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Metabolic Clinical Team 

The Metabolic Team



Philippe J. Quilici, MD, FACS, Chief MIS Service


Philippe J. Quilici, MD, FACS, is an attending physician with the Department of Surgery at Providence St. Joseph Medical Center and Cedars-Sinai Medical Center. Dr. Quilici specializes in minimally invasive procedures, such as interventional laparoscopic surgery and laparoscopic bariatric surgery. Dr. Quilici is the Chair of the Providence Saint Joseph Health System Digestive Health Institute and the Chair of the PSJMC, MIS-Ba Surgical Service.


A board-certified surgeon, Dr. Quilici has focused his research on various laparoscopic techniques, laparoscopic instrument design, the surgical management of morbid obesity, and gastric bypass surgery. He has presented has authored several books on minimally invasive surgery, including Second Generation Laparoscopic Procedures, New Developments in Laparoscopy and Interventional Laparoscopy: The State of the Art for the New Millennium. He has also written articles for such peer-reviewed publications as American Surgeon, Contemporary Surgery, Surgical Endoscopy, etc. He is a member of the American Medical Association, American College of Surgeons, New York Medical Society, Society of American Gastrointestinal Endoscopic Surgeons, and the American Society of Bariatric Surgeons. 


Dr. Quilici received his bachelor's degree from College des Lyces in Avignon, France, and his medical degree from Aix Marseille University in Timone, France. He completed his internship and residency in general surgery at Lenox Hill Hospital in New York, and he completed his fellowship in cardiothoracic surgery at Cedars-Sinai Medical Center.


Alexander Tovar, MD​


Alexander S. Tovar, MD is an attending surgeon at Providence St. Joseph Medical Center. Board-certified by the American Board of Surgery, Dr. Tovar is also a diplomat of the National Board of Medical Examiners.

Dr. Tovar received his bachelor's degree from the University of Southern California (USC) and his medical degree from Harvard Medical School. He completed an internship and residency at Los Angeles County + USC Medical Center.


Clinical Team: Nurse Practitioners


- Tiffany Herrera, NP, Program Manager

- Drashti Jani, NP-C

- Denise Guzman, NP-C

Support Services

- Danielle Russell, Manager, Metabolic Services

- Dr. Monica McCoy, Psychological Support Services

- Joanna Holguin, Coordinator, Bariatric Wellness Centers



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