New Search Back to Search Results 623508 Share Profile Mostafa S. Ilbeigi, MD Specialty Pain Medicine Additional Language Spoken English Medical Groups & Affiliations Premier Healthcare St. Mary High Desert Medical Group Phone (760) 242-3939 Address 18400 US Highway 18 Suite A Apple Valley, CA 92307 Get Directions Accepting New Patients Primary Office Address 18400 US Highway 18 Suite A Apple Valley, CA 92307 Get Directions Phone (760) 242-3939 Fax (760) 242-3232 Hours Mon - Fri: 9 a.m. - 5 p.m. More Information 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 Meet The Doctor Specialties & Education Primary Specialties Pain Medicine Back to Search Results