APN Behavioral Healthcare
Your Subtitle text

About Us

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.



Mr. Layton received a Bachelor of Science degree and Physician Assistant certificate from the Allied Health Science School at the University of Texas Southwestern Medical Center. He is NCCPA (National Commission on Certification of Physician Assistants) certified and licensed by the state of Texas to practice as a Physician Assistant.  Prior to attending and graduating from PA school, he earned a Ph.D. from the University of Chicago. He has a broad basis of medical experience that includes surgical sub-specialties. Before joining APN Behavioral Healthcare, he worked in psychiatry practices in Plano, Dallas, and Allen. He has extensive experience in child, adolescent and adult psychiatry.  Mr. Layton is married and has one son, and he and his wife enjoy hiking in the desert southwest.

Ms. Kilcrease graduated with her Master of Science degree in Nursing from the University of Texas at Arlington. She is board certified through the AANP (American Academy of Nurse Practitioners) and licensed through the Texas Board of Nursing as a Family Nurse Practitioner. Ms. Kilcrease works with all age ranges, from adults to children. She has previously worked as an emergency room nurse, and prior to nursing, Ms. Kilcrease worked for 16 years in law enforcement.

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 telecounseling, which can be done from the comfort of your own home or in an office at the clinic. Ms. Whitman enjoys living in the Texas countryside with her husband and one dog.

Website Builder