Our Investigators

Principal Investigators

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Augusto Focil, MD, MPH

Internal Medicine
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Oxnard, CA
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Karen Simon, MD

Gastroenterology
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Camarillo & Oxnard, CA
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Carey Chronis, MD, FAAP

Pediatrics
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Ventura, CA
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Sherif Aboseif, MD

Urology
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Oxnard, CA
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Preeti Chopra, MD

Allergy & Immunology
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Ventura & Oxnard, CA
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Koosha Mortazavi, MD

Nephrology
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Oxnard, CA
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Manoj Khatore, MD, FACC

Cardiology
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Oxnard, CA
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Bradley Hiner, MD

Neurology
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Oxnard, CA
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Tony Makhlouf, MD

Rheumatology
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Simi Valley, CA
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Thaidra A. Gaufin, MD

Infectious Disease
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Santa Barbar, CA
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Micha Rojany, MD

Gastroenterology
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Camarillo & Oxnard, CA
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Elias A. Tarakji, MD

Gastroenterology
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Arcadia, CA
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Dana Y. Pan, MD

Gastroenterology
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San Gabriel, CA
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Dr. Keval Shah, DO

Gastroenterology
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Santa Maria, CA
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Atul Vachhani, MD

Gastroenterology
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Santa Maria, CA
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Igor J. Nastaskin, MD

Gastroenterology
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Santa Maria, CA
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Oguchi Nkwocha, MD

Family Medicine
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Salinas, CA
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Elvira Lindwall, MD

Rheumatology
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Oxnard, CA

Our Sub-Investigators

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Sandra Tuero, MD

Urgent Care Medicine
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Oxnard, CA
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Michael Bogseth, MD

Urgent Care Medicine
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Oxnard, CA
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Justin Marasigan, DO

Gastroenterology
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Camarillo & Oxnard, CA
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Kelvin Wong, MD

Urology
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Oxnard, CA
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Kevin Lee, MD

Urology
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Oxnard, CA
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Prashant Verma Jr, MD

Allergy & Immunology
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Ventura, CA
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Steven Ledesma, MD

Nephrology
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Oxnard, CA
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Samuel Mourani, MD

Gastroenterology
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Glendora, CA
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Ken Nguyen, MD

Gastroenterology
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San Gabriel, CA
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Tim (Tien-Chun) Chen, MD

Gastroenterology
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Los Angeles, CA

Collaborating Groups

Most of our Principal Investigators and medical groups have multiple other doctors that assist with Chart Reviews.