Meet the Team

The friendly, professional team at Texas Endovascular is specially trained to support our physicians in treating vascular, vein, arterial, fibroid and other conditions.  They will take time to educate you about your specific condition, thoroughly answer your questions, and discuss all your treatment options with you.  You will be an active participant in your healthcare every step of the way.

Our convenient, comfortable offices in Bellaire, Katy, Sugar Land and Clear Lake allow us to provide personalized, office-based care to patients across the greater Houston area, throughout Texas, and beyond.Check out our frequently asked questions to learn more about what to expect during your visit.

Sarah Applegate, Physician Assistant

Sarah Applegate is a native Houstonian and physician assistant with over 7 years of experience in treating vascular disease. She graduated from Texas A&M University in 2008 with a bachelor’s degree in Nutritional Sciences and then completed a master’s degree in Physician Assistant Studies at Baylor College of Medicine in Houston. After graduating from Baylor, Sarah worked in internal medicine for two years before specializing in vascular and interventional radiology. Her areas of expertise include venous disease, peripheral arterial disease, uterine fibroid embolization, and cosmetic sclerotherapy.

Sarah lives in Katy with her husband, two kids, and two golden retrievers. Outside of work, Sarah loves spending time with her family, watching the Astros or Aggie sports, reading, and exercising.

Catherine Raesz

Catherine Raesz, Physician Assistant

Catherine Raesz is a Physician Assistant with over 10 years of experience in Interventional and Endovascular Radiology. She graduated from Texas A&M University with a bachelor’s degree in Psychology and then completed a master’s degree in Physician Assistant Studies at the University of Texas Medical Branch. Her areas of practice include venous disease, peripheral arterial disease, and uterine fibroid embolization. Catherine is dedicated to providing compassionate patient care that helps patients reach their goals and feel their best.

Outside of work, Catherine enjoys spending time with her two dogs, Mozzie and Pupper, along with hiking, biking, gardening, volunteering and traveling to the Caribbean.

Tiffany Meske

Tiffany Meske, Physician Liaison

Tiffany graduated from the University of Colorado with a degree in Integrative Physiology. As a Physician Liaison, she works diligently to keep us connected with referring providers and patients.

A Colorado native, Tiffany lives in Houston with her husband Ryan, their chocolate lab, Frisco, and their baby girl, Beckett. In her free time she enjoys traveling, snowboarding, working out, reading, being outdoors and trying out new restaurants.

Pam Moore

Pam Moore, Physician Liaison

Pam entered the healthcare space as a physician liaison in 2010 and joined the TEA family in 2019. She enjoys building relationships with referring physicians, as well as educating healthcare professionals about the mission of TEA.  Her creative, energetic, patient-centered approach has been instrumental in establishing TEA as a clinical leader in vascular care.

Pam is originally from Louisiana but has grown to love and call Houston home. There is still a little bit of Cajun left in her since her favorite pastimes are music, food and dancing.  She has been married to her husband, John, since 1995 and has 2 wonderful kids. Her son is a drummer and her daughter a new Red Raider! Guns Up!  Pam’s other love is the family shitzu, Dexter. When she is not doting over Dexter she is caring for the family cat and African Grey parrot.

Julia Montgomery, Ultrasound Technologist

Julia Montgomery, Registered Vascular Sonographer

Julia has been a Registered Vascular Technologist since 2009. She loves working with patients to resolve their health issues, and being on the front line of treatment. She always has a positive attitude and always wears a smile!

Julia is a transplant from Massachusetts, she has called Houston home for the past 20+ years. In her free time, Julia enjoys spending time with her family and traveling.

Kenzie Houlette, sonographer in Houston TX

Kenzi Houlette, Registered Vascular Sonographer

Kenzi has experience in General, OB/GYN, and vascular sonography. A Texas A&M University graduate, she continued her ultrasound education at the University of Texas MD Anderson Cancer Center and is now a board certified RDMS and RVT. Originally from a small town near Amarillo, Kenzi has called Houston home for over 5 years. In her free time, she likes to eat sushi, enjoy time with her friends and family, and travel.


Heather Kliesing

Heather Kliesing, Registered Vascular Sonographer

Heather is a registered vascular technologist with over 15 years of experience in vascular ultrasound. She really enjoys interacting with and helping her patients. She helps to 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.


Jamie Kay, Medical Assistant

Jamie Minamyer, Clinical Support Specialist/Medical Assistant

Jamie has been an integral part of the clinical team for many years. Like the rest of our team, she is always willing to do whatever it takes to care for our patients. In addition to her skills as a medical assistant and scribe, she also supports the physicians during procedures, and ensures that the offices and procedural center are properly equipped, compliant, and safe. Jamie routinely acts as a liaison between the physicians and patients, ensuring that we remain on schedule and on target.

When Jamie isn’t working hard, she is filling the office with laughter. Outside of work, Jamie enjoys skiing, spending time with her dog Honey and golfing.

Lili Sanchez

Liliana Sanchez, Clinical Support Specialist/Medical Assistant

Liliana is a Medical Assistant who is a Houston native. She loves helping patients and making them feel comfortable during their visit. Liliana has two beautiful young boys named Javier and Julian who love to dance. In her free time she enjoys going to the movies with her hubby and spending time with friends and family.


Brenda Mejia

Brenda Mejia, Clinical Support Specialist/Medical Assistant

Brenda says her mission is to make all of our patients’ days little better before leaving the office. This mission is clearly reflected in the quality of her interactions with patients. Brenda is currently going to school to become a RN. If she is not at work or studying she is probably outside chasing “the prettiest girl she knows” her blue heeler Penelope, or keeping tabs on her favorite sports team the Houston Astros.


lillian serpas

Lilian Serpas – Clinical Support Specialist/Medical Assistant

Lilian joined us in July of 2020 with over 13 years of experience as a Medical Assistant. She says that developing strong relationships is the foundation of everything she does, both professionally and personally, and feels that she couldn’t have chosen a better team to join than TEA.

Liliana describes herself as “born and raised Houstonian with a zest of Salvadoran”. She has three beautiful girls. Outside of the office, she enjoys trying new foods and restaurants. She loves to travel and enjoys long road trips with her family.

maristela chevez

Maristela Chevez – Clinical Support Specialist/Medical Assistant

Maristela is a native Houstonian, currently pursuing a Bachelor’s degree in Psychology and Business Administration. She joined us in July of 2020 and has been a positive addition to our team due to her positive attitude and commitment to our patients.

In her spare time, Maristela says she loves attending concerts and enjoys bike riding, and traveling. She especially enjoys the beach.

jocelyn bonilla

Jocelyn Bonilla – Patient Experience Specialist

Jocelyn joined the TEA team in July of 2020 with over 5 years of medical office experience. A Long Island, NY native, Jocelyn recently relocated to the Houston area after serving in the US Navy.

Jocelyn is dedicated to helping our patients and making sure they receive the best care possible. She says that she enjoys what she does and feels that being a part of a company that helps and cares for their patients is very rewarding.

In her time away from the clinic, Jocelyn likes to spend time with her family, go bike riding, go hiking, and visit new places.

Jackie Hall, Front Office Coordinator

Jackie Hall, Patient Experience Specialist

As a long-term member of staff, Jackie is an outstanding ambassador for TEA, and is committed to making our patients feel welcome and comfortable from the moment they step into our office.

Aside from keeping the office running smoothly, Jackie enjoys spending time with her friends and family. She loves planning parties, going to the gym, FaceTiming her nephews who live in New Mexico, and spending time with her “fur baby”, Marley.

Sindy Parada, Front Office Coordinator

Sindy Parada, Patient Experience Specialist

Sindy has been on staff with TEA for many years. She is experienced, diligent, friendly, and committed to our mission of caring for patients. Many refer to Sindy as the “Hostess with the Mostest”. Her fun loving nature has earned her a reputation as the office clown (usually at Erik’s expense). When she’s not at the office, Sindy enjoys spending quality time with her family, walking her dogs, sporting events, and teaching Erik Spanish.

Ashley Lara, Front Office Coordinator


Ashley Lara, Patient Experience Specialist

Ashley is a Houston area native with over 10 years of experience in the medical field plus medical assistance training. She worked in OB/GYN and Neurology before joining Texas Endovascular. She loves coming to work every day because of the joy she feels from seeing positive results from patient treatments. She loves being a part of a passionate team. You will find Ashley’s smiling face greeting you as you walk into Dr. Hardee’s Katy office.  Ashley treats every patient with respect and is always ready to help. In her free time, Ashley likes to cook, travel, work out, experience different food cultures and enjoy a night out on the town. She lives in Katy with her husband and 4 fur babies.


Perla Sanchez

Perla Sanchez, Patient Experience Specialist

Perla joined the TEA team in 2019 and she’s loving it! Patients and guests enjoy interacting with Perla at the front desk, or on the phone because of her cheerful personality and caring demeanor.  She enjoys helping patients and making them feel welcome.

Prior to joining us at TEA, Perla worked as an insurance agent for over 8 years.

When she is not at work, Perla loves being around her six nephews. They are her pride and joy. In her free time she enjoys hanging out with friends and family.

Mayra Martinez

Mayra Martinez, Patient Experience Specialist

Mayra brought over 10 years of experience with her when she joined the TEA team in early 2020. Patients enjoy connecting with Mayra, and can always count on her to deliver a great experience. As a bilingual team member, Mayra enjoys welcoming patients in person, and providing outstanding service by phone. Her friendly personality and great attitude make her an integral part of the Clear Lake office team.

When Mayra is not at work, she enjoys traveling and spending time with her two wonderful kids.

Debora Perez

Debora Perez, Medical Billing and Coding Specialist

Debora is a Medical Billing and Coding Specialist with over 20 years of experience in the healthcare space. A Certified Professional Coder and a member of AAPC, she is working towards her CBP and CIRCC certification. Deborah can always be counted on to deliver an exceptional patient experience. She utilizes her talent to ensure that our billing is accurate, appropriate, and timely.

Deborah enjoys spending time with my husband and 3 kids, working out, traveling, cooking and crafting.

Erik Frazar, Practice Manager

Erik Frazar, Practice Manager

Erik Frazar, our beloved and esteemed practice manager, has over 10 years’ experience in health care, which is clearly reflected on his personal connection with our patients. In addition, he plays furniture mover and handyman to make sure our facility is always “patient ready”.

Outside of the office, Erik and his wife Carol enjoy just about every extracurricular outdoor hobby possible – and he has the gear to prove it! His favorites include: his weekly bowling league, fishing, snow skiing, and mountain biking.

Donna Looser

Donna Looser, Chief Operating Officer

Donna is a Lean Six Sigma black belt with over 25 years of progressive experience in business development, quality improvement,  financial modeling, and healthcare operations.  She has established a reputation for excellence and leadership by improving financial and operational performance for multiple organizations through her dedication to the patient experience. Throughout her career, she has developed both primary care and specialty facilities, with an emphasis on outpatient vascular care.

Donna lives in the Clear Lake area with her husband and two teen aged children. In her spare time, she enjoys cooking, spending time in nature, and traveling to visit family in St. Louis, New Orleans, and Daytona Beach.

sean mullen

Sean M. Mullen, Chief Executive Officer

Sean Mullen joined us as our Chief Executive Officer in 2020 bringing over 25 years of experience with him.  Originally from Boston, Sean’s childhood included living abroad in Guam, Germany, Australia, and Kenya.  After completing his post-secondary education at Columbia College, he worked on Wall Street before returning to Columbia for his MBA.

Sean’s distinguished career spans multiple disciplines, including Finance and Healthcare.  After a decade on Wall Street, he launched and developed a comprehensive EMR platform specializing in the outpatient vein and vascular space. He is recognized nationally as a thought leader in healthcare.  His direction will ensure that TEA will thrive as a physician-run, patient-focused practice, delivering high quality care well into the future.

Sean lives with his wife and two children in the Cleveland, OH area.


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Texas Endovascular is OPEN for business!

Our offices have stringent safety protocols in place to keep you safe and provide the care you need.  We are accepting appointments now. Do not delay necessary medical care and follow-up. Call our office today at 713-575-3686  to schedule your appointment with Dr. Fox, Dr. Hardee, or Dr. Valenson.

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