Sierra Health Center Pediatrics, Geriatrics, Family Practice, Gynecology is their Medial specialty. They are knowledgeable in the following conditions / disorders: Sexually Transmitted Diseases, Pregnancy & Childbirth. Sierra Health Center is located on 1801 Tully Rd Ste F1 in Modesto. They can be reached by phone by calling (209) 526-5770 . They can be reached by calling (209) 526-5770 . They can perform the following procedures / treatments: Immunizations. They have a single review on MojoPages.com, and it's a negative review.