Welcome to Green Valley OB/GYN

Overall patient rating:

Established more than 70 years ago, Green Valley OB/GYN is one of the oldest and most respected medical practices in the Triad. Our practice is comprised of board-certified obstetricians and gynecologists with decades of combined experience in caring for the healthcare needs of the women in Greensboro, North Carolina, and the surrounding areas.

In addition to providing a wide range of obstetric and gynecological services and procedures, the physicians and medical professionals at Green Valley OB/GYN have extensive experience in the management of both high- and low-risk pregnancies.

Their experience is backed by the group’s dedication to continued training and education. All members of our team use the latest minimally invasive surgical techniques and advanced laparoscopic and hysteroscopic surgical methods to solve many gynecological problems that formerly required major surgery.

We are committed to providing high-quality, patient-centered care to women in all stages of life from adolescence to post-menopause.

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About Our Practice

  • Providers

  • Services

  • Links And Forms

  • Locations

  • Contact Us

  • Sidney Callahan

    DO
  • Dyanna Clark

    MD
  • Michelle A. Horvath

    MD
  • Michelle Marinone

    MD
  • Kendra H. Ross

    MD
  • Robert M. Wein

    MD

We Provide The Following Services

  • Obstetrics + Reproduction
  • Pregnancy Care and Delivery
  • Contraception
  • Ultrasound and Imaging
  • Gynecology + Wellness
  • Annual Exams
  • Menopause
  • Urogynecology

Green Valley OB/GYN: Greensboro

  • Monday: 8:00 AM - 5:00 PM
  • Tuesday: 8:00 AM - 5:00 PM
  • Wednesday: 8:00 AM - 5:00 PM
  • Thursday: 8:00 AM - 5:00 PM
  • Friday: 8:00 AM - 5:00 PM

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    Patient Reviews

    Overall patient rating for Green Valley OB/GYN:

    Breast Exam

    Everyone pleasant and professional

    Annual Well Woman Exam

    New doctor for me and she asked critical questions to learn about me.

    Annual Well Woman Exam

    Dr. Clark is always amazing. She always has the information I need and a way to make whatever I am experiencing or need to talk about feel like I'm not a burden. She always has her patients best interest at heart and I could not ask for a better obgyn.

    Annual Well Woman Exam

    She is amazing and so is her staff. I know they makes notes but i always feel so welcome

    Annual Well Woman Exam

    Dr. Clark is so easy to talk to and listens thoroughly. I'm impressed with her attention to the details of my medical history. The nurse was extremely friendly. I was a long time patient then my GYN doctor retired at the same time I had some major non-female related health issues and didn't see a GYN for a couple of years. I tried going to another GYN practice that was under the same umbrella as all of my other providers so that everything was in one MyChart, however, they were not helpful, attentive, and didn't have mammogram capabilities on site so it was still disconnected. I knew I would get the care I needed and was looking for at GVOBGYN so here I am and am glad I returned to Dr. Clark. Thank you.

    Annual Well Woman Exam

    Dr Callahan spent time with me, and really seems to care about my well-being.

    Physical Exam / Check-up

    She was gentle and did not rush appointment.

    Gynecological Problem Visit

    Dr Horvalt is great doctor. She explains things so I can understand what my probelm is.

    Pap Smear

    We had a quick visit overall, but I felt heard and understood with the questions and issues I presented to her. She provided a prescription medication and even went the extra mile to confirm if my health insurance would cover it. Since they didn’t, she provided me a discount program to apply for. Instead of paying over $400, I was able to get the medication for under $20!

    Annual Well Woman Exam

    Dr wein is the best!