Pioneers in the Field: Learn About Our Infertility Doctors 

The infertility doctors at the Fertility Center of San Antonio have over 25 years of experience treating a wide range of fertility issues. Our doctors continue to study the latest technologies and techniques to bring our patients the highest quality reproductive assistance. To learn more about our services, contact our office today.

Joseph E. Martin, MD, FACOG

Dr. Joseph E. Martin

Joseph E. Martin, a native of Texas, earned a Bachelor of Arts degree in Zoology in 1959 from the University of Texas in Austin, Texas, and a M.D. degree in 1963 from the University of Texas in Galveston, Texas. He completed his internship at Herman Hospital in Houston, Texas in 1964. He then served as a Captain in the United States Air Force from 1964 to 1966, where he worked in Obstetrics and Gynecology. Dr. Martin then completed a three-year specialty training program in Obstetrics and Gynecology at Parkland Hospital in Dallas, Texas.

Dr. Martin joined the faculty of the University of Texas Health Science Center at San Antonio in 1969 as an Instructor, and subsequently as an Assistant Professor in the Department of Obstetrics and Gynecology. During that time, his sponsored research involved study of the actions of hormones at the cellular level. Dr. Martin entered the private practice of Obstetrics and Gynecology in San Antonio in 1972. He is a Fellow of the American College of Obstetrics and Gynecology and is certified by the Board of Obstetrics and Gynecology. He has served as Chairman of the Department of Obstetrics and Gynecology at Methodist Hospital. Dr. Martin helped form the Fertility Program at Methodist Hospital in 1986 and served as its Medical Director until 1990.

Over 20-years ago, Dr. Martin formed the Fertility Center of San Antonio (a private, office-based center with SART affiliation), and serves currently as the Medical Director. Dr. Martin has personally attended thousands of cycles (IVF, GIFT, ZIFT), and several thousand cycles of induction of ovulation with intrauterine insemination.

The Fertility Center of San Antonio was one of the first programs in the country to be office-based, and has had many first events, including the first ICSI pregnancy in the Southwest.

FCSA is accredited by the American Institute of Ultrasound in Medicine (AIUM). Dr. Martin is an active member of AIUM.

Gregory S. Neal, M.D., FACOG

Dr. Gregory S. Neal

Dr. Gregory S. Neal is a native of Texas and grew up in San Antonio where he graduated from Robert E Lee High School. He earned a Bachelor of Arts Degree in Biology in 1982 and a Master of Science Degree in Biochemistry in 1984 from Texas A&M University. In 1988, he earned an M.D. degree from Texas A&M College of Medicine, then completed his internship and residency in Obstetrics and Gynecology in the United States Air Force at Wilford Hall Medical Center, San Antonio, Texas in 1992. After proceeding to New York, Dr. Neal completed a fellowship in reproductive endocrinology and infertility at the New York Hospital-Cornell Medical Center in 1994, under the direction of Dr. Zev Rosenwaks. Dr. Neal joined the faculty in the Department of Obstetrics and Gynecology at Wilford Hall Medical Center, Lackland AFB, TX in 1994 and served as a Major in the United States Air Force until May 1999. He was the Chief of Reproductive Endocrinology and Infertility during his tenure at Wilford Hall and his duties included training the OB/GYN residents. He established a highly successful IVF program at Wilford Hall which is still in existence today. Dr. Neal is a Fellow of the American College of Obstetrics and Gynecology, and is Board Certified in Reproductive Endocrinology/Infertility and Obstetrics and Gynecology.

Matthew G. Retzloff, M.D., FACOG

Matthew G. Retzlof, M.D., FACOG

We are excited to announce that Dr. Matthew G. Retzloff has joined Dr. Martin and Dr. Neal as of Oct 1, 2014.  Dr. Retzloff, a native of San Antonio, Texas, earned his Bachelor of Science in biology in 1990 from the United States Air Force Academy and a M.D. degree in 1994 from the University of Texas Southwestern Medical Center in Dallas, TX.  He completed his residency training in Obstetrics and Gynecology in the United States Air Force at Wilford Hall Medical Center and Brooke Army Medical Center, San Antonio, TX in 1998.  Dr. Retzloff studied at the Brigham and Women’s Hospital, Harvard Medical School, in Boston, MA, where he completed a fellowship in Reproductive Endocrinology in 2003.  He subsequently directed the IVF program at Wilford Hall IVF center for over 8 years and led its transition to Brooke Army Medical Center in 2011.  He retired in Sept 2014 from the US Air Force, after almost 21 years of distinguished service to our country.

Dr. Retzloff is a Fellow of the American College of Obstetrics and Gynecology, and is board certified in both Reproductive Endocrinology and Obstetrics and Gynecology.  He has served on the Executive Council for SART (Society for Assisted Reproductive Technologies) and has authored and presented numerous studies related to IVF and ICSI at national professional society meetings.  His special interests include infertility, advanced operative laparoscopy and hysteroscopy, to include daVinci robotic assisted surgery, and in vitro fertilization.

Look for his publications in leading journals such as Fertility and Sterility, The American Journal of Obstetrics and Gynecology and Obstetrics and Gynecology.  We are so happy to have him join our team!

Thomas B. Pool, Ph.D., HCLD

Dr. Thomas B. Pool

Dr. Thomas B. Pool, a native of Texas, is our dedicated embryologist and director of the center’s assisted reproductive technology laboratory. Dr. Pool earned a Bachelor of Science degree in Agriculture in 1970 and a Master of Arts degree in Biology in 1973 from Sam Houston State University in Huntsville, Texas. He went on to attend the University of Virginia as a National Institutes of Health predoctoral trainee in developmental biology, and was awarded the Doctor of Philosophy degree in 1976. In 1978, Dr. Pool completed a two-year postdoctoral fellowship in cell biology at the University of Texas Health Science Center at San Antonio. The same year, he joined the faculty of the University of Texas Medical School, and was promoted to Associate Professor in 1984. In 1986, Dr. Pool became the Embryologist and Laboratory Director for the Fertility Program at Methodist Hospital in San Antonio, and was appointed as the Program Director in 1989.

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