
Meet your specialist
Isam Balat, MD
A Houston OB/GYN for fifty years, recognized for many of them as one of the top gynecologists in the greater Houston area. His focus today is the care of women through perimenopause, menopause and beyond.
“The key element to a successful patient-physician relationship is to listen to the patient as she describes her symptoms. When I prepare a treatment plan, I take into consideration every factor as they relate to the patient: symptoms, clinical findings, patient beliefs and personality.”
Fifty years in Houston
Dr. Balat graduated from the University of Texas Medical Branch in Galveston in 1973 and completed his training in obstetrics and gynecology at the University of Texas Medical School at Houston. In 1976 he began private practice with Dr. John Armstrong and Dr. Richard Weilburg.
In 1998 he founded Plaza OB/GYN Associates in the Museum District. He later opened the Binz Surgery Center, where he performs minimally invasive surgery for fibroids, endometriosis and pelvic prolapse.
Across five decades he has cared for patients, their daughters and their friends. That continuity shapes how he practices menopause medicine: he has seen what happens when symptoms are dismissed, and what changes when they are taken seriously.
Areas of focus
Menopause and hormone therapy
Individual evaluation and treatment through every stage of the transition, including hormone and non-hormonal options. About menopause care.
MonaLisa Touch
Among the first Houston physicians to offer the MonaLisa Touch, a hormone-free laser treatment for vaginal dryness and atrophy in women who are menopausal, have had a hysterectomy, or are breast cancer survivors. About the MonaLisa Touch.
Endometriosis
A lifetime member of the Endometriosis Association, Dr. Balat diagnoses and treats endometriosis medically and with minimally invasive surgery. About endometriosis care.
Ovulation, infertility and PCOS
An infertility and ovulation induction specialist, with long experience managing polycystic ovary syndrome. About PCOS care.
Education
- Medical school
- University of Texas Medical Branch, Galveston. Doctor of Medicine, 1973.
- Residency
- Obstetrics and Gynecology, The University of Texas Medical School at Houston.
- In practice
- Since 1976. Founded Plaza OB/GYN in 1998.
Professional associations
- ACOG, The American College of Obstetricians and Gynecologists
- AAGL, American Association of Gynecologic Laparoscopists
- ASRM, American Society for Reproductive Medicine
- AMA, American Medical Association
- TMA, Texas Medical Association
- HCMS, Harris County Medical Society
- HGOS, The Houston Gynecological and Obstetrical Society
- IPAM, International Association for Physicians in Aesthetic Medicine
- The University of Texas Medical School at Houston Alumni Association, lifetime member
Core Member, The Menopause Association
Dr. Balat and Plaza OB/GYN are verified Core Members of The Menopause Association, a national nonprofit dedicated to raising the standard of menopause care. He also writes for its patient publication, Redefining Menopause, including why the body resists weight loss during perimenopause.

Your care team
Angela Montgomery, MSN, NP
Angela is a board-certified nurse practitioner providing compassionate, personalized women's health care at Plaza OB/GYN. She believes in building trust by listening, respecting each patient's goals, and creating an individual plan in a supportive setting.
Her work includes menopause management, well-woman exams and preventive care. She has a special interest in the diagnosis and management of endometriosis and other chronic gynecologic conditions, and understands the physical and emotional toll they can take on everyday life.
Angela earned her Master of Science in Nursing, Family Nurse Practitioner, from the Cizik School of Nursing at UTHealth Houston, after a Bachelor of Science in Nursing from The University of Texas at Tyler. She is board certified by the American Academy of Nurse Practitioners and licensed in Texas as an Advanced Practice Registered Nurse and Registered Nurse.
Areas of care
Book with Dr. Balat's team
Book a visit at the Binz Street office, or start with an online consultation if you would rather talk first.