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.

Book Appointment

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:

    Annual Well Woman Exam

    Dr. Schafer is super patient and very helpful and understanding to her patients needs. Highly reccomend her to others.

    Review for Stephanie Schaefer, MD

    Annual Well Woman Exam

    Dr Schaefer is extremely professional, patient and through. She ensured to answer all my questions. She very knowledgeable and I highly recommend her.

    Review for Stephanie Schaefer, MD

    Annual Well Woman Exam

    Very comfortable with Dr

    Review for Alka Arya-DeGaetano, DO

    Pelvic Organ Prolapse

    Medical Assistant or professional they know what they or doing! Dr Simpson has been my Dr for more than 20 yrs if something is wrong she is very honest how I can treated how I caught it and what not to do if I choose

    Review for Cristina Simpson, MD

    Gynecological Problem Visit

    Dr. Schaeffer is great and took time to answer my questions and provide what I needed.

    Review for Stephanie Schaefer, MD

    Hysterectomy

    Dr. Schaefer takes great care of me. She always listens and she is truly concerned. She has helped me to become a healthier version of me. I truly appreciate her so very much. I wish other doctors I see, would even have a tenth of concern. I would love to say thank you for taking care of me.

    Review for Stephanie Schaefer, MD

    Annual Well Woman Exam

    Love Dr. Munoz and the care he provides.

    Review for Ricardo Munoz VI, MD

    IUD Insertion / Removal

    Dr. Munoz has been with me for years. He is always kind and gentle. He does not do anything without explaining throughly to me. He answers all my questions and is very informative.

    Review for Ricardo Munoz VI, MD

    Office Visit / Follow-up

    I used to be Dr. Williams patient and had seen Dr. Simpson a few times and glad I can have her as my Dr. now. She has great bedside manner and listened and understood what was going on with me. We set up a plan and hoping we get answers. Highly satisfied with my visit

    Review for Cristina Simpson, MD

    Obstetrical (Pregnancy) Ultrasound / Sonogram

    La doctora Cristina Simpson is muy amable y muy atenta an mis preocupaciones sobre mi embarazo contesta mis preguntas y dudas. Yo recomiendo a la doctora Simpson porque esta siempre atenta a tus necesidades y preocupación sobre tu embarazo es muy amable y amigable. [Translation: Dr. Cristina Simpson is very kind and very attentive to my concerns about my pregnancy and answers my questions and concerns. I recommend Dr. Simpson because she is always attentive to your needs and concerns about your pregnancy and is very kind and friendly.]

    Review for Cristina Simpson, MD

    Overall patient rating:

    Languages Spoken By This Provider:

    Accepts New Patients
    Not Accepting New Patients
    Telehealth Appointments Available
    Telehealth Appointments Not Available

    Find By:

    Make an Appointment