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.

Book Appointment

About Our Practice

  • Providers

  • Services

  • Links And Forms

  • Locations

  • Contact Us

  • Sidney Callahan

  • Dyanna Clark

  • Michelle A. Horvath

  • Michelle Marinone

  • Kendra H. Ross

  • Robert M. Wein


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

Send Us a Message

    Patient Reviews

    Overall patient rating for Green Valley OB/GYN:

    Gynecological Problem Visit

    I enjoy the practice overall. I have been with the practice for 14 years.

    Office Visit / Follow-up

    Dr. Horvath was patient enough to discuss and explain the diagnosis and treatments recommended.

    Annual Well Woman Exam

    Dr. Horvath is very knowledgeable and always friendly.

    Annual Well Woman Exam

    Clean environment, friendly staff and Dr. Callahan was amazing. She took time to chat with me and become familiar with my medical history as we is now my new MD since Dr. Anderson retired.

    Annual Well Woman Exam

    Competent staff. Friendly and efficient.

    Annual Well Woman Exam

    Staff & Dr Wein is always good to me.


    Pleasant staff. Was talked through everything. Comfortable Environment

    Annual Well Woman Exam

    She seems to remember who i am year after year, and takes the time to listen to my issues.

    Annual Well Woman Exam

    I was late due to work. They were understanding and kind. They got me in and out quickly.

    Annual Well Woman Exam

    Everyone was friendly and polite and I did not feel rushed to get in and out.