Women Health Care Center of Houston About Us


We have five Obstetrician/
Gynecologists available for complete care of our female patients.

Byron B. Holt, M.D., F.A.C.O.G

Byron B. Holt Dr. Holt, a Board Certified Obstetrician and Gynecologist, is a graduate of Baylor University and the University of Texas Medical Branch in Galveston. Dr. Holt is a member of many medical organizations and is a Fellow of the American College of Obstetrics and Gynecology. He pioneered the concept of bringing fathers in the delivery room, as well as designed the first birthing room concept in Houston. Dr. Holt has helped to develop laser surgical techniques in infertility and has established a reproductive and endocrine program to assist in the research and treatment of premenstrual syndrome.

Born in Dallas, Dr. Holt grew up the son of a Baptist minister and has always been called by the nickname, "Spike". Dr. Holt has been married to his high school sweetheart, Sherley, for over 40 years. They enjoy family getaways to Rockport to sail and fish with their children and grandchildren.

Dr. Holt is known by his patients as a very compassionate and understanding man, with great regard to the well being and health of all his patients. For the past several years Dr. Holt has been the organizer of a team of medical staff, which travel to the mountains of Guatemala and Honduras, to perform surgeries for the people of the indigenous Mayan Indians. His staff of volunteers perform multiple, complicated surgeries in just a few days, with minimal equipment and medicines in very limited facilities.

Recently, Dr. Holt was invited by the Ambassador of Kuwait to organize a team of qualified Doctors to travel there and perform medcial procedures, typically unavailable to the people of Kuwait. The trip was made earlier this year and with a warm reception from their people, was a great success.

M. Elizabeth Hienaman, M.D., F.A.C.O.G.

Elizabeth HienamanDr. Hienaman, a Board Certified Obstetrician and Gynecologist, joined Women’s Health Care Center of Houston in July 1994. She completed her residency at Lyndon Baines Johnson General Hospital with the University of Texas Medical School at Houston. She received her Bachelor’s Degree at the University of Texas at Austin in Medical Technology, and earned her Doctorate from Texas Tech University Health Sciences Center School of Medicine in 1990.

Dr. Hienaman was raised in Rosenberg, Texas where she graduated from Lamar Consolidated High School in 1981. Now living in Katy, she enjoys sharing her spare time with her husband and son. Her interests outside of medicine include classic car shows, enjoying the outdoors, local fairs and festivals.

Todd M. Holt, M.D., F.A.C.O.G.

Todd M. Holt, M.D., F.A.C.O.G. Dr. Todd Holt, a Board Certified Obstetrician and Gynecologist, is a graduate of the McCombs School of Business at the University of Texas in Austin. He completed both medical school and his residency training in Obstetrics and Gynecology at the University of Texas Medical Branch in Galveston, and served as Chief Resident in his senior year.

Dr. Holt, (aka “Dr. Todd”) is a native Houstonian, and is thrilled to have the opportunity to practice medicine with his father, joining the practice in 2005. Dr. Holt is a family man, his wife a practicing Psychiatrist in the West Houston/Memorial City area, and is a proud father to his son. He enjoys spending his free time with his wife and family, teaching his son all about fishing, sailing and the importance of college football.

Michael D. Hold, M.D., F.A.C.O.G.

Michael D. HoldDr. Hold, a native Houstonian from the Spring Branch area, comes to us from University of Texas Medical Branch in Galveston after serving as Chief Resident during his residency training in Obstetrics and Gynecology. He also received his Doctorate of Medicine at the same University, with an undergraduate degree in Marine Biology at Texas A & M University in Galveston. Joining our practice in 2007, Dr. Hold was recently nominated as “Physician of the Year” at the Memorial Hermann Memorial City Hospital. He was very pleased with the opportunity to return to Houston and join our practice, as well as to be closer to his family and friends. Dr. Hold is very well liked by his patients and enjoys establishing and building lifelong relationships with his patients and their families.

Dr. Hold enjoys spending time with his new bride, who recently graduated from her Psychiatry residency program in Galveston. His favorite hobbies include outdoor activities such as camping, hiking and fishing. He also enjoys listening to live music and the arts. Dr. Hold is bilingual in English and Spanish.

Monique V. McKnight, M.D., F.A.C.O.G.

Monique V. McKnight, M.D.

Dr. McKnight joined WHCCH in September 2008. She is a native Houstonian who attended Lamar High School where she graduated in the top of her class. She received her undergraduate degree in Mathematics from Grinnell College in Iowa . She attained her Doctorate of Medicine at Morehouse School of Medicine in Atlanta, Georgia .

Dr. McKnight completed her residency training in Obstetrics and Gynecology at the University of Texas Medical Branch in Galveston. She also provided healthcare in South Africa to the underserved natives. Needless to say, she is overwhelmingly excited to be back home serving her community. During her youth, Dr. McKnight realized that her purpose and passion is to improve the health of all women. She believes that preventive management, staying abreast of current evidence based medicine, and prayer should always be the foundation of excellent patient care.

Dr. McKnight looks forward to meeting you and your family, and wishes to offer you her surgical skills, medical expertise, and compassionate care. She is especially passionate about educating your young adolescent girls about how to love themselves and protect their health. So please bring your daughters, granddaughters, nieces, and more to visit with her and she will definitely help you open up the doors of communication and prevention.




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Nurse Practitioners

Five registered Nurse Practitioners, working under the direct supervision of the physicians, are available for yearly PAP smear exams, breast screening, infection care, contraceptive management, etc.

Mary Helen Tolentino, RN, WHNP-BC

Mary Helen TolentinoMary Helen Tolentino, a certified OB/GYN Nurse Practitioner, joined the staff of WHCCH in 1994. Prior to moving to Houston, she practiced in the "the valley" in South Texas at Los Ebanos Women's Clinic from 1992 to 1994.

Mary Helen received her Nurse Practitioner degree from the University of Texas Southwestern in Dallas, Texas and her Associate in Nursing degree from the Pan American University in Edinburg. She speaks fluent Spanish as well as English, which is a great asset in Texas.

Her professional interests cover the whole range of gynecology and obstetrics including hormonal imbalance, teenager and post-menopausal concerns, as well as routine OB/GYN care. Mary Helen is married and has three children. She enjoys fishing, gardening, and crochet.


Joni L. Pheigaru, RN, MSN, PNNP

Joni L. PheigarutJoni L. Pheigaru, a Perinatal Nurse Practitioner, joined our staff in July 1996. From January 1986 until June 1996, she was Director of Women's Services, Coordinator of Women's Services-MHCS Women's Health Services Council, Perinatal Nurse Specialist at Memorial Hospital-Memorial City, Houston, Texas. From 1980 to 1986, she has worked and taught at the University of Nebraska Medical Center, St. Elizabeth Community Health Center, St. Luke's Episcopal Hospital in Houston, Park Plaza Hospital in Houston, UT Health Science Center in Houston, and American Healthcare Institute in Silver Springs, MD.

She received her Perinatal Nurse Practitioner degree at the University of Texas Health Science Center in 1996, Master of Science in Nursing, High Risk Perinatal-Administration from the University of Texas Health Science Center in Houston in 1988, and Bachelor of Science of Nursing in 1980 from University of Nebraska College of Nursing in Lincoln, Nebraska. Joni's field of expertise is perinatal and obstetrical care.


Patricia Bruha, RN, BSN, WHNP-BC

Patricia Bruha, RN, BSN, WHNP-BCPatricia Bruha joined our staff in 2003.  Patty’s professional interest and career in OB/GYN began in 1978 while employed at The Duluth Clinic in the Department of Obstetrics and Gynecology in her hometown of Duluth, Minnesota. She received her Baccalaureate Degree in Nursing from the College of St. Scholastica there in 1980, graduating summa cum laude.

Her certification as a Women’s Health Care Nurse Practitioner followed in 1985 from the University of Colorado, Health Sciences Center in Denver, Colorado.  She was in practice at Kaiser Permanente in downtown Denver until her family transferred to Houston in 1988.  She enjoyed life as a stay-at-home mom throughout the 1990’s until re-entering the profession with WHCCH.  Patty sees adolescent and adult obstetrical and gynecological patients for routine and urgent care. Her professional interests encompass the areas of wellness, infertility and reproductive endocrinology, nutrition, and mental health.  Due in part to the large aging female population, she also enjoys meeting the needs of the pre-menopausal and menopausal  patient.

Patty has a son and daughter and enjoys raising Shelties, listening to music, attending sports events, and travelling “up north” to spend time with relatives and friends.


Ruth Preece, RN, MSN, WHNP-BC

Ruth Preece, RN, MSN, WHNP-BCRuth Preece has been a certified Woman’s Health Care Nurse Practitioner since 1998, and originally was part of our staff from 2000-2003.  She rejoined our staff in July 2009.

Ruth received her Bachelor degree from University of Florida in 1980, and moved to Houston and began her nursing career at Methodist Hospital.  She worked in Labor and Delivery for several years before returning to south Florida.  She worked at Plantation General Hospital for 9 years as a labor and delivery nurse before returning to Houston once again in 1996.  She received her Master’s degree from the University of Texas Health Science Center-Houston in 1998.

Her professional interests encompass the entire OB-GYN spectrum, including obstetrical patients, teens, and menopausal women.  Ruth has two children, and two grandsons.  She enjoys travelling, skiing, music, college football, and spending time with friends and family.

Lisa Elliott, RN, MSN, WHNP-BC

WhccWe are pleased to announce
the 2011 addition of Lisa Elliot, RN, MSN, WHNP-BC to our provider staff.

Lisa brings 17 + years of OB/GYN experience as nurse and a Women's Health Nurse Practitioner.  In addition to her many years in community based clinical practice she brings experience in both Nursing and Research at MD Anderson, Baylor College of Medicine and the Memorial Hermann Healthcare System.

Lisa specialized in a wide spectrum of Women’s Health Care needs.  Lisa is trained in High-Risk obstetrical care and the needs of the Menopausal woman.  She also has training in biodentical hormone replacement therapy.  Her Master’s focused on teen pregnancy and education for young women.  Lisa’s goal is to help women’s health care needs across the spectrum of their life.


Regina Ney, RN, MSN, WHNP-BC


Regina Ney joined our staff in March 2013 as a Women's Health Nurse Practitioner. She is a native Houstonian and received her Baccalaureate Degree in Nursing from the University of Texas Health Science Center-Houston in 1985, graduating magna cum laude. She received her Master's Degree in Nursing as a Women's Health Nurse Practitioner from the same university in 2005.

She has over 25 years experience as a Labor and Delivery nurse, beginning her career at Hermann Hospital in the Texas Medical Center. In 1988 she joined the staff at Memorial Hermann Memorial City as the nurse manager of Labor and Delivery. In 1996 she transferred to Memorial Hermann Northwest where she was employed as both a staff nurse and Clinical Manager. After obtaining her nurse practitioner license she worked in the Baylor Teen Clinic system and with a private OB-GYN practice in northwest Houston prior to joining our staff. She has also had numerous educational responsibilities throughout her career, having taught fetal monitoring, neonatal resuscitation, as well as childbirth education.

Her professional interests include obstetrical care, infertility, and gynecological endocrinology. She has three children and five grandchildren. She enjoys listening to music, reading books, movies, and college football.



Staff Members

Trudy Carter, RN
Endocrine Counselor

Glenda Stallings, RN

OB Coordinator and Nurse Manager

Debra Carpenter, LVN
Surgery Coordinator

Margo Lawrence, LVN
Surgery Coordinator

Cynthia Flanagan
Supervisor, Financial Department

Michael Strickler
Director of Operations / Administrator