Site Network: Meet Our Principal Investigators

Augusto Focil, MD, MPH

Internal Medicine

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Oxnard, CA

Karen Simon, MD

Gastroenterology

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Camarillo & Oxnard, CA

Carey Chronis, MD, FAAP

Pediatrics

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Ventura, CA

Sherif Aboseif, MD

Urology

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Oxnard, CA

Preeti Chopra, MD

Allergy & Immunology

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Ventura & Oxnard, CA

Koosha Mortazavi, MD

Nephrology

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Oxnard, CA

Robert Nudelman, MD

Pediatrics

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Westlake Village, CA

Bradley Hiner, MD

Neurology

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Oxnard, CA

Paul Nazemi, MD

Ophthalmology

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Oxnard, CA

Nawazish Khan, MD

Oncology

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Oxnard, CA

Tony Makhlouf, MD

Rheumatology

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Simi Valley, CA

Elias A. Tarakji, MD

Gastroenterology

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Arcadia, CA

Dana Y. Pan, MD

Gastroenterology

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Temple City, CA

Than Luu, MD

Internal Medicine

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Rosemead, CA

Dr. Keval Shah, DO

Gastroenterology

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Santa Maria, CA

Paramjit Benipal, MD

Gastroenterology

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Santa Maria, CA

Atul Vachhani, MD

Gastroenterology

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Santa Maria, CA

Sukhpreet Walia, MD

Gastroenterology

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Santa Maria, CA

Robert Evans, MD

Gastroenterology

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Santa Maria, CA

Igor J. Nastaskin, MD

Gastroenterology

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Santa Maria, CA

Kamlesh Desai, MD

Family Medicine

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Santa Maria, CA

Alex Harrison, MD

Cardiology

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Santa Maria, CA

Ragui W. Sedeek, MD

Ophthalmology

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Santa Maria, CA

Jeffrey Kaplan, MD

Pediatrics

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Santa Maria, CA

Melinda Jezierski, MD

Family Medicine

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Santa Maria, CA

Oguchi Nkwocha, MD

Family Medicine

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Castroville, CA

Bob Peng, MD

Obstetrics and Gynecology

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Salinas, CA

Olga Padron, MD

Family Medicine

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Greenfield, CA

Eva Perusquia, MD

Internal Medicine

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Salinas, CA

Nadia Arias, MD

Pediatrics

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Salinas, CA

Georgina Centeno, MD

Obstetrics and Gynecology

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Salinas, CA

Terrance Hack, MD

Internal Medicine

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Salinas, CA

Juana Lucio, MD

Family Medicine

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Salinas, CA

Armando Moreno, MD

Obstetrics and Gynecology

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Salinas, CA

Edgar Robles, MD

Family Medicine

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Salinas, CA

Tommy Matin, MD

Family Medicine

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Oxnard, CA

Michael Bogseth, MD

Urgent Care Medicine

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Oxnard, CA

Micha Rojany, MD

Gastroenterology

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Camarillo & Oxnard, CA

Justin Marasigan, DO

Gastroenterology

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Camarillo & Oxnard, CA

Ali Dana, MD

Nephrology

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Oxnard, CA

Kelvin Wong, MD

Urology

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Oxnard, CA

Kevin Lee, MD

Urology

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Oxnard, CA

Prashant Verma Jr, MD

Allergy & Immunology

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Ventura, CA

Steven Ledesma, MD

Nephrology

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Oxnard, CA

Donald Miller, MD

Gastroenterology

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Oxnard, CA

Jacob Lau, MD

Dermatology

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Oxnard, CA

Ericka Lan, MD

Neurology

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Oxnard, CA

Samuel Mourani, MD

Gastroenterology

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Glendora, CA

Ken Nguyen, MD

Gastroenterology

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San Gabriel, CA

Tim (Tien-Chun) Chen, MD

Gastroenterology

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Los Angeles, CA

Kenneth Buch, MD

Gastroenterology

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Encino, CA

Kenneth Hepps, MD

Gastroenterology

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Tarzana, CA

Michael Lai, MD

Endocrinology

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Santa Maria, CA

Casey Fu, MD

Gastroenterology

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Pasadena, CA

James Kao, MD

Gastroenterology

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Arcadia, CA

Jon Yoshiyama, MD

Family Medicine

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Salinas, CA

(805) 483 1185

Our Investigators

Principal Investigators

Augusto Focil, MD, MPH

Internal Medicine

Karen Simon, MD

Gastroenterology

Carey Chronis, MD, FAAP

Pediatrics

Sherif Aboseif, MD

Urology

Preeti Chopra, MD

Allergy & Immunology

Koosha Mortazavi, MD

Nephrology

Robert Nudelman, MD

Pediatrics

Bradley Hiner, MD

Neurology

Paul Nazemi, MD

Ophthalmology

Nawazish Khan, MD

Oncology

Tony Makhlouf, MD

Rheumatology

Elias A. Tarakji, MD

Gastroenterology

Dana Y. Pan, MD

Gastroenterology

Than Luu, MD

Internal Medicine

Dr. Keval Shah, DO

Gastroenterology

Paramjit Benipal, MD

Gastroenterology

Atul Vachhani, MD

Gastroenterology

Sukhpreet Walia, MD

Gastroenterology

Robert Evans, MD

Gastroenterology

Igor J. Nastaskin, MD

Gastroenterology

Kamlesh Desai, MD

Family Medicine

Alex Harrison, MD

Cardiology

Ragui W. Sedeek, MD

Ophthalmology

Jeffrey Kaplan, MD

Pediatrics

Melinda Jezierski, MD

Family Medicine

Oguchi Nkwocha, MD

Family Medicine

Bob Peng, MD

Obstetrics and Gynecology

Olga Padron, MD

Family Medicine

Eva Perusquia, MD

Internal Medicine

Nadia Arias, MD

Pediatrics

Georgina Centeno, MD

Obstetrics and Gynecology

Terrance Hack, MD

Internal Medicine

Juana Lucio, MD

Family Medicine

Armando Moreno, MD

Obstetrics and Gynecology

Edgar Robles, MD

Family Medicine

Our Sub-Investigators

Tommy Matin, MD

Family Medicine

Michael Bogseth, MD

Urgent Care Medicine

Micha Rojany, MD

Gastroenterology