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Beth Aban, CRNA
Anesthesia
Sarah Aboueljoud, PA-C
Plastic Surgery & Aesthetics
Jean Acabal, CRNA
Anesthesia
Philip Alian, NP-C
Gastroenterology
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Dhuha Alhankawi, MD
GASTROENTEROLOGY & HEPATOLOGY
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Jim Amerian, MD
Gastroenterology
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Gary Annunziata, DO
Gastroenterology
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Mohammad Arbabi, MD
Retired, Gastroenterology
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Shruti Ariza, MD
Gastroenterology
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R. Afiba Arthur, MD
Urogynecology
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Ardalan Babaknia, MD
Gastroenterology
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Ailyn Baldorado, NP-C
Gastroenterology
Anna Bareiss, MD
Otolaryngology/Otology
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Joshua Barnhill, MD
Pain Management
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Chelsey Beckley
Marketing Manager
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Fayth Bloomer, CRNA
Anesthesia
Amanda Bosley, CRNA
Anesthesia
Natalie Brown, CRNA
Anesthesia
Daniel Burgess, DO
General & Robotic Surgery
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Yi Cai, MD
Pain Management
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Rosecella Chambers, CRNA
Anesthesia
Daniel Chang, MD
Radiology
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Brian Chen, DO
Cardiology
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Philip Chen, MD, FACG, FASGE
Gastroenterology
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Howard Cheng, MD
Oncology
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Max Cho, MD
Neuroradiology
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Stacey Chobany, AuD
Audiology
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Jim Chou, MD
Gastroenterology
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Holly Contreras, MPAP, PA-C
Colorectal & General Surgery
Brooke Cossaboom, PA-C
Urgent Care
Darren Couture, CRNA
Anesthesia
Mara Custodio, PA-C
Gastroenterology
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Michael Davalos, PA-C
Urgent Care
Adam Deising, DO
Transplant Hepatology
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Athena Doss
Audiology Resident
Anh Duong, MD
Gastroenterology
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Thomas Eastman, DO
Retired, Gastroenterology
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Kaye Elamparo, NP-C
Neurosurgey
Katharine Eng, MD
Pediatric Gastroenterology
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Daniel M. Eshaghian, DO
Gastroenterology & Hepatology
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Krystal Farias
Practice Manager
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Sirus Farivar, MD, FACP, AGAF
Gastroenterology
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Daniel Fishel, DO, CAQSM
Sports Medicine & Primary Care
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April Fitzpatrick, CRNA
Anesthesia
Christopher Flannery, MD
Gastroenterology
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Mark Gabriel, DO
Gastroenterology
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Dan Garcia, CRNA
Anesthesia
Daniel Garza, MD
Radiology
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Avani Gokaldas, PA-C
Gastroenterology
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Dustin Gottfeld, PA-C
Gastroenterology
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David Ham, MD
Urgent Care
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Michelle Harris, RN
Clinical Director, United Surgery Centers
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Ashraf Hawari, MD
Radiology
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Melody H. Hermel, MD
Cardiology
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Colleen Herr, FNP-BC
Gastroenterology
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Nasser Heyrani, MD
Orthopaedic Surgery
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John Hong, MD, MBA, CEO
Chief Executive Officer | Gastroenterology
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Muntasir Hoque, MD
Radiology
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Galen Huang, MD, FACG
Gastroenterology
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Dalia Ibrahim, MD
Gastroenterology
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Ricardo Jimenez, MD
Pathology
Ken Jones, CPC, CASC
Director of Business Operations, United Surgery Centers
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Sumit Khandhar, DO
Cardiology
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Anthony Kim, MD, FAANS
Neurosurgery
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April King, CRNA
Anesthesia
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Lisa Kinney, MD
Urgent Care
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Rob Knipper, CRNA
Anesthesia
Koorosh Kooros, MD, AGAF
Pediatric Gastroenterology
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John Lah, MD
Gastroenterology
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Quan Lam, PA
Urgent Care
Jeanne Lammering, MD
Neuroradiology
John Larson, MD
Plastic Surgery
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Matthew Leach, MD
Otolaryngology (ENT)
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Scott H. Lee, MD
Gastroenterology & Hepatology
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Emma Lega, RN
Gastroenterology
Benjamin Leong, MD
General & Bariatric Surgery
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Brian S. Lim, MD, MCR, FACP, FACG, FASGE, AGAF
Gastroenterology
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Roxanne Lim, MD
Gastroenterology
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Kristi Lindsey, NP-C
Gastroenterology
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John Locke, MD
Orthopaedic Surgery
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Jennifer Loran, CRNA
Anesthesia
Cori Loonsfoot, RDMS
Imaging
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Nancy Lucas, DrAP, MBA, CRNA
Director of Anesthesia, Director of Operations
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Mike Lynn, CRNA
Anesthesia
Bahar Madani, MD
Gastroenterology & Hepatology
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Debbie Malina, CRNA
Anesthesia
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Haley Martin, PA-C
Colorectal & General Surgery
Krista Mason, FNP-BC
Urgent Care
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Deidre McGannon, MHA, RDN, IFNCP
Registered Dietitian
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Anna Meneely, DPM, AACFAS
Podiatry & Foot/Ankle Surgery
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Kim Meraz, CRNA
Anesthesia
Ranjeet Minocha, MD, FACAAI
Allergy & Immunology
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Vinod Mishra, MD
Gastroenterology
Jesse Myers, ANP-BC
Gastroenterology
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Alan J. Naim, MD
Gastroenterology
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Sarah Nasher, NP-C
Gastroenterology
Seyedehsan “Ehsan” Navabi, MD
Gastroenterology
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Kassandra Neuendorff, PA-C
Colorectal & General Surgery
Laura Nieves, MD, MPH, FACP
Internal Medicine
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Stephen Oh, DO
Medical Director, United Pathology Labs
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Tara Oliveri, PA-C
Gastroenterology
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Adam Omahen, PA-C
Urgent Care
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Marco A. Paez, MD
Gastroenterology & Hepatology
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Mehri Pahlavani, CRNA
Anesthesia
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Shaelyn Painter, Au.D.
Audiology
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Patricia Park, MD
Endocrinology
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Amish Patel, MD
Radiology
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Jigar Patel, DO
Cardiology, Electrophysiology
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Nishant Patel, MD
Urology & Endourology
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Arup Paul, PA-C
Gastroenterology
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McKenna Perel, PA-C
Urgent Care
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Phuong Pham, MD
Plastic Surgery
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Morgan Phelps, MSN, FNP-BC
Gastroenterology
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Warren Pleskow, MD
Allergy & Immunology
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Jennifer Price, PA-C
Otolaryngology
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Yasmin Qasim, MD
Pathology
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Marsha Reuther, MD
Otolaryngology (ENT)
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Eunice Rhee, DO
Director of Medical Weight Loss
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James Rhee, MD, FACMT, FACEP, FAAEM
Toxicology
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R.L. Patrick Rhoten, MD, FAANS
Neurological Surgery
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Paul Rogers, PA-C
Urgent Care
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Kathryn Ross, MD
Retired, Gastroenterology
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Suhail Salem, MD
Gastroenterology
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Bryan Sauter, PA-C
Gastroenterology
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Mark Schultzel, MD, MBA, FAAOS, FAOA
Orthopaedic Surgeon, Shoulder And Elbow Surgery
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Matthew Schultzel, DO
General & Colorectal Surgery
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Henry Sebata, MD
Neuroradiology
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Mahnaz Shahidi, MD
Pathology
Ahmad M. Shaban, MD
Gastroenterology
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Omar Shahbaz, MD, MS
Gastroenterology & Hepatology
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Huafeng Shen, MD
Gastroenterology & Hepatology
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Denise Sherk, FNP-C
Gastroenterology
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Aldric Shim, MD
Radiology
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Jennifer Sinclair
Fitness Director, United Medical Fitness
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Natalie Sloan, FNP
Gastroenterology
Harper Smith, PA-C
Colorectal & General Surgery
Colleen Stallmer, CRNA
Anesthesia
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David Stanton, MD
Gastroenterology & Hepatology
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Lynnette Thompson, RN, CNL
Gastroenterology
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Bojana Todorovic
Marketing Manager, Orange County
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VyThao Tran, MD
Radiology
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Arthur Uyesugi, MD
Otolaryngology (ENT)
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Annie Van Bourg, PA-C
Urgent Care
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David Wallace, PA-C
Gastroenterology
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Priscele White, NP-C
Gastroenterology
Judy Williams
Practice Manager
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Ashley Wong, DO
Pain Medicine & PM&R Physician
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Lisa Xu, MD, FAAD
Director, Dermatology & Laser Center
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Aileen Yang
Audiology Resident
Kevin Yoo, MD, FAANS, FACS
Neurosurgery
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Michael Zamora, PA-C
Urgent Care
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Tinoosh Zand, MD
Radiology
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