Shelly Keough

Barbara Miller

About Us

Amber Ebner

Lindsay Whitman

Scott Layton

APN Behavioral Healthcare

Barbara Miller, RN, MSN, C-PMHNP
APN Behavioral Healthcare LLC was founded in 2002 by Barbara Miller. The office is located in a Victorian home in Waxahachie, TX, and it is registered with the National Register of Historic Places. Ms. Miller earned a Master's of Science in Nursing, specializing in Child, Adolescent, and Adult Psychiatry from The University Of Texas at Arlington. Ms. Miller is board certified through the American Nursing Credentialing Center. She is also an assistant professor in the University of Texas Graduate Nursing Program. She has a wealth of knowledge and experience in medication management, cognitive-behavioral therapy, and raising four children of her own.

Barbara Miller is certified with the American Nursing Credentialing Center as an Advanced Practice Nurse in Child, Adolescent, and Adult Psychiatry with prescriptive authority.



Lindsay Whitman, MA, LPC
Ms. Whitman graduated with her Master of Arts degree in Clinical Psychology from Sam Houston State University. She obtained her Bachelor of Science degree in Psychology from Texas A&M University. She has a wide array of mental health knowledge and experience that includes working with the elderly, adults, couples, families, adolescents, and children. She uses an eclectic approach with an emphasis on cognitive-behavioral therapy, solution-focused therapy, and motivational interviewing. Ms. Whitman utilizes tele-counseling, which can be done from the comfort of your own home or in an office setting at the clinic. Ms. Whitman enjoys living in the Texas countryside with her husband, two daughters, and dog.

Amber Ebner, PA

Amber Ebner is a board certified Physician Assistant working under physician supervision to evaluate and treat a broad range of psychiatric disorders. Mrs. Ebner obtained her Master's degree in Physician Assistant Studies in 2011 from Texas Tech University Health Science Center in Midland, Texas. Amber was born and raised in Odessa, Texas and attended the University of Texas of the Permian Basin and majored in biology.
    Mrs. Ebner is certified by the National Commission on Certification for Physician Assistants and licensed through the Texas State Board of Medical Examiners. Her clinical experience includes working with children, adolescents and adults with attention deficit disorders, mood disorders, anxiety disorders, and chemical dependency. She believes in a conservative yet effective approach to treatment and values her patients' input regarding their treatment. Amber joined APN Behavioral Healthcare in April 2019. In her free time she enjoys traveling, volunteering, watching sports, and spending time with family.

Shelly Keough, APRN, FNP-C

Shelly Keough is a board certified nurse practitioner. Mrs. Keough obtained her Bachelor’s of Science in Nursing at the University of Texas at Austin and her Masters of Science in Nursing from the University of Texas at Arlington. She is board certified through the American Association of Nurse Practitioners as well as through the Pediatric Nursing Certification Board for pediatric nursing. Her clinical experience includes 6 years in a large hospital setting serving those in the ICU and Emergency Department for a wide array of issues including chemical dependency, self- harm, and suicidal ideation/ attempts. She also has clinical experience in outpatient working with children, adolescents, and adults with attention deficit disorders, mood disorders, anxiety disorders, and depression. She  believes in a holistic approach to treatment that blends traditional medicine, functional medicine, and nonpharmacologic interventions. In her spare time she enjoys cheering on her favorite sports teams (Go Cowboys!) with her husband, daughter, and fur babies. 

Scott Layton, PA
Mr. Layton earned his Bachelor of Science degree and his Physician Assistant certificate after graduating from the Allied Health Sciences Physician Assistant Program at the University of Texas at Southwestern Medical Center  in Dallas, TX.  He then passed the National Commission on Certification of Physician Assistants exam and secured his Texas state license to practice as a physician assistant.  During his career, he has worked in a number of surgical specialties – general, bariatric , orthopedic, and neurosurgical.  He also has extensive experience in psychiatry, having diagnosed and treated children, adolescents, and adults for a variety of psychiatric conditions.  Prior to working at APN Behavioral Healthcare from 2013 onwards, he worked in psychiatric practices in Plano, Dallas, and McKinney.  In 2018, he answered the “call of the wild” by moving to western Colorado, in part to be closer to his son, but also to enjoy outdoor activities.  He enjoys working in psychiatry, and he continues to see patients via telemedicine.