Our Physicians

Michelle Marinone, M.D.

Dr. Marinone is originally from Massachusetts. She then moved to California where she obtained her undergraduate degree at Westmont College and her medical degree at Loma Linda University. She completed her OB/GYN residency in Danbury, Connecticut.

Her interest in global health inequities has taken her all over the world, where she’s been able to witness the profound impact of empowering women to take charge of their own health. She enjoys all stages of women’s healthcare, from adolescence and the reproductive years through menopause and beyond. She is particularly interested in low- and high-risk pregnancies, minimally invasive gynecologic surgery, and the prevention of chronic disease through lifestyle changes.

In her free time, she loves spending time outdoors with her husband and two dogs. She enjoys hiking, gardening, and experimenting with plant-based cooking and dining.

Certification: American Board of Obstetrics and Gynecology

Medical School: Loma Linda University School of Medicine

Residency: Danbury Hospital

Membership:  American College of Obstetrics and Gynecology

Sidney Callahan D.O.

​​Dr. Sidney Callahan is a board-certified Ob/Gyn, who joined Green Valley Ob/Gyn in 2012. She graduated from the University of New England College of Osteopathic Medicine and completed her residency at Abington Memorial Hospital in Pennsylvania. She is also a board-certified Lifestyle Medicine Physician, completing her training in 2020.

She completed a Master’s Degree in Public Health from Johns Hopkins University. During that time, she received a university grant to pursue public health research in Haiti. She has since worked on additional projects in India and Uganda.

She is a 200-hour certified yoga instructor, follows a whole food plant-based diet, and helps her patients achieve optimal health through lifestyle changes geared toward the prevention of disease.

In her free time, she enjoys hiking and is making her way up the Appalachian Trail. You may find her on Greensboro’s local trails mountain biking or trail running. She completed her first marathon in 2019. She also loves quiet time at home sewing, experimenting with healthy affordable meals, and spending time with family and friends.

Certifications: Junior Fellow of the American Board of Obstetrics and Gynecology
Medical School: University of New England, ME
Graduate School: Johns Hopkins Bloomberg School of Public Health, MD
Residency: Abington Memorial Hospital, PA
Memberships: American College of Obstetrics and Gynecology, American Osteopathic Association, Physicians Committee for Responsible Medicine, American College of Lifestyle Medicine

Michelle A. Horvath, M.D.

Dr. Horvath joined Green Valley Ob/Gyn in 2003. She had previously been in private practice in Abingdon VA where she had fulfilled an Underserved Area Scholarship for four years. Dr. Horvath first became interested in Ob/Gyn while at the University of Virginia where she found that the discipline provided a unique opportunity to treat women with surgical and medical therapies while helping to maintain their health over the long term. During her residency at the University of Texas at Houston, Hermann Hospital, she became proficient at colposcopy, high-risk obstetrics, laparoscopy, and urogynecology. Since 2011, she has added Robotic Surgery with the DaVinci system to her expertise and can offer minimally invasive surgeries such as total laparoscopic hysterectomy and myomectomy. Her practice includes women from adolescence to menopause and her focus is on total health for her patients.

Dr. Horvath has shown leadership in her profession by actively being involved in areas outside the office. Since 2014 she has been involved in the largest single-specialty Ob/Gyn group in the country, Unified Women’s Health, and has been Chair of the North Carolina section recently. She is also active in the Gyn Triad Committee and now co-leads the Robotic Quality Counsel of Cone Health.

In her recreation time, Dr. Horvath is an avid cyclist. She has raced in triathlons and cyclocross and rides every chance she can. She has also completed 3 marathons and in 2011 completed Iron Man Lake Placid, New York. She also loves golf, scuba diving, and traveling. She believes in maintaining a healthy, active lifestyle and hopes to encourage and inspire her patients to do the same.

Certification: American Board of Obstetrics & Gynecology
Medical School: University of Virginia Health System, 1995
Residency: University of Texas at Houston/Hermann Hospital
Membership: NC Medical Society, American College of Obstetrics and Gynecology (Fellow)

Lucey Gavlinski, M.D.

I am Dr. Lucey Gavlinski and I am thrilled to join the Green Valley OB-Gyn team and serve the Greensboro and Triad community! Prior to finding my life’s work in medicine, I obtained a Master’s degree in International Development at Tulane University in New Orleans and worked in international public health and disaster response. I attended medical school at Louisiana State University School of Medicine in New Orleans and then completed my training as a full-spectrum obstetrician and gynecologist at Mountain Area Health Education Center in Asheville, North Carolina.
I am passionate about open communication and connection with my patients. I want to earn your trust and partner with you; whether it’s through your pregnancy and birthing journey, your quest to find the best birth control option for you, or your voyage through the ebbs and flows of perimenopause, menopause, and beyond. I believe in providing compassionate, evidence-based care that is individualized to each patient’s needs, desires, and experiences. My special clinical interests include vulvar disease, pelvic pain, gender diversity, family planning, and surgical modalities including minimally invasive robotics.
Outside of the clinic, hospital, and operating room, I love spending time with my husband, daughter, and our pit bull, Zia. We love traveling, both to spend time with friends at our old stomping grounds in New Orleans and to new places in the U.S. and abroad.