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.

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. Arya is very professional. She listens to your concerns and never seems to be in a rush. Impeccable bedside manners!

    Annual Well Woman Exam

    Dr. Simpson took the time to be detailed and looked at my health as a whole.

    Annual Well Woman Exam

    Dr. Stephanie Schaefer takes her time with each patient, which is very hard to find these days.

    Annual Well Woman Exam

    Dr. Munoz has performed a couple of procedures on me. I have been receiving his excellent care for uterine issues such as polyps, endometriosis, and fibroids.

    Annual Well Woman Exam

    Dr. Munoz has a great bedside manner and takes time to answer my questions.

    Annual Well Woman Exam

    She is awesome!! I'm not uncomfortable during my exam. She listens to your concerns and provides referrals for anything that will help resolve your issue. Would not trade her for any other doctor!

    Prescription Medication / Rx Refill

    I felt like a valued individual and my questions as well as my treatment were treated in a professional, caring manner.

    OB Care

    She’s a great doctor

    Gynecological Exams

    Doctor muñoz is amazing he always responds to all my questions ... always provide me the best care I am glad his my doctor ..

    Annual Well Woman Exam

    Doctor Simpson was very thorough and spent time to discuss and address concerns. She is very kind, thoughtful, assuring, and caring.