Patient portal Bill pay Patient support Click to expand or collapse content Select your state. Arizona. ... Oceanside, CA 3 Optum providers ... Obstetrics and gynecology. 1-760-941-1440. 1-760-941-1440. View Profile. Rahele Mazarei, DO. Obstetrics and gynecology. 1-760-941-1440. 1-760-941-1440. View Profile. All providers. CA. Oceanside; Find ....