Doug Gates, M.D.
Dr. Gates received his medical training and OB-Gyn residency at Loma University School of Medicine and Medical Center in southern California.  He is a Fellow of the American College of Obstetricians and Gynecologists and is board certified by the American Board of Obstetrics and Gynecology.  Dr. Gates is passionate about making every birth experience joyful and memorable.  If you are the father, don’t be surprised if he puts gloves on you and puts you to work helping deliver!  He has been helping families grow in Southern Illinois since 1995.

Andrea Humphrey, M.D. 
Dr. Humphrey completed her medical school training and a residency in Family Medicine at Southern Illinois University in Springfield . She practiced general family medicine with an emphasis in women’s health, including obstetrics, and pediatrics first in Wisconsin and then with SIU Family Medicine Residency in Carbondale . She is board certified by the American Board of Family Medicine. She provides low risk obstetrical and gynecological care to her patients. In the community, she has served as the Medical Director for Pregnancy Matters since 2008.

Frank Walker, M.D.
Dr. Walker received his medical training at Finch University of Health Science/Chicago Medical School and did his residency at Cook County Hospital.  He is a Fellow of the American College of Obstetricians and Gynecologists and is board certified by the American Board of Obstetrics and Gynecology.  Dr. Walker enjoys making the process of his patients’ pregnancy a memorable experience for the entire family.  His clinical interests also include performing a wide range of gynecological surgeries with a special interest in laparoscopic procedures. He has practiced in Southern Illinois since 2002.

Mariah Charles, APN 
Mariah received her training at the University of Southern Indiana in Evansville , Indiana. She received a Masters Degree in Nursing and Family Nurse Practitioner. She is board certified by the American Nurses Credentialing Center and a member of the Illinois Society of Advanced Practice Nurses. Mariah’s focus and special interest is in women’s healthcare.

Kellie Lustenberger, APN 
Kellie received her Masters Degree in Nursing and Family Nurse Practitioner training at the University of Southern Indiana in Evansville, Indiana.  She is board certified by the American Academy of Nurse Practitioners and is a member of the Illinois Society of Advanced Practice Nurses.  Kellie’s focus is women’s healthcare with a special interest in adolescent healthcare. 

Kathy Osman, APN 
Kathy received her training at the University of Southern Indiana in Evansville Indiana.  She received her Masters Degree in Nursing and Family Nurse Practitioner.  She is board certified by the American Nurses Credentialing Center and a member of the Illinois Society of Advanced Practice Nurses.  Kathy’s focus and special interest is in woman’s healthcare.  She is an advocate for active listening and a holistic approach to medicine.

Terri Twenhafel, APN 
Terri received her Nurse Practitioners training at the University of Wisconsin, Planned Parenthood in Milwaukee, Wisconsin.  She is board certified by NCC as a Woman’s Healthcare Practitioner.  She is also registered as a Diagnostic Medical Sonographer in OB/Gyn.  She is a member of the Illinois Society of Advanced Practice Nurses, North American Menopause Society, American College of Nurse Practitioners and Association of Woman’s Health, Obstetric and Neonatal Nurses. Terri’s focus is in caring for women throughout their life-span.  She enjoys working with patients to help them work towards their best health.

Ann Darling Robinson, Practice Manager 
Ann has been working in the medical field for the past 32 years. She received her degree from Southern Illinois University in 1981. She was employed by the Carbondale Clinic for 17 years and then transitioned with New Horizons OB/GYN in 2001 as their Practice Manager. She is a Certified Coder (CCS-P), Certified Administrator in Physician Practice Management (CAPPM) and a Registered Health Information Technician (RHIT).