James Kao, MD
English Arcadia Office 488 E. Santa Clara St., Suite 103 Arcadia, CA 91006 Phone: (626) 359-3330 Fax: (844) 406-5406Glendora Office 552 W. Foothill Blvd., Suite 200 Glendora, CA 91741 Phone: (626) 963-2490 Fax: (844) 406-5407
John Kasher, MD
English Farsi Spanish Burbank Office 201 S. Buena Vista St., Suite 410 Burbank, CA 91505 Phone: (818) 845-3773 Fax: (818) 889-0461
Mark Kogan, MD
English San Pablo Offices 2089 Vale Rd., Suite 33 San Pablo, CA 94806 Phone: (510) 234-5012 Fax: (510) 222-5200Berkeley Office 2999 Regent Street, Suite 701 Berkeley, CA 94705 Phone: (510) 234-5012 Fax: (510) 222-5200
Brent Kovacs, MD
English Spanish Santa Barbara Office 2403 Castillo St., Suite 201 Santa Barbara, CA 93105 Phone: (805) 682-3585 Fax: (844) 407-0580
Richard A. Kuritzkes, MD
English Burbank Office 201 S. Buena Vista St., Suite 410 Burbank, CA 91505 Phone: (818) 845-3773 Fax: (818) 889-0461Santa Clarita Office 26357 McBean Pkwy., Suite 200 Santa Clarita, CA 91355 Phone: (661) 284-6217 Fax: (818) 889-0461
James J. Lee, MD
English Korean Orange Office 1010 W. La Veta Ave., Suite 570 Orange, CA 92868 Phone: (714) 835-7700 Fax: (844) 407-0583Newport Beach Office 361 Hospital Road., Suite 227 Newport Beach, CA 91355 Phone: (949) 646-6212 Fax: (949) 650-3013
Glenn Littenberg, MD
English Pasadena - Raymond Office
630 S. Raymond Ave., Suite 240
Pasadena, CA 91105
Phone: (626) 449-9920
Fax: (844) 406-5405
Michael Madievsky, MD
English
Russian Tarzana Office 5525 Etiwanda Ave., Suite 110 Tarzana, CA 91356 Phone: (818) 996-4796 Fax: (844) 406-5413
Justin Marasigan, DO
English Camarillo Office 4005 Mission Oak Blvd., Unit A Camarillo, CA 93012 Phone: (805) 484-7921 Fax: (805) 388-5404Oxnard Office 2241 Wankel Way, Suite A Oxnard, CA 93030 Phone: (805) 983-0521 Fax: (805) 485-1484
Jonathan Matthew, MD
English West Hills Office 7320 Woodlake Ave., Suite 310 West Hills, CA 91307 Phone: (818) 346-9911 Fax: (818) 889-0971
Sherif Michael, MD
English Arabic Santa Barbara Office 2403 Castillo St., Suite 201 Santa Barbara, CA 93105 Phone: (805) 682-3585 Fax: (844) 407-0580
Donald Miller, MD
Fellowship: Temple University Hospital Residency: Boston City Hospital MD: Medical College of Pennsylvania Camarillo Office 4005 Mission Oak Blvd., Unit A Camarillo, CA 93012 Phone: (805) 484-7921 Fax: (805) 388-5404Oxnard Office 2241 Wankel Way, Suite A Oxnard, CA 93030 Phone: (805) 983-0521 Fax: (805) 485-1484
Samuel Mourani, MD
English Arabic Arcadia Office 488 E. Santa Clara St., Suite 103 Arcadia, CA 91006 Phone: (626) 359-3330 Fax: (844) 406-5406Glendora Office 552 W. Foothill Blvd., Suite 200 Glendora, CA 91741 Phone: (626) 963-2490 Fax: (844) 406-5407
Haig Najarian, MD
English
Armenian Orange Office 1010 W. La Veta Ave., Suite 570 Orange, CA 92868 Phone: (714) 835-7700 Fax: (844) 407-0583Newport Beach Office 361 Hospital Road., Suite 227 Newport Beach, CA 91355 Phone: (949) 646-6212 Fax: (949) 650-3013
Kiran Narsinh, MD
English
Hindu/Urdu San Pablo Offices 2089 Vale Rd., Suite 33 San Pablo, CA 94806 Phone: (510) 234-5012 Fax: (510) 222-5200Berkeley Office 2999 Regent Street, Suite 701 Berkeley, CA 94705 Phone: (510) 234-5012 Fax: (510) 222-5200
Ken D. Nguyen, MD
English Vietnamese San Gabriel Office 207 S. Santa Anita St., Suite P-15 San Gabriel, CA 91776 Phone: (626) 898-4560 Fax: (626) 898-4561Los Angeles Office (Chinatown) 709 N. Hill Street, Suite 18 Los Angeles, CA 90012 Phone: (213) 328-0819 Fax: (844) 407-0584
Michelle Nguyen, MD
English Los Gatos Office 14901 National Ave., Suite 101 Los Gatos, CA 95032 Phone: (408) 471-9900 Fax: (408) 471-3333San Jose Office 200 Jose Figueres Ave., Suite 170 San Jose, CA 95116 Phone: (408) 471-2222 Fax: (408) 471-2200
Richard E. Nickowitz, MD
English
Spanish Pasadena - Alessandro Office
50 Alessandro Pl., Suite 410
Pasadena, CA 91105
Phone: (626) 793-7114
Fax: (818) 889-0408
Dana Pan, MD
English
Mandarin San Gabriel Office 207 S. Santa Anita St., Suite P-15 San Gabriel, CA 91776 Phone: (626) 898-4560 Fax: (626) 898-4561Los Angeles Office (Chinatown) 709 N. Hill Street, Suite 18 Los Angeles, CA 90012 Phone: (213) 328-0819 Fax: (844) 407-0584
Steven J. Petit, MD
English
Spanish Pasadena - Raymond Office
630 S. Raymond Ave., Suite 240
Pasadena, CA 91105
Phone: (626) 449-9920
Fax: (844) 406-5405
Jatinder S. Pruthi, MD
English Lancaster Office 44215 15th Street West, Suite 209 Lancaster, CA 93534 Phone: (661) 522-4567 Fax: (844) 407-4560
Terri Rembuskos, PA-C
English Chinese Greek Spanish Orange Office 1010 W. La Veta Ave., Suite 570 Orange, CA 92868 Phone: (714) 835-7700 Fax: (844) 407-0583Newport Beach Office 361 Hospital Road., Suite 227 Newport Beach, CA 91355 Phone: (949) 646-6212 Fax: (949) 650-3013
Micha Rojany, MD
English French Spanish Camarillo Office 4005 Mission Oak Blvd., Unit A Camarillo, CA 93012 Phone: (805) 484-7921 Fax: (805) 388-5404Oxnard Office 2241 Wankel Way, Suite A Oxnard, CA 93030 Phone: (805) 983-0521 Fax: (805) 485-1484
Peter M. Rosenberg, MD
English Pasadena - Alessandro Office 50 Alessandro Pl., Suite 410 Pasadena, CA 91105 Phone: (626) 793-7114 Fax: (818) 889-0408
Gerald S. Rothman, MD
English Farsi West Hills Office 7320 Woodlake Ave., Suite 310 West Hills, CA 91307 Phone: (818) 346-9911 Fax: (818) 889-0971
Waleed W. Shindy, MD
English Arabic Pasadena - Raymond Office 630 S. Raymond Ave., Suite 240 Pasadena, CA 91105 Phone: (626) 449-9920 Fax: (844) 406-5405
Eduardo da Silveira, MD
English Spanish Portuguese San Jose Office 200 Jose Figueres Ave., Suite 170 San Jose, CA 95116 Phone: (408) 471-2222 Fax: (408) 471-2200Los Gatos Office 14901 National Ave., Suite 101 Los Gatos, CA 95032 Phone: (408) 471-9900 Fax: (408) 471-3333Mountain View Office 2490 Hospital Drive, Suite 300 Mountain View, CA 94040 Phone: (408) 471-2222 Fax: (844) 407-4559
Karen Simon, MD
English Camarillo Office 4005 Mission Oak Blvd., Unit A Camarillo, CA 93012 Phone: (805) 484-7921 Fax: (805) 388-5404Oxnard Office 2241 Wankel Way, Suite A Oxnard, CA 93030 Phone: (805) 983-0521 Fax: (805) 485-1484
Hardeep M. Singh, MD
English Punjabi Spanish Orange Office 1010 W. La Veta Ave., Suite 570 Orange, CA 92868 Phone: (714) 835-7700 Fax: (844) 407-0583Irvine Office 16305 Sand Canyon Ave., Suite 220 Irvine, CA 92818 Phone: (714) 835-7700 Fax: (844) 407-0583Newport Beach Office 361 Hospital Road., Suite 227 Newport Beach, CA 91355 Phone: (949) 646-6212 Fax: (949) 650-3013
Sassan Soltani, MD
English Farsi Pasadena - Alessandro Office 50 Alessandro Pl., Suite 410 Pasadena, CA 91105 Phone: (626) 793-7114 Fax: (818) 889-0408
Elias Tarakji, MD
English Arabic Arcadia Office 488 E. Santa Clara St., Suite 103 Arcadia, CA 91006 Phone: (626) 359-3330 Fax: (844) 406-5406Glendora Office 552 W. Foothill Blvd., Suite 200 Glendora, CA 91741 Phone: (626) 963-2490 Fax: (844) 406-5407
Mark Tsuchiyose, MD
English Spanish Burlingame Gastroenterology Practice – inSite Digestive Health Care 1860 El Camino Real, Suite 101 Burlingame, CA 94010 Phone: (650) 756-5000 Fax: (650) 737-0170San Francisco - Ocean Office 2645 Ocean Ave., Suite 207 San Francisco, CA 94132 Phone: (415) 333-3302 Fax: (650) 737-0170
Sukhpreet S. Walia, MD
English Hindu Punjabi Camarillo Office 4005 Mission Oak Blvd., Unit A Camarillo, CA 93012 Phone: (805) 484-7921 Fax: (805) 388-5404Oxnard Office 2241 Wankel Way, Suite A Oxnard, CA 93030 Phone: (805) 983-0521 Fax: (805) 485-1484
Julie Yang, MD
English Mandarin Spanish Taiwanese Pasadena - Alessandro Office 50 Alessandro Pl., Suite 410 Pasadena, CA 91105 Phone: (626) 793-7114 Fax: (818) 889-0408
John Zeroogian, MD
English Pasadena - Raymond Office 630 S. Raymond Ave., Suite 240 Pasadena, CA 91105 Phone: (626) 449-9920 Fax: (844) 406-5405
Nancy Ho, MD
English Mandarin Chinese
Connie Hwang, NCCPA, AAPA
English Basic fluency in Korean Camarillo Office 4005 Mission Oak Blvd., Unit A Camarillo, CA 93012 Phone: (805) 484-7921 Fax: (805) 388-5404Oxnard Office 2241 Wankel Way, Suite A Oxnard, CA 93030 Phone: (805) 983-0521 Fax: (805) 485-1484
Chrissy Malone,
Camarillo Office 4005 Mission Oak Blvd., Unit A Camarillo, CA 93012 Phone: (805) 484-7921 Fax: (805) 388-5404Oxnard Office 2241 Wankel Way, Suite A Oxnard, CA 93030 Phone: (805) 983-0521 Fax: (805) 485-1484
Wei-Chung Chen, MD
English Chinese Mandarin Pasadena - Alessandro Office 50 Alessandro Pl., Suite 410 Pasadena, CA 91105 Phone: (626) 793-7114 Fax: (818) 889-0408
Rachel Catevenis, PA-C
English Santa Barbara Office 2403 Castillo St., Suite 201 Santa Barbara, CA 93105 Phone: (805) 682-3585 Fax: (844) 407-0580
Daniel Chiu, NP
Orange Office 1010 W. La Veta Ave., Suite 570 Orange, CA 92868 Phone: (714) 835-7700 Fax: (844) 407-0583Newport Beach Office 361 Hospital Road., Suite 227 Newport Beach, CA 91355 Phone: (949) 646-6212 Fax: (949) 650-3013
Jessica Fennewald, NP
English Camarillo Office 4005 Mission Oak Blvd., Unit A Camarillo, CA 93012 Phone: (805) 484-7921 Fax: (805) 388-5404Oxnard Office 2241 Wankel Way, Suite A Oxnard, CA 93030 Phone: (805) 983-0521 Fax: (805) 485-1484
Chelsea Fujita-Haffner, NP
English Spanish Glendora Office 552 W. Foothill Blvd., Suite 200 Glendora, CA 91741 Phone: (626) 963-2490 Fax: (844) 406-5407Arcadia Office 488 E. Santa Clara St., Suite 103 Arcadia, CA 91006 Phone: (626) 359-3330 Fax: (844) 406-5406
Jenny Hua, PA
English Pasadena - Raymond Office
630 S. Raymond Avd., Suite 240
Pasadena, CA 91105
Phone: (626) 449-9920
Fax: (844) 406-5405
Elizabeth Marie Marfazelian, NP
English
Armenian Pasadena - Alessandro Office
50 Alessandro Pl., Suite 410
Pasadena, CA 91105
Phone: (626) 793-7114
Fax: (818) 889-0408
Kristina Neagos, MSN, FNP-C
English Romanian Hungarian Burbank Office 201 South Buena Vista Blvd., Suite 410 Burbank, CA 91505 Phone: (818) 845-3773 Fax: (818) 889-0461Santa Clarita Office 26357 McBean Pkwy., Suite 200 Santa Clarita, CA 91355 Phone: (661) 284-6217 Fax: (818) 889-0461Valley Village Office 12626 Riverside Dr., Suite 506 Valley Village, CA 91607 Phone: (818) 845-3773 Fax: (818) 889-0461
Courtney Titus, CHHC
English Pasadena - Raymond Office 630 S. Raymond Avd., Suite 240 Pasadena, CA 91105 Phone: (626) 449-9920 Fax: (844) 406-5405

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inSite Digestive Health Care offers diagnosis and treatment of diseases of the gastrointestinal system with locations across all of California.