OUR TEAM - innovativeuc


A native of Robstown, Texas, John has lived in San Antonio for over 15 years now and considers the San Antonio area to be home. He has been married for 24 years and has two children who are also very supportive and involved in his business. He has been working as a clinician in various ERs in the Corpus Christi and San Antonio areas for the last 5 years, but has also worked in urgent care and family health settings. His passion, however, is in the ER and Urgent Care settings and the business aspect that comes with each. Before becoming a nurse practitioner, John

owned and operated 7 outpatient physical therapy clinics located throughout South Texas for over 10 years. As a non practicing owner, the challenge and reward of not providing direct patient care was missing, so in 2009 he sold the business and enrolled in school with the goal of becoming a nurse practitioner and opening an urgent care and family practice. 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.


Dr. Jeffrey D. Johnson is a dedicated and concerned 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.


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 medicine 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!


Mr. Carlos Guerrero is a certified Physician Assistant that is originally from Corpus Christi, and having moved to San Antonio, Texas to attend St. Anthony Catholic High School. Carlos completed his undergraduate degree at TAMU-Kingsville and worked at programmer/software developer in San Antonio. In his first professional position upon his undergraduate degree conferment, Carlos was a programmer/analyst with a worldwide printer of Fiduciary products. After a few years, Mr. Guerrero completed his Masters of Physician Assistant Studies degree at the Texas Tech Health Sciences Center.

Carlos has practiced as a clinician for seven years in Texas. Carlos’ experience in various clinics across the San Antonio and West Texas areas includes experience in Urgent Care, Family Medicine, Urology, Orthopedics, and Occupational Medicine. Carlos has practiced as a Physician Assistant in various disciplines with his current interest being in Urgent Care and Family Medicine. Carlos is bilingual, so he can accept patient appointments for Spanish speakers. Carlos is active in professional societies including Bexar County PA Society, Texas Academy of Physician Assistants, American Academy of Physician Assistants.

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