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

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    Patient Reviews

    Overall patient rating for Riverwalk OBGYN:

    Annual Well Woman Exam

    Dr Munoz has always been very professional and friendly. The wait time was great, the facility was clean and the staff was pleasant!!

    Review for Ricardo Munoz VI, MD

    Annual Well Woman Exam

    I appreciated how Dr. Munoz came in to talk to me first prior to the exam, made me feel more comfortable. Then he explained everything he was doing and seemed concerned about how i was feeling. Very kind Dr.

    Review for Ricardo Munoz VI, MD

    Return GYN Appointment

    Dr. Munoz and his staff are always pleasant and helpful. They are patient and knowledgeable.

    Review for Ricardo Munoz VI, MD

    Pap Smear

    I appreciate that Dr. Schaeffer always takes the time to find out what is going on and how well she listens. She gives good advice and assistance with regard to issues I am having.

    Review for Stephanie Schaefer, MD

    Annual Well Woman Exam

    Dr. Arya is amazing! Friendly, informative, knowledgeable. I can't recommend her enough!

    Review for Alka Arya-DeGaetano, DO

    Office Visit / Follow-up

    [Rating Only] I couldn’t say enough wonderful things about Dr. Munoz. With over 20 years of service for me I look forward to many more.

    Review for Ricardo Munoz VI, MD

    Routine Pregnancy / Prenatal Appointment

    All of the staff at Riverwalk OBGYN are always so kind and provide the best care every time I go to the office for my appointments!

    Review for Stephanie Schaefer, MD

    Annual Well Woman Exam

    Dr. Arya is always welcoming and caring. She makes sure I’m comfortable and understanding of my situation. She answers any questions I have and assure I understand everything. Her staff is always polite when taking my vitals. I have been coming to Dr. Arya for 6 years now and I’m glad I found this clinic.

    Review for Alka Arya-DeGaetano, DO

    Annual Well Woman Exam

    Dr Simpson is an excellent physician however I was told I was the only patient and she’d be right in but then waited 30 mins in the gown for her to show.

    Review for Cristina Simpson, MD

    Pap Smear

    Dr. Arya is a pleasure to see as a patient. She kindly asks questions and gives easy to understand medical advice.

    Review for Alka Arya-DeGaetano, DO

    Overall patient rating:

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