Skip to content At Rejuven8 Medical, we offer medical weight loss programs and hormone replacement therapy, all backed by evidence-based, state-of-the-art care. We take pride in individualizing and customizing treatment for each patient, listening to your needs and helping you find the option that’s genuinely right for you, not a one-size-fits-all plan.
At Rejuven8, we work as a team to help you look and feel great.
Rosangela is a Board-Certified Nurse Practitioner with over 18 years of experience in the medical field. She earned her BSN from the University of Texas at Austin, then spent nine years in medical-surgical bedside nursing at Houston Methodist Hospital before completing her Nurse Practitioner training at the University of Texas Medical Branch in Galveston in 2015. She is a member of the Obesity Medicine Association, Texas Nurse Practitioners, and the American Association of Nurse Practitioners, and is certified in BioTE, Botox, fillers, and other aesthetic procedures.
She co-founded Rejuven8 Medical in 2017 and has spent the years since treating patients with obesity, attending conferences year after year to stay current on evidence-based treatment. Rosangela lives in Richmond, Texas, with her husband and two kids, and loves to travel.
Rosangela is a Board-Certified Nurse Practitioner with over 18 years of experience in the medical field. She earned her BSN from the University of Texas at Austin, then spent nine years in medical-surgical bedside nursing at Houston Methodist Hospital before completing her Nurse Practitioner training at the University of Texas Medical Branch in Galveston in 2015. She is a member of the Obesity Medicine Association, Texas Nurse Practitioners, and the American Association of Nurse Practitioners, and is certified in BioTE, Botox, fillers, and other aesthetic procedures.
She co-founded Rejuven8 Medical in 2017 and has spent the years since treating patients with obesity, attending conferences year after year to stay current on evidence-based treatment. Rosangela lives in Richmond, Texas, with her husband and two kids, and loves to travel.
Israel Ramos is the co-founder of Rejuven8 Medical and Invigor8 Rx, and the owner of Remote Pharmacy Staffing. He has spent over 30 years in the health field, starting as a Pharmacy Technician in 1989 before graduating in the top 10% of his pharmacy school in 1995 with a Bachelor of Science. He began his career at the San Antonio Medical Center working across various hospital pharmacies.
Driven by a desire to build a better life for his family, Israel launched his entrepreneurial path with the company, which he has owned and run for the past 20 years.
Nancy was born in Dallas, Texas, and moved to Houston to pursue her dream of becoming a nurse. She earned her BSN from Texas Woman’s University, then completed her MSN as a Family Nurse Practitioner from the University of Texas Medical Branch in Galveston. She is a member of the Obesity Medicine Association and Texas Nurse Practitioners, board-certified through the American Association of Nurse Practitioners, and certified in Bioidentical Hormone Replacement Therapy as a BioTE provider and weight loss specialist.
With over 11 years of nursing experience across medical-surgical, intermediate care, and oncology, Nancy helps patients understand the underlying factors that influence metabolic health. Outside of work, she’s a wife and mother who enjoys cooking, exercising, and cheering on her favorite Dallas sports teams.
Melissa has worked in the medical field since 2018, with most of her experience focused on adult patient care. She joined Rejuven8 Medical in 2022 as a Nationally Registered Certified Medical Assistant and has since grown into her role as Office Manager, supporting patients through medical weight loss and long-term wellness services, including hormone replacement therapy.
Originally from the Rio Grande Valley, Melissa moved to Houston in 2022 and now calls it home, though the RGV still holds a special place in her heart. Outside of work, she’s a proud single mother of seven children and spends her time off with her kids and extended family.
Kaylamae is a Clinic Manager at Rejuven8 Medical with a background in patient care, health and wellness, and healthcare administration. Before entering the medical field, she worked in personal training and sports nutrition.
She joined the Rejuven8 team in 2024 as a Nationally Registered Certified Medical Assistant and Certified Phlebotomist, and has since taken on a management role overseeing daily clinic operations, patient experience, and staff coordination. She is currently furthering her education, with a strong interest in healthcare operations and leadership. Outside of work, Kaylamae enjoys reading, writing, and creative projects with her husband and family.
Andreina is an Administrative Assistant at Rejuven8 Medical with a genuine interest in health, wellness, and patient care. She has been a Certified Medical Assistant since 2024 and is currently pursuing her nursing education.
With a deep interest in nutrition, fitness, and overall wellness, Andreina enjoys learning how lifestyle and medical care work together to help people feel their best. Her warmth and welcoming personality make her a comforting presence at Rejuven8, where she values building real relationships with patients. Outside of work, she enjoys working out, coffee, and traveling with the people she cares about.
Mary is a Certified Medical Assistant and Certified Phlebotomist who joined the Rejuven8 Medical team in March 2026. She’s focused on creating a welcoming, comfortable environment for every patient throughout their care.
Originally from Massachusetts, Mary loves meeting new people and building genuine relationships with the patients she cares for, taking pride in being part of their progress through a compassionate, friendly approach. Outside of Rejuven8, she enjoys spending quality time with her family.
Minerva has been part of Rejuven8 Medical since the clinic first opened in 2017, and she’s proud to have grown alongside the practice from day one. Working alongside skilled Nurse Practitioners and dedicated healthcare professionals has helped her grow both personally and professionally.
With a medical assistant background and a strong interest in beauty, Minerva enjoys helping women feel confident and empowered, and finds fulfillment in the connections she builds with patients. Outside of work, she’s a devoted Houston Astros fan who loves traveling and creating memories with her loved ones.
Jeanne Williams is a board-certified family nurse practitioner with over 13 years of experience. She is also a weight loss specialist, Biote-certified practitioner, and certified neuromodulator and filler injector. Jeanne received her Bachelor of Science in Nursing from the University of Texas at El Paso. She continued to graduate school at the University of Texas at Arlington, where she received her Master’s degree specializing in family practice.
She has years of experience working in medical-surgical units, post-surgical care, wound care, and family practice. “I started my path into aesthetics as a patient. I love the science behind every treatment and want to help others feel their best with evidence-based practice.”
She enjoys staying updated on the latest and greatest practices through training.
Jeanne, her husband, and their four energetic daughters recently moved to the Sienna area from El Paso, TX. When she is not watching her daughters’ volleyball tournaments, tennis matches, gymnastics competitions, and swim meets, she enjoys reading, mountain biking, running, and traveling. She aims to run a marathon and attend more training to get you feeling and looking your best!
Jeanne Williams is a board-certified family nurse practitioner with over 13 years of experience. She is also a weight loss specialist, Biote-certified practitioner, and certified neuromodulator and filler injector. Jeanne received her Bachelor of Science in Nursing from the University of Texas at El Paso. She continued to graduate school at the University of Texas at Arlington, where she received her Master’s degree specializing in family practice.
She has years of experience working in medical-surgical units, post-surgical care, wound care, and family practice. “I started my path into aesthetics as a patient. I love the science behind every treatment and want to help others feel their best with evidence-based practice.”
She enjoys staying updated on the latest and greatest practices through training.
Jeanne, her husband, and their four energetic daughters recently moved to the Sienna area from El Paso, TX. When she is not watching her daughters’ volleyball tournaments, tennis matches, gymnastics competitions, and swim meets, she enjoys reading, mountain biking, running, and traveling. She aims to run a marathon and attend more training to get you feeling and looking your best!
Minerva Vargas is a detail-oriented and organized professional CMA with over 12+ years of experience providing administrative support in a medical office environment. Throughout her career, she has consistently demonstrated her ability in office operations, ensuring smooth workflow. Minerva takes pride in her attention to detail and commitment to delivering high-quality work. She is also passionate about promoting high-quality health and wellness for the ones in need. She is excited to bring her skills and expertise to any challenge and contribute to the organization’s success.
When she’s not working, Minerva enjoys exercising, spending quality time with her family, and loves watching the Astros.
You Are Invited to Visit Us
