About Men's T Clinic® | Testosterone Replacement located in Dallas, Frisco, The Colony, Houston, Cypress, Pearland, Pasadena, Spring, Grapevine and Forth Worth, TX

Meet Our Team

Serving thousands of Texas men for over a decade, with over 45 years of combined dedicated experience in hormone optimization and men’s health among our lead providers, and over 50 years of combined experience as Clinic Directors - our obsession and commitment to provide the most individualized, comprehensive and results-driven care for men is stronger than ever.

Edna Kimanga, DNP, MSN, APRN, FNP-C

Clinic Director | The Colony

Edna is a Board Certified Family Nurse Practitioner credentialed through the American Academy of Nurse Practitioners and licensed by the State of Texas to provide family-centered healthcare to patients of all ages. Her scope of practice encompasses health promotion, disease prevention, diagnosis and management of common and complex healthcare problems. She began her career after high school working as a certified nurse assistant. Since that she has accumulated nearly 20 years of nursing experience and education in various areas of patient care. She originally received Bachelor of Science Degree in University of Texas at Arlington, in 2003. While working at Baylor Medical Center at Frisco, she acquired her Master of Science in Nursing from Walden University.

Edna has a unique combination of strong nursing skills and strives to provide the best healthcare possible. She understands each patient is unique and believes in building a long-lasting trusting relationship. Her objective is to acquire a comprehensive evaluation of every patient by taking time to listen and understand their particular needs. When patients take an active role they tend to adhere to a plan of care and will achieve the positive outcomes they desire. Edna's desire is to enhance a positive healing experience and confidence to those in need.

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Steven Shelton, APRN, AGACNP-BC

Clinic Director | N. Frisco, TX

Steven Shelton is a Nurse Practitioner who has been in the medical profession for 28 years. He received his education in the Texas Panhandle and North Texas. He has worked in the emergency, intensive care, cardiac catheterization, interventional radiology, bariatric, and hormone management settings.

Steven received his Master's Degree specializing as an Adult Geriatric Acute Care Nurse Practitioner from Texas Tech University Health Science Center. He is board certified by the American Nurses Credentialing Center and has practicing privileges to care for patients nationally. These experiences have led him to specialize in hormone replacement, where he has been directing his patient care efforts the last several years.

Steven enjoys the outdoors when he isn't studying medicine. He is an avid mountain biker, and even donates some of his free time to maintenance of local trails, with the Dallas Off Road Bicycle Association. Steven's passion for mountain biking led him to build his own mountain bike from scratch, which you will find him riding on the weekends on local trails.

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Gary Watkins, PA-C

Clinic Director | Grapevine, TX

PA Gary Watkins graduated from the U.S. Navy Physician Assistant program earning a Bachelor of Science degree from George Washington University in Washington, D.C. in 1993 and was Commissioned as a United States Naval Officer. He later earned a Master's degree from the University of Nebraska Medical Center, specializing in Family Practice Medicine in 1999. Gary served in the U.S. Navy from 1981 ‐ 2001 where he worked as a Hospital Corpsman, a Laboratory Technician and later as a Physician Assistant. During his time in the Navy, Gary served in two overseas assignments, the U.S. Naval Hospital Subic Bay Philippines in 1982 and at the U.S. Naval Hospital Guam in 1994. Gary also served at the Office of the Attending Physician to Congress - at the U.S. Capitol in Washington D.C. 1991-1993, serving the medical needs of members of Congress to include - U.S. House of Representatives, U.S. Senators and U.S. Supreme Court Justices. During his tour of duty at the U.S. Capitol, Gary also served as medical staff during special sessions of Congress, State of the Union addresses and Presidential inauguration ceremonies.

Gary later retired from the U.S. Navy in 2001 at the Naval Air Station, Joint Reserve Base in Fort Worth after serving a total of 20 years of active duty service. During his 20 years of service, he earned two Navy Commendation Medals and two Navy Achievement Medals. After retirement from the Navy, Gary worked in Urgent Care / Family Practice Medicine for approximately 13 years before he began working in Men's Health and Wellness in 2014. Gary is happily married to his wife Emily now over 36 years and together they have three boys, Andrew, Kyle, and Chad. Gary enjoys running and recently finished two Cowtown Marathons and loves to promote a healthy lifestyle for all of his aging male patients.

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Nicholas Daniels

Clinic Director | Addison, TX

Nicholas joined the Men's T Clinic family in 2022 with over a decade in the medical field, beginning his career as a ground and flight paramedic. He also gained experience as a provider able to think on his feet and handle a dynamic environment during his tenure as an ICU nurse. Nicholas received his Masters Degree with a specialty in Family Practice from Henderson College in Central Arkansas. His experience lends to Nicholas leading his clinic, his team, and yieding patient success in a collaborative, fast-paced, comprehensive environment. Patient care and a dynamic approach to men's total wellness optimization is at the heart of Nicholas's care and clinic environment. When Nicholas is out of clinic, he enjoys camping and mountainbiking in the warmer months, and snowboarding and hunting in the fall and winter.

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Devon Price, MSN, APRN, FNP-C

Clinic Director | Alliance, TX

Devon Price is a board-certified Nurse Practitioner dedicated to advancing men's health and wellness. His passion for medicine began at the age of 15 as a volunteer in the hospital and has led him through a distinguished, hands-on career. Before joining Men's T Clinic in 2025, Devon built a strong clinical foundation with five years of service as an EMT and an additional five years as a Critical Care RN in demanding ER and ICU environments.

After earning his Master of Science in Nursing, Devon focused his practice on the areas he is most passionate about: Hormone replacement therapy (TRT/HRT), medically supervised weight loss, and preventative wellness. With four years of specialized experience in this field, he is committed to creating individualized treatment plans that align with each patient's unique goals.

Devon’s professional philosophy is centered on enhancing not just the quantity but, most importantly, the quality of life. He strives to empower his patients to stay happy and healthy for the long run, allowing them to be fully present for their families and pursuits.

Outside of the clinic, Devon is an avid weightlifter and enjoys video games, camping, and spending quality time with his wife and daughter.

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Dr. Salvatore Campo

Corporate Medical Director

Dr. Salvatore Campo is Men's T Clinic's Corporate Medical Director - leading treatment plans, protocols and vision for Men's T Clinic, collaboratively, with the collective Men's T Clinic Medical Team. Dr. Campo has more than two decades of innovatively, safely and effectively treating Low T, and more - for men of all ages and stages of Hormone Optimization. Dr. Campo, a proud U.S. Veteran, earned his medical degree on a Navy scholarship from the University of Health Sciences in Kansas City, Missouri. He completed his residency in Anesthesia/Pain management from Yale University Medical School in 1995. Dr. Campo is in private practice as an Interventional Pain Specialist, and became the Founding Medical Director of the Men's T Clinic, at it inception, in 2013. Dr. Campo is a retired Navy captain and a veteran of both Desert Shield/Desert Storm and Iraqi Freedom.

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Kelly Cook, MPAS, PA-C

Corporate Director of Operations

Kelly Cook is a seasoned Physician Assistant with over 22 years of experience in the medical field, including 15 years specializing in hormone replacement therapy (HRT). His HRT journey began at Coppell Family Medical Center and continued at the Low T Center, where he joined in 2010 during the early days of the testosterone therapy movement.At the Low T Center, Kelly played a pivotal role in the company’s rapid expansion—from a single clinic to more than 40 clinics nationwide within a few short years. His responsibilities included serving as a Center Director, developing treatment protocols, overseeing clinic operations, recruiting, and contributing to clinical research. Starting as a medical provider, Kelly advanced to become the National Quality Assurance Manager before his departure.

During his time there, Kelly co-authored three articles published in prominent medical journals. One notable piece, titled “Risks of Myocardial Infarction and Strokes in Men Treated with Testosterone: The Low T Experience,” was selected as late-breaking news by the American Association of Clinical Endocrinologists and featured as a poster presentation at the 2015 AACE Conference.In 2016, Kelly joined the Men’s T Clinic team, where he has continued his mission of delivering exceptional, patient-centered care. With a wealth of experience, he now helps train and mentor providers across the Men’s T Clinic system, ensuring the highest standards in care.

Kelly earned his undergraduate degree in Biology and Chemistry from Hardin-Simmons University, where he also played football and was named Academic All-Conference in two seasons. He later received his Master of Physician Assistant Studies from the University of North Texas Health Science Center.Outside of work, Kelly enjoys spending time with his wife—his college sweetheart—and their three wonderful children. He’s an avid outdoorsman who loves fishing, skiing, working out, and cheering on his kids in their sports activities.

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Krystyna Tran, FNP

Clinic Director | Houston Heights

Krystyna holds a national certification with the American Academy of Nurse Practitioners as a Board-Certified Family Nurse Practitioner. She began her career in health care working as a registered nurse in dialysis. Her passion to help others, allowed her to advance in her career and continue her education. Krystyna completed her Bachelor of Science in Nursing with honors at University of Texas and then earned her Master of Science in Nursing as a Family Nurse Practitioner graduated with highest honors at Chamberlain University. She is presently pursing a Doctorate in Nursing Practice at Purdue University. She is dedicated to providing the best patient care possible through listening to her patients and empowering them to take better care of themselves. In her spare time, she loves to travel, craft, and explore great eats.

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James Nguyen, PA-C

Clinic Director | Cypress, TX

James Nguyen is double certified as an Advanced Practice Practitioner, and as a Chiropractic Physician. He has advanced training in Neurosergery, Orthopedics and Interventional Pain Management - from Baylor College of Medicine and Houston Methodist. James also has extensive experience in Men's Health and Wellness, and is is an experienced provider in PRP Injections for Hair Vitality, Sexual Wellness and Joint Pain.

James joined the Men's T Clinic family in 2023 as our Cypress Location Clinic Director, excited to serve the local community by providing the best in Men's Total Wellness Care. James is "driven by the opporunity to enhance his patient's overall quality of life" through his experience, passion and through the comprehensive care and commitment offered to patients at Men's T Clinic.

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Nathan Muehlstein, PA-C

Clinic Director | Pearland, TX

Nathan Muehlstein was born and raised in Shiner, Texas. He graduated summa cum laude from Texas State University in San Marcos with a Bachelor of Health and Wellness Promotion degree and obtained his Master of Physician Assistant Studies degree from the UTMB School of Health Professionals. Prior to becoming a Physician Assistant, he was a medic in the US Army Reserves and a paramedic. His previous experience includes primary care/internal medicine for 3 years before starting his focus on hormone replacement for the last 2 years. Nathan prides himself on making his patients feel comfortable by educating them about their conditions as well as providing the highest level of medical care. Nathan is married to his beautiful wife Danica, and they enjoy spending time with their two pugs, Amos and Otis.

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Daniel Dao, FNP

Clinic Director | Pasadena, TX

Daniel Dao began his nursing career in 2014 with a Bachelor's of Science degree from Tarleton State University. Throughout his time as a bedside nurse, has accumulated had a wide variety of inpatient experience while working at the metropolitan hospitals in Austin, TX. While working in a fast-paced emergency department, he earned his Master's of Science in Nursing, specializing as a family nurse practitioner. Daniel has diverse background in primary care, as he was groomed by multiple physicians during his clinical training. He is particularly interested in men's health and is dedicated to combining hormone replacement therapy with lifestyle management in order to optimize his patients' quality of life. In his spare time, Daniel participates in powerlifting, works on his motorcycles, and hikes outdoors with his dogs, Winston and Armin.

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Shaun Mullen, PA-C

Clinic Director | Spring, TX

Shaun Mullen is a graduate from Stephen F. Austin State University where he earned a Bachelor of Science degree in Biology in 1987. In the same year, he attended the University of Texas Medical Branch at Galveston. He graduated from UTMB with a Bachelor of Science in Physician Assistant studies in 1989. He has been practicing medicine since 1989. Over that time, he spent 17 years in Orthopaedic Surgery. The last 7 years have been dedicated to hormone replacement, predominately in men. He truly believes that hormone replacement and wellness is the key to longevity. He always strives for the best outcomes for his patients and looks for ways to improve future care. When he is not working, he enjoys most outdoor activities and is an avid sports fan. He also enjoys spending time with his wife Jan, sons Ryan and Kyle, and two dogs Clifford and Clementine.

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Erik Snook, PA, MPAS

Director of Operations - Houston

Erik Snook, PA, MPAS is a Texas Licenced Physician Assistant with over a decade of experience helping men achieve optimal health through hormone replacement therapy (HRT), weight management, peptide therapy, and overall wellness. As an Army veteran and graduate of the Interservice Physician Assistant Program (IPAP). He earned his Master’s degree in Physician Assistant Studies from the University of Nebraska Medical Center.Erik’s career spans roles as a medical provider, clinic director, and corporate executive. His expertise includes testosterone replacement therapy (TRT), functional medicine, and weight loss strategies, paired with a deep understanding of patient care and clinic operations.

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