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:

    Gynecological Problem Visit

    My appointment was for a check up on an existing issue. Dr Munoz always asks about other issues as well. He takes the time to listen and I never feel rushed.

    Review for Ricardo Munoz VI, MD

    Advanced Laparoscopic Surgery

    Dr Simpson took care of me when I was diagnosed with Endometriosis. She performed my laparoscopic surgery and removed all my fibroids and large myomas. She was available to me when I needed her during my recovery and I now, thanks to her.. my husband and I were finally able to conceive our first child. I am happy to report that I am 28 weeks into my pregnancy and I couldn’t be more grateful.

    Review for Cristina Simpson, MD

    Advanced Laparoscopic Surgery

    Great doctor

    Review for Alka Arya-DeGaetano, DO

    Lab Work

    Dr. Simpson was very understanding and caring about my medical needs. The entire staff at the clinic has always been friendly and helpful.

    Review for Cristina Simpson, MD

    Office Visit / Follow-up

    Dr. Simpson has been my doctor for 16 yrs now. She is kind, knowledgeable and a expert in her field.

    Review for Cristina Simpson, MD

    Gynecological Exams

    Dr. Schaffer is amazing. She listens to every concern and is willing to go the extra mile to help out

    Review for Stephanie Schaefer, MD

    Annual Well Woman Exam

    They are very nice good customer service all the time

    Review for Alka Arya-DeGaetano, DO

    Gynecological Exams

    The staff was very nice & knowledgeable. Dr. Arya-Degatano is always so welcoming & thorough with her check ups.

    Review for Alka Arya-DeGaetano, DO

    Annual Well Woman Exam

    Dr. Cristina Simpson is always very personable. She is truly concerned for your well being.

    Review for Cristina Simpson, MD

    Annual Well Woman Exam

    I really like Dr. Simpson. She just makes me feel comfortable while having to go through an exam that is not comfortable!

    Review for Cristina Simpson, MD

    Overall patient rating:

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    Telehealth Appointments Available
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