About OasisRx
We built OasisRX because we were tired of a healthcare system that accepts decline as "normal." We provide bespoke, science-backed medical optimization to help you reclaim your edge, perform at your peak, and age with vitality.
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The End of "Normal Aging"
For too long, high-performing professionals and active adults have been forced to choose between two flawed healthcare models.
On one side: traditional medicine, where doctors glance at a basic blood panel, dismiss your chronic fatigue and brain fog as "normal aging," and tell you to just get more sleep.
On the other side: fast-food retail wellness franchises that offer cookie-cutter IVs and generic treatments with zero personalized medical oversight.
You shouldn't have to accept diminished vitality as a permanent reality. OasisRX was founded to bridge the gap between high-level medical oversight and accessible physical recovery. Operating both a premier physical storefront in Houston/Cypress and a frictionless nationwide telehealth platform, we provide concierge-level hormone optimization, peptide therapy, and metabolic recovery. We abandon the glitchy patient portals and automated phone trees of the past, replacing them with direct, rapid SMS/text communication with your provider.
At OasisRX, you are not a metric. You are a partner in your own physiological optimization.
Meet the OasisRx Leadership Team
We are a team of medical professionals, performance specialists, and operational leaders dedicated to your long-term vitality.
Founder | Team TX Muscle, Inc. & OasisRx Peptide & Wellness
Scott Lightfoot
Founder of OasisRx Peptide & Wellness and Team TX Muscle, Inc., bringing decades of experience in health optimization, performance enhancement, bodybuilding, and nutrition coaching.
As an experienced bodybuilding coach, Scott has worked with athletes ranging from first-time competitors to national-level bodybuilders, while also helping everyday men and women lose weight, increase energy, optimize hormone health, and improve metabolic wellness. His approach focuses on treating the individual—not just lab values—by combining comprehensive diagnostics with personalized nutrition, exercise programming, supplementation, peptide therapy, and lifestyle optimization.
Scott has completed Advanced Peptide Therapy Certification, providing specialized education in the clinical application of peptides for areas including recovery, performance, longevity, metabolic health, tissue repair, cognitive function, and healthy aging. He remains committed to ongoing education and staying current with emerging research to ensure patients receive the most effective and up-to-date treatment strategies.
At OasisRx, Scott works alongside licensed medical providers to develop individualized wellness programs that integrate comprehensive laboratory analysis, hormone optimization, peptide therapies, weight management, nutrition coaching, and recovery protocols. His goal is to help every client achieve measurable improvements in health, performance, and longevity while providing exceptional education and ongoing support throughout their wellness journey.
Whether working with elite athletes seeking peak performance or individuals striving to regain their health and vitality, Scott is dedicated to delivering personalized care that empowers clients to look, feel, and perform at their best.
Health Care Leader
Naressa MacKinnon
Naressa MacKinnon is an entrepreneur and healthcare leader with more than two decades of experience in the healthcare industry.
As a partner at OASIS RX, she brings a unique combination of healthcare operations, business leadership, patient advocacy, and a genuine interest in helping people better understand the options available to improve how they feel and function.
At OASIS RX, Naressa’s primary areas of focus are testosterone replacement therapy, peptide therapy, medical weight management, and health optimization. She has a particular interest in the evolving science surrounding hormones and peptides and enjoys helping clients understand how these therapies work, what options may be available, and what questions they should be asking as they work with the OASIS RX medical team.
A former collegiate athlete, Naressa also has a personal appreciation for the role that strength, recovery, body composition, energy, and long-term health play in quality of life. Her approach is straightforward: provide good information, set realistic expectations, and make an often-confusing area of healthcare easier to understand.
Outside of OASIS RX, Naressa serves as President of the Board of Harris County Emergency Services District No. 9, which oversees the Cy-Fair Fire Department. Her background also includes decades of service with Special Olympics Texas and nonprofit leadership supporting women veterans.
Whether in healthcare, business, or public service, Naressa has built her career around leadership, education, and helping people. At OASIS RX, that means helping create an experience where clients have access to innovative therapies, appropriate medical oversight, and a team committed to helping them reach their individual health and wellness goals.
Nurse Practitioner, Telehealth
Mariacruz Dennis
Mariacruz earned her Bachelor of Science in Nursing from Texas Woman’s University in 2005 and her Master of Science in Nursing–Family Nurse Practitioner degree from Houston Baptist University in 2020.
She began her professional nursing career as an RN case manager with Grace Hospice of Texas, where she developed a strong foundation in compassionate, patient-centered care. She subsequently expanded her clinical experience at Memorial Hermann Northeast, Harris Health, and through a local travel-nursing assignment with Max Healthcare. Throughout her nursing career, she has taken on charge-nurse responsibilities, coordinated patient care, collaborated with multidisciplinary healthcare teams, and mentored fellow nurses.
After becoming a Family Nurse Practitioner, Mariacruz provided primary, preventive, and gynecological care at Family-Medix in Houston. She later specialized in medical weight management, testosterone replacement therapy, hormone monitoring, and peptide-based wellness services at Level T Weight Loss, Testosterone Replacement and Peptides Clinic in New Caney. Her clinical experience includes comprehensive patient assessments, laboratory interpretation, individualized treatment planning, telehealth, and the management of patients receiving semaglutide, tirzepatide, and testosterone therapy.
Mariacruz holds active Texas credentials as a Family Nurse Practitioner and Registered Nurse. She is also a Certified Medical-Surgical Registered Nurse and maintains ACLS, BLS, and CPR certifications. Fluent in English and Spanish, she is committed to providing safe, evidence-based, culturally sensitive, and individualized care. Her extensive bedside experience and advanced-practice training allow her to combine clinical expertise with compassion, education, and a strong dedication to improving each patient’s health and quality of life.
Managing Partner
Bryan Schild
With more than 20 years of experience in real estate development, residential construction, and home renovation, Bryan Schild has built a career around entrepreneurship, leadership, and creating businesses from the ground up. Over the course of his career, Bryan has been involved in the acquisition, development, construction, and renovation of more than 1,500 homes.
While real estate has been a major part of his professional journey, Bryan has always had another passion: health, fitness, longevity, and looking and feeling his best.
His interest in peptides began nearly a decade ago, when he was first introduced to the emerging field of peptide research and its potential applications in health and wellness. What began as a personal interest developed into a long-term passion and ultimately inspired Bryan to pursue opportunities within the healthcare and wellness industry.
A lifelong gym-goer, Bryan understands firsthand the challenges that come with maintaining a healthy lifestyle, staying in shape, managing weight, and continuing to feel your best as you get older. His goal is to help make high-quality information and innovative wellness solutions more accessible to people who are working toward their own health and fitness goals.
OasisRx Team Member
Darren Webber
Bio Coming Soon
Body Work Specialist
Andrew Edwards
Drawing on this foundation, Andrew has earned the trust of an elite clientele — including high-level IFBB professionals and competitive powerlifters — while remaining equally committed to everyday athletes and general clients. A record-holding powerlifter and a coach in both powerlifting and bodybuilding, he brings a practitioner's understanding to every session, combining evidence-based biomechanics with precise, hands-on soft tissue work. His approach is methodical, individualized, and rooted in a genuine commitment to long-term results.
We Deliver Safe, Rapid Relief
Whether you're a Cypress local looking for a regular wellness routine or a first-timer curious about IV hydration, our team will help you choose a service based on your goals, comfort level, and preferences. Settle into a comfortable chair and recharge.