Meet Our Providers


Meet Dr. Kelly Thorstad



Dr. Thorstad was raised here in Austin, Texas. She graduated from the University of Texas at Austin with a Bachelor of Arts in Psychology with Honors. She went on to complete a Masters of Arts in Neuropsychology at the University of Vicotria in British Columbia, Canada.

She received her medical degree from Baylor College of Medicine in Houston, Texas. She completed her pediatric residency at the Children's Hospital of Austin where she served as Chief resident her final year.

Her husband, Dr. Trevor Turner, practices Internal Medicine and Pediatrics in Round Rock. They have two children, Cole and Avery. Her parents live in Austin as well. Her mom is a nurse at Bailey Square Surgery Center, and her father is "the other Dr. Thorstad" in town, practicing Psychiatry.

Dr. Thorstad is certified by the American Board of Pediatrics and is a Fellow of the American Academy of Pediatrics.

Meet Dr. Courtney Dudley



Dr. Dudley is originally from Austin. She attended Wake Forest University in North Carolina and graduated in 1999, earning a Bachelor of Science Degree with honors in Biology. She received her medical degree from the University of Texas Medical School in San Antonio and she completed her pediatric residency at the Children's Hospital in Columbus, Ohio. She joined Lone Star Pediatrics in September of 2006.

Her husband, Guy Dudley, is the co-owner of Case Handyman and Remodeling in Westlake. They are both members of Austin Christian Fellowship.

Dr. Dudley is a board certified pediatrician and a member of the American Academy of Pediatrics.

Meet Dr. Michael Holmes

Dr. Holmes is originally from New Orleans. He attended Louisiana Tech University for his undergraduate degree and graduated with honors in Animal Biology. He then obtained his Masters of Science degree in physiology from LSUHSC in New Orleans. He received his medical degree from LSU Medical School in New Orleans, and then completed his Pediatric Residency here in Austin at Dell Children’s Medical Center of Central Texas. 

During his residency he was awarded the Outstanding Resident Teaching Award for dedication to Medical Student Education. After his residency he was chosen to be Chief Resident at Dell Children’s Hospital, where he was responsible for the pediatric residents. He joined Lonestar Pediatrics in July, 2010. 

His wife, Valerie, is a NICU nurse at St. David’s Round Rock hospital. They have two children, Matthew and Allison.

Dr. Holmes is certified by the American Board of Pediatrics.

Meet Gwen Collmann, R.N., M.S.N., C.P.N.P.



Gwen Collmann is a dual graduate from the University of Texas. She received a Bachelor of Arts in Psychology in 1993 and complteted her Masters of Science in Nursing in 1999. She is certified as a Pediatric Nurse Practitioner by the Certification Board of the National Association of Pediatric Nurse Practitioners and Nurse Associates. She is a Fellow Member of the National Association of Pediatric Nurse Associates and Practitioners. Gwen is also an affiliate member of the National Association of Pediatric Onoclogy Nurses. 

Through the University of Texas, Gwen has been trained in the Touchpoints model of development created by renowned T. Berry Brazelton, M.D. Touchpoints is an interdisciplinary, relational, and developmental model of providing health care. Anticipatory guidance is tailored to the child's temperament and developmental level and a supportive relationship is nurtured between the practitioner and the parent.

Gwen and her husband have three children and are members of Triumphant Love Lutheran Church.


What is a Pediatric Nurse Practitioner?
PNP's are registered nurses who have completed a program of nurse practitioner preparation as part of the Masters in Nursing Degree. In addition, many PNP's  decide to seek national certification which evaluates the knowledge and competency to practice as a pediatric nurse practitioner.

What can PNP's do?
A PNP has aquired advanced knowledge and clinical skills in child health care and is able to work as a team member in the ambulatory and acute care setting. A PNP provides a broad range of primary health care services for children from birth to adulthood. The focus of the PNP is wellness, prevention and health promotion. PNP's perform physical examinations, developmental evaluations, sports evaluations and can diagnose and treat common illnesses as well as coordinate care of common chronic illness in children and help families meet thier health needs.
Gwen has also been trained in Dr. T. Berry Brazelton's Touchpoint Technique and would be happy to discuss this training with you and your child at any visit. She looks forward to meeting you at the office!