Prenatal Care

Golden Gate Obstetrics & Gynecology is a group practice where our providers work collaboratively and cohesively to provide the best care possible for you and your baby.

Our providers have days they work in the office and days they are on-call for deliveries at the hospital. Although your primary provider may not be on-call on the day you are in labor, please know that the physician delivering your baby shares your doctor’s philosophy. We generally recommend that you begin your prenatal care with your primary doctor and use the last trimester to schedule visits with the other physicians if you wish.

As part of our mission to provide the best prenatal care possible, we have phlebotomy services conveniently located within our office as well as access to radiology services across the hall from us. All necessary blood-work and ultrasound appointments can be coordinated with your prenatal visits, making Golden Gate OBGYN a one-stop-shop for busy women. Having all these services under one roof isn’t only accommodating to patients, it’s beneficial to physicians as well.  With the coordination of services, our physicians have access to your results sooner!

Additionally, please use the following links for more information about prenatal care:


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  • “The first time I met Dr. Callen was for a 1st trimester ultrasound where she informed me I had MC. She was kind, professional, and accommodating to next steps. I believe due to Dr. Callen's competence and kindness, I have a beautiful baby girl today. She wasted no time in getting us on a path to a healthy pregnancy. The best of the best!”

    —Eileen M.
  • “I saw Ramona Rule today for the first time as a new patient. The whole process is so easy at GG OBGYN. Ramona was patient, kind, understanding, and knowledgeable. I am so glad my friends referred me to this office and so glad I found a doctor I am so comfortable with.”

    —Haley B.
  • “The office itself is busy, modern, and clean. The staff is very polite, friendly, and organized. They are always on top of my medical care and next steps. When papers needed to be signed and approvals made, Cynthia and Judy were in constant contact with me, and they both went out of their way to help me. Make an appt and see for yourself!”

    —Allison D.

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Contact Us

1725 Montgomery Street
Suite 200
San Francisco, CA 94111

Tel: (415) 666-1250
Fax: (415) 398-2696