Welcome to Riverwalk OBGYN

Overall patient rating:

In 1979 Tristan Castaneda, MD started with a simple premise: Make available to every woman the health resources she needs to live a healthy, active, and long life. At the same time, educate each woman about the importance of preventative health measures. This same idea still drives us today, some 30 years later. The track record we’ve accumulated over the years speaks to our commitment to patients, their families, and the community at large. Both our medical and office staffs are second to none, who genuinely take an interest in individual patient’s needs. We think you’ll notice the difference immediately when you step foot inside our doors. We’d love to see you today to map out a health and wellness plan that’s tailored to your health history and needs.

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About Our Practice

  • Providers

  • Services

  • Links And Forms

  • Locations

  • Contact Us

  • Alka Arya Degaetano

    DO
  • Ricardo Munoz

    MD
  • Stephanie Schaefer

    MD
  • Christina Simpson

    MD
  • Heather Williams

    MD

We Provide The Following Services

  • Obstetrics + Reproduction
  • Pregnancy Care and Delivery
  • Contraception
  • Ultrasound and Imaging
  • Gynecology + Wellness
  • Annual Exams
  • Menopause
  • Urogynecology

Riverwalk OBGYN: San Antonio Office

  • Monday: 8:30AM - 5:30PM
  • Tuesday: 8:30AM - 5:30PM
  • Wednesday: 8:30AM - 5:30PM
  • Thursday: 8:30AM - 5:30PM
  • Friday: 8:30AM - 5:30PM

Send Us a Message

    Patient Reviews

    Overall patient rating for Riverwalk OBGYN:

    Office Visit / Follow-up

    Dr Simpson is thorough and is very personable. She explains things very well and takes time with her patients.

    OB Care

    Always takes care of me.

    Gynecological Exams

    Front office staff was very kind when I arrived . Every person was helpful and welcoming. I have been a patient for years and been very happy . Dr. Arya made is patient and I felt that she really listened to me

    Office Visit / Follow-up

    Stephanie shows concern for her patients. She listens to my concerns and offers information on how to it. i feel comfortable with her.

    Annual Well Woman Exam

    Wait time was minimal. Doctor courteous and professional. She takes time to explain and asks for questions. Personnel courteous and professional.

    Annual Well Woman Exam

    Dr Simpson was the best!

    Annual Well Woman Exam

    Love Dr Munoz he is so nice and patient and make me feel so comfortable explaining all the procedures.

    Pap Smear

    He’s the best doctor I’ve had.

    Gynecological Exams

    Doctor Munoz is a great doctor. He cares very much and hears everything you have to say and finds solutions to get better.

    Pap Smear

    I've been a patient since 1988....From Dr. Tristan Castaneda to Dr. Ricardo Munoz! They are great doctors, very knowledgeable, I'm a very satisfied patient