Dr. Caroline Colin is an OB/GYN serving the Santa Monica, California area. Dr. Colin is highly experienced in many areas of obstetrics and gynecology, including HPV testing and treatment, intrauterine devices, STD testing, birth control of all types, Pap smears, family planning, prenatal care, gynecologic surgery, and much more.Meet Dr. Colin‧Services‧Testimonials‧Contact‧Parking‧Pap Smear.