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

    She is very caring and friendly. She takes the time to listen to you and help you get the help you need. You are one in a million. You are more than just a doctor. You are a human being a friend. You care for the people that you are taking care of. Thanks so much.

    Review for Alka Arya-DeGaetano, DO

    Annual Well Woman Exam

    Appointment was thorough and efficient. Dr Muñoz listens and addresses all concerns.

    Review for Ricardo Munoz VI, MD

    Annual Well Woman Exam

    Dr. Schaefer was very thorough. She explained things clearly and answered my questions during my visit.

    Review for Stephanie Schaefer, MD

    Pap Smear

    Staff is friendly and helpful. The wait time to see the doctor was not very long.

    Review for Cristina Simpson, MD

    Annual Well Woman Exam

    personalized,efficient

    Review for Ricardo Munoz VI, MD

    Annual Well Woman Exam

    Dr. Simpson has been my provider for yours. Amazing doctor.

    Review for Cristina Simpson, MD

    Gynecological Problem Visit

    Love Dr. Arya.

    Review for Alka Arya-DeGaetano, DO

    Lab Work

    Dr Munoz was very patient and detailed and took time in explaining outcomes.

    Review for Ricardo Munoz VI, MD

    Annual Well Woman Exam

    All the staff were so friendly and I really appreciate the one on one relationship with Dr Simpson . The new office was clean and closer to my house.

    Review for Cristina Simpson, MD

    Annual Well Woman Exam

    Always love my visit with Dr. Simpson. Never fun to get a gyn exam but always great visiting with her.

    Review for Cristina Simpson, MD

    Overall patient rating:

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    Accepts New Patients
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    Telehealth Appointments Available
    Telehealth Appointments Not Available

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