Our Team - Innovative Urgent Care & Family Health Clinic


A native of Robstown, Texas, John lived in San Antonio for over 13 years but now calls Boerne his home. He has been married for 25 years and has two children who are also very supportive and involved in his practice. He has worked as a clinician in various ERs in the Corpus Christi and San Antonio areas for the last six years and has also worked in urgent care and family health settings.


Before becoming a dual-certified Family Nurse Practitioner and Emergency Nurse Practitioner, John owned and operated seven outpatient physical therapy clinics throughout South Texas for over ten years. As a nonpracticing owner, the challenge and reward of not providing direct patient care were missing, so in 2009 he sold the business. He enrolled in school to become a nurse practitioner and open an urgent care and family practice clinic. When not striving to keep his patients happy and healthy, he enjoys reading, golfing, snow skiing, and traveling with his family. John works in collaboration with Jeffrey Johnson, DO, a family medicine practitioner.

  • The University of Texas
  • Texas Tech University
  • Texas Nurse Practitioners
  • American Association of Nurse Practitioners
  • San Antonio Nurses In Advanced


Dr. Jeffrey D. Johnson is a dedicated primary care physician with over 25 years of experience practicing medicine in Texas. Dr. Johnson obtained his medical degree from the University of North Texas. He also completed his residency in family medicine in the Corpus Christi area. For his excellence in leadership, research, and achievement, he received the Chancellor’s Award from the University of North Texas. Dr. Johnson is sensitive to the uniqueness of each patient’s situation and adapts his consultations and treatment options appropriately to accommodate individual needs and concerns. He serves as our Medical Director and Supervising Physician.



Lacy was born and raised in a small town in Northeast Texas but comes to us from Dallas where she lived for the past 10 years. She obtained her Bachelor of Science in Nursing from the University of Texas at Tyler in 2008. She then went on to complete her Master of Science in Nursing with a focus on family practice from Georgetown University in 2015. She also completed a dual certification study in the specialty of emergency nurse practitioner at the University of Texas Health Science Center in Houston in December 2019.

With over 10 years in the healthcare field, Lacy offers a vast array of experience and knowledge to her patients. Her first three years in advanced practice were spent in a specialized functional medicine practice with a focus on chronic disease prevention and management using lifestyle medicine practices such has bio-identical hormone replacement and nutritional supplementation. She has since been working and continuing her education in the field of urgent and emergent care. Lacy has been married for 11 years and is a bonafide “dog mom” to her three fur babies. She and her husband are so excited to have been recently transferred to beautiful Bandera. They are thrilled for the opportunity to serve this community side-by-side in their respective professions. When not working, you will likely find the McMillon’s out exploring everything the Hill Country has to offer!

Guillermo Reyes, MD – Interventional Cardiology

Dr Guillermo A. Reyes has been in private practice since he arrived in San Antonio in 1997, soon after graduating from Baylor College of Medicine. He did all his studies at Baylor including MD, Residency, and Fellowship. He speaks Spanish and felt that his Spanish background would be best used in San Antonio. He calls San Antonio home and feels that taking care of San Antonians has been a most
rewarding experience.

Though he works at the local hospitals in the medical center, working independent of large hospital corporations has allowed flexibility to take better care of patients. Profit to the large corporations is never a factor in caring for patients. His philosophy in care of patients is to take care of them as best possible so that they get to trust him and are happy customers. Most of his patients are referred from family members or trusted physicians and health professionals. We believe in seeing patients as soon as possible and believe that each individual deserves respect and best care a physician can give.


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