About Us

APN Behavioral Healthcare

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 at the clinic. Ms. Whitman enjoys living in the Texas countryside with her husband and one dog.

Nicholas Glaze, MSN, FNP

Mr. Glaze graduated with his Master of Science degree in Nursing from the University of Texas at Tyler. He obtained his Bachelor of Science degree in Nursing from the University of Texas at Tyler as well.  He is dedicated to clinical excellence through evidence based practice and prevailing against the challenges of a dynamic healthcare environment by exhibiting exemplary patient care and critical thinking skills as evidenced by academic and clinical record, enthusiastic and dependable completion of problems presented during clinical experiences, and embracing and utilizing the NONPF NP core competencies.