They perform the ultrasounds and imaging your physician reviews to decide whether a minimally invasive procedure will help you and to confirm when it will not.
They connect our clinics with primary care doctors, OB/GYNs, urologists and specialists across Texas, so referrals move quickly and your records arrive before your visit does.
Our practice managers and operations leaders handle scheduling, insurance verification and the front office, and they are the people to ask when something about your visit needs sorting out.
Director of Practice Operations
Emily is a native Houstonian and a seasoned healthcare administrative professional. As a friendly and warm healthcare professional, she is passionate about assisting both patients and colleagues for the best possible outcomes. Starting her journey in the front office, she has progressed through various roles, leveraging her experience to become a compassionate leader and mentor. Recognizing the importance of teamwork, she focuses on building relationships harnessing the strengths of her team members to deliver exceptional customer service.
Outside of work, Emily enjoys spending quality time with her family, exploring the outdoors, watching movies, and staying active through workouts.
Dallas Practice Manager
Born and raised in Southern California, David moved to Texas in 2022 with his partner of over 15 years and their 3 boxers. He has been a Licensed Vocational Nurse since 2007 and transitioned into clinical operations in 2017. He believes in creating memorable patient experiences by providing a warm, supportive and comprehensive approach to patient care. David also believes that building relationships and actively listening to patients & staff, are key elements in creating a safe and effective environment. He is excited to be a part of the Texas Endovascular team and is looking forward to the growth and success of the practice.
In his spare time, David likes to keep fit. He enjoys going to the gym and participating in obstacle course races. David also has a vast collection of movies, and especially enjoys horror flicks.
Lead Registered Vascular Technologist
Heather is a registered vascular technologist with over 15 years of experience in vascular ultrasound.
She really enjoys interacting with and helping her patients and helps brighten the Clear Lake office with her smiling face and happy demeanor.
When Heather is not working, she loves spending time with her husband and two sons. She also enjoys the outdoors, playing with her dogs, gardening, and traveling.
Registered Vascular Technologist
Jessica Sousa is a Registered Vascular Technologist with nearly 10 years of experience in vascular ultrasound. She began her career in the acute hospital setting, spending several years at Houston Methodist Hospital before shifting her focus fully to her passion: vascular care.
Jessica first joined Texas Endovascular in 2018, working at the Bellaire clinic. After a few years living in California, she returned to Texas and is proud to be part of the Dallas team.
Known for her kind and calming presence, Jessica enjoys building meaningful connections with her patients and helping them feel at ease during their visits.
Outside of work, Jessica enjoys fishing with her husband and son and cheering on her son at baseball games.
Physician Liaison · Sugar Land
As an experienced and successful physician liaison across different specialties over the last 10 years, Diana brings a unique perspective to the healthcare industry. She attended the University of Houston, where she majored in Anthropology, with a focus on Archaeology, and a minor in Ancient History & Classical Studies. Go Coogs!
Throughout her career, Diana has worked tirelessly to ensure that patients receive the highest quality care and that physicians receive the support they need to provide that care. With her bilingual skills, Diana can bridge cultural and linguistic gaps, ensuring that all patients receive the care they need. She is passionate about improving healthcare outcomes for patients and ensuring that everyone has equal access to the care they need. Diana believes that patient education is key for the prevention of illness, promotion of wellness, and the restoration of health.
Known for her positive and sunny disposition, Diana prides herself in her ability to connect with people, and her friendly personality and sense of humor means she can build and nurture strong relationships. Diana enjoys traveling, snorkeling, kayaking, reading, watching K-dramas, outdoor activities, gardening, finding new boba places, spending time with her family, and following all the Houston sports teams, especially the Houston Cougars. Some of her favorite hobbies include learning new languages, volunteering, and giving back as much as possible to under-resourced communities.
Physician Liaison · Clear Lake
Carmenza Amell graduated from the University of Texas at Austin with a Bachelor's degree in Business Administration. As a marketing major, she excelled in her studies and graduated magna cum laude. She has experience in the healthcare industry including pharmaceutical sales, clinical research patient recruitment, and has worked as a Physician Liaison. Carmenza is originally from Panama, Central America and has lived in the U.S.for many years. She is married, has a beautiful daughter, and enjoys caring for her pampered dog named Ojo. Carmenza's hobbies include reading, writing music, singing, exercising, and dancing. She speaks Spanish and French fluently and is looking forward to her new assignment as Physician Liaison for Texas Endovascular in southeast Houston.
Physician Liaison · Katy
Andrea grew up in Pearland, Texas and comes from a journalist background. She began her education at the University of Houston in 1996 (Go Coogs!), then transferred to Sam Houston State University where she graduated with a Bachelor of Fine Arts in Radio/Television and a minor in Marketing/Advertising. She made the decision to move into the medical realm after college and has a true passion for educating and helping patients and doctors learn all about the minimally-invasive treatments Texas Endovascular doctors perform. Andrea has worked in the healthcare industry for 16 years, six of those years working in the vascular world. She has a great working knowledge of all things vascular and arterial. Andrea has covered many territories in the Houston, Dallas and Nashville, TN markets. She has a fur baby named Chuy and loves to spoil him. Andrea enjoys reading, playing tennis and practicing yoga and Pilates. Andrea covers the Katy/Northwest Houston area.
Physician Liaison · Plano
Chanelle is a dedicated physician liaison with a bachelor's degree in communication studies, experience educating the healthcare community on venous insufficiency, and over 18 years in provider relations. Passionate about health and wellness, she specializes in fostering strong connections between referring providers to ensure seamless patient care and collaboration.
With a strong foundation in communication and a proven track record in provider engagement, Chanelle excels in strategic outreach, business development, and increasing referrals.
Outside of work, Chanelle enjoys exploring different Pilates studios in the DFW area, teaching Barre classes, discovering new coffee shops, cooking, and spending time with loved ones. Most importantly, she is a proud mother to her 11-year-old daughter and a devoted fur baby parent.
Physician Liaison · The Woodlands
Born and raised in Houston, Melissa has always had a heart for community, connection, and making a meaningful impact in healthcare. She earned her bachelor’s degree in Biology with a minor in Mathematics from the University of Houston and later went on to complete her MBA with a concentration in Healthcare Administration from Lamar University, combining her passion for science with a strong foundation in healthcare leadership.
Over the years, Melissa has gained hands-on experience across multiple specialties including dermatology, pediatrics, and vascular care. She has held roles in clinical settings, leadership, and business development, giving her a unique perspective on both the patient experience and the business of healthcare. Her diverse background allows her to communicate effectively across teams and tailor solutions that work for providers and patients alike.
Melissa is especially passionate about bridging gaps in care through strong communication, relationship building, and community education. She thrives on creating partnerships that support both practice growth and patient outcomes, always striving to bring people and resources together in meaningful ways.
Outside of work, Melissa enjoys traveling with her fiancé, spending time with friends, and hanging out with her dog, Butter.
Physician Liaison · Fort Worth
Sarah Finnegan is delighted to serve as the physician liaison for our Fort Worth community. She brings a thoughtful, people-first approach to our team, backed by her master's degree in Psychology and her bachelor's degree in Innovative Studies from East Texas A&M University. Sarah chose a career in healthcare because she genuinely cares about helping people maximize their potential and reach their health goals.
Having previously performed as a dancer at the collegiate, NBA-G League, and IFL levels, Sarah knows the value of hard work and community outreach—qualities she brings to her doctors and clinics every day.
Outside of work, you can usually find Sarah exploring new walking paths, decorating her home, traveling, or checking out local restaurants with her friends and family.
Physician Liaison · Dallas
Jessica Bolin was born and raised in San Antonio, TX. After graduating from UTSA, she took an opportunity to market for a private practice and it quickly blossomed into something she loved to do.
Jessica’s eight years of marketing experience in the healthcare industry, allowed her to live out her passion of connecting people in the community together and getting them the care they needed when they needed it most.
When she’s not out in the field, she’s spending quality time with her husband and 2 children exploring Dallas and making new and fun memories in this big city!
Usually three people: a front-office team member who checks you in and confirms your benefits, a registered vascular technologist who performs your ultrasound, and a provider — a physician, physician assistant or nurse practitioner — who reviews the results with you. If you go on to have a procedure, it is performed by a board-certified interventional radiologist.
A registered vascular technologist (RVT) is a credentialed sonographer who specializes in imaging veins and arteries. Using ultrasound, they map blood flow in your legs, pelvis or arms so your physician can see exactly where the problem is before deciding on treatment. The exam is painless and there is no radiation involved.
Our physician liaisons are the link between Texas Endovascular and the doctors in your community; primary care physicians, OB/GYNs, urologists and specialists. They make sure your referring doctor knows what minimally invasive options exist, and that your records and imaging reach us before your visit. If you are a physician who would like to refer a patient, your liaison is the person to call.
Yes. Spanish-speaking team members are available at our clinics, including bilingual physician liaisons, and Dr. AJ Valenson sees Spanish-speaking patients directly. Ask for a Spanish-speaking team member when you call or note it on the appointment form. Se Habla Español.
Call the clinic where you are seen and our practice operations team will help. They verify insurance benefits before anything is scheduled, explain what your plan requires and handle scheduling changes. Texas Endovascular accepts most major insurance plans, including Medicare.
Our board-certified interventional radiologists and advanced practice providers each have their own profile. Meet our providers to see credentials, the clinics they attend and the conditions they treat.
Scheduling
Please contact our dedicated specialists to schedule a consultation today.
