New Search 13422 Practice accepting new patients. Ari R. Youderian, MD (949) 586-3200 Primary Specialties Orthopedic Surgery Medical Groups & Affiliations Mission Heritage Medical Group Mission Hospital Affiliated Physicians Primary Office Address: So. County Orthopedic Specialists 24331 El Toro Rd. Suite 200 Laguna Hills, CA 92653 Phone: (949) 586-3200 Fax: (949) 900-2145 Secondary Office Address: Petaluma Office 1383 N. McDowell Blvd. Suite 100 , Recommend 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 Education Medical School: University of Illinois, College of Medicine Internship: University of Illinois - 2007 Residency: University Of Illnois - 2011 Fellowship: Cleveland Clinic Hospital - 2012 Board Certification: American Board of Orthopedic Surgery