- Certification - American Board of Obstetrics and Gynecology, 1970
- Certification - American Board of Obstetrics and Gynecology, subspecialty of Maternal-Fetal Medicine, 1976
- Fellow, American College of Obstetricians and Gynecologists
- Leon Chesley Award of the International Society for the Study of Hypertension in Pregnancy, 1993
- Induction as Fellow ad Eundem of The Royal College of Obstetricians and Gynaecologists in England, 1997
- Outstanding Alumnus, The University of North Texas, 1998
- Career Achievement Award, The Society for Maternal-Fetal Medicine, 1999
- Elected to the Institute of Medicine of the National Academy of Science, 2001
- The Baden-Gibbs Award from the Texas Association of Obstetrics and Gynecology, 2002
- The 50th Anniversary Award of the Society for Gynecologic Investigation, 2003
- Fellow, American College of Surgeons, 2008
- The Norman F. Gant, M.D., Chair in Obstetrics and Gynecology established at the University of Texas Southwestern Medical School, 2009
- Life Time Achievement Award, the American College of Obstetricians and Gynecologists, 2016
Professional Associations and Affiliations
- Alpha Omega Alpha, 1979
- American Board of Obstetrics and Gynecology
- Executive Director, 1994-2009
- Director and Examiner, 1983-1992
- American Board of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine
- Director and Examiner, 1986-1992
- Division Director, 1989-1992
- American Board of Family Practice, Director, 1989-1994
- American Gynecologic and Obstetrical Society
- American Medical Society
- Accreditation Council for Graduate Medical Education
- Residency Review Committee for Obstetrics and Gynecology
- Member, 1987-1990
- Vice Chairman, 1990-1993
- Ad hoc Member, 1993-2009
- American Society of Hypertension, Inc.
- Association of Professors of Gynecology and Obstetrics
- Endocrine Society
- Federation for American Immigration Reform (FAIR)
- International Society for the Study of Hypertension in Pregnancy
- Vice President, 1992-1994
- Secretary-Treasurer, 1988-1992
- Perinatal Research Society
- Sigma Xi, The Scientific Research Society
- Society for Gynecologic Investigation, President, 1991; Program Chairman, 1989
- Society of Perinatal Obstetricians
- Southwestern Gynecologic Assembly, President, 1993
- Southern Perinatal Association