New Search 8716 Practice accepting new patients. Khoi N. Nguyen MD (760) 242-3768 Primary Specialties Gastroenterology (Board Certified) Secondary Specialties Internal Medicine (Board Certified) Medical Groups & Affiliations Premier Healthcare St. Mary High Desert Medical Group St. Mary Medical Center Victor Valley Global Medical Center Additional Languages Spoken English, French, Vietnamese Primary Office Address: 15982 Quantico Road Suite F Apple Valley, CA 92307 Phone: (760) 242-3768 Fax: (760) 242-5601 Hours: M-F:8 a.m. to 5 p.m. Recommend this Physician Request an Update for this Physician Get Directions The patient rating score is based on responses and comments from Press Ganey. Responses are measured on a 10 point scale, with 10 being the best score. These scores are then translated to a 5 point scale in order to display results in a 5 Star rating. Comments are also gathered from the same survey and displayed in their entirety with the exception of any language that may be considered libel, or may contain private health information, or is unrelated to the provider being reviewed. Learn more about Press Ganey star rating calculations Physician Bio Patients Age Limitations Adults: 18 and over Education Medical School: University of Saigon , Vietnam Residency: University of Oklahoma - Oklahoma City, OK Fellowship: University of Oklahoma - Oklahoma City, OK Board Certified in Gastroenterology Board Certified in Internal Medicine Certifications Medical Society Membership AGA ACP Insurance ID Numbers Accepts all insurance, contact office to confirm.