Emergency & Critical Care

  • Dr. Michael Villanueva
    ECC Chief of Staff

    Dr. Michael Villanueva remembers when his family dog was hit by a car; he was six years old. The veterinarian made such an impression on him that he decided to become a veterinarian. He worked at a local primary care veterinary clinic in high school and for six years as an emergency and intensive care unit technician at the veterinary hospital at Texas A&M University, an experience that set him on the path to becoming an emergency clinician. He is particularly interested in toxicity and trauma cases. 
     Bachelor of Science, Animal Science, Texas A&M University, College Station
    Internship, Small Animal Medicine & Surgery, North Houston Veterinary Specialists, Spring TX
    Doctor of Veterinary Medicine, Texas A&M University, College Station

    Off Duty 
    Dr. Villanueva spends his free time with his wife and two children Thomas (4 ½) and Teagan (5 months) doing anything that keeps his son busy. The family has four pets: a dachshund named Skeeter, a husky mix named Olaf and two cats, Nemo and Belle.

  • Dr.
    Amanda Shotts

    Dr. Amanda Shotts is a native Texan, she was born in Houston and raised in the Fort Worth area. She attended Texas A&M University and earned her Bachelor's in Biomedical Sciences in 2009 and Veterinary Degree in 2013. Upon graduation, she completed a rotating Internship in Spring, TX and developed a passion for emergency Medicine. She has practiced in emergency medicine since completing her internship throughout the Houston area. Dr. Shotts met her husband in 2008 during a Microbiology class and they married while attending veterinary school in 2012. They are now both emergency doctors and stay busy with their young daughter, 3 cats, and 1 dog. Dr. Shotts’ hobbies include: reading, running, cycling, and raising a very active toddler.

  • Dr. Kent Oakley

    Born and raised in Kansas, Dr. Oakley graduated veterinary school from Kansas State University.  After practicing in the snow and cold Dr. Oakley and his wife Rebekah to California where we lived for 10 years.  We moved to Texas with our cat and four dogs to be closer to family but still be away from the snow. Dr. Oakley join the SLVS Emergency and Critical Care section in late 2013.

  • Dr. Diane McGee

    Dr. Diane McGee earned both her bachelor’s degree in biomedical science and doctor of veterinary medicine at Texas A&M University. She has practiced Veterinary Emergency Medicine since that time. Since 1994, she has worked alongside veterinary specialists in various emergency medicine and specialty hospitals in New Mexico and Texas. Her past experiences include practicing medicine at El Abrigado Animal hospital in New Mexico, El Paso Animal Emergency and the Emergency Animal Hospital of Northwest Austin. She worked for five years at the Animal Emergency Hospital of North Texas, where she was an emergency doctor and hospitalist for a 24-hour emergency and critical care facility. There she was responsible for coordinating patient care among multiple specialists, including internists, cardiologists, surgeons, ophthalmologists, and dermatologists. Most recently she provided triage and patient care in the Critical Care Department at another local specialty and emergency hospital. Dr. McGee recently returned to SLVS in 2018 to expand the emergency department to provide daytime emergency care. Her specific areas of interest include toxicology, infectious disease, endocrine disease and gastroenterology.

  • Dr. Jessica Anderson

    Dr. Anderson is a native Houstonian. She attended Texas A&M University graduating with her Bachelors in Animal Science in 2007. She worked in laboratory animal medicine and neuroscience research for several years while completing her Masters of Biological Sciences in 2011 at the University of Houston Clear Lake. She attended veterinary school at Western University of Health Sciences in California, graduating in 2017. Ready to be back in Texas with her husband, she completed a small animal internship in Houston and welcomed her first child shortly after. Dr. Anderson loves spending time with her family (including her dog, cats and fish), reading, drawing, spending time outdoors and enjoying diverse Houston culture. 

  • Ashley Wetz
    LVT, BAS
    Emergency and Critical Care Manager

    Ashley is an army brat and was born in Hawaii.  She moved throughout the US before settling in Houston.  She did an internship program in high school and fell in love with veterinary medicine.  Ashley graduated with her AAS in Veterinary Technology in 2010 from Vet Tech Institute and her BAS from Tarleton State University in 2016.  She has worked in both exotics and small animal practice, and she joined the SLVS team in December of 2010. Ashley has a special interest in Emergency and Critical Care and has been working as an emergency technician since 2008.  Her family includes her husband, their dog 'Mo', horse 'Willie', and 2 kitties 'Ben and Jerry'.

  • Joshua Garcia
    Veterinary Technician

    Josh grew up in Sugar Land, Texas, graduating from Stephen F. Austin High School in 2001. Josh immediately enlisted in the Marines and served a 5 year active term. After serving in the military Josh worked as an electrician before going to the Vet Tech Institute of Houston. Josh joined the SLVS team in May of 2013. He has one mixed breed shepherd and an Irish Wolfhound. Josh enjoys watching movies and spending time with his 2 beautiful daughters and wife.

  • Shiela Riggins
    Veterinary Technician

    Shiela started her career in the emergency setting in 2005, starting as a kennel assistant while training to be a technician.  She joined our team in 2013 and brought her vast knowledge in critical care and deep compassion for our patients. Shiela loves to spend quality time with her family – both 2- and 4-legged ones!  She is married, with 2 daughters, a dog, and 2 cats.

  • Tyler Hassell
    Veterinary Assistant

    Tyler grew up in Katy and now lives in College Station. He originally started as a shadow student before coming onboard as a team member in the Emergency & Critical Care section in the summer of 2014. While obtaining a degree in Animal Science from Texas A&M University, Tyler would return to SLVS on the weekends and school holidays. Tyler is currently enrolled in Texas A&M College of Veterinary Medicine Class of 2021 and is on his way to becoming a veterinarian.  During his time away from work and school, he enjoys spending time with his grandparents, getting lost on long drives, and trying new restaurants.  He has many pets at home, but his Chihuahua, Levi, is extra special.


  • Sheena Brock
    Veterinary Technician

    Born & raised in Alvin Tx. Sheena raised & showed Quarter horses until college. While in college she decided to go into Veterinary Medicine in 2007 & has worked in the field since. Sheena started at SLVS in November of 2012 in the Emergency and Critical Care Section. In her free time, she enjoys paddle boarding, kayaking, camping, and attending rock concerts. She has 3 cats named Izzy, Piglet, & Pistol.


  • Stephanie Goodspeed
    Veterinary Technician

    Stephanie is a native Houstonian who has been working in a veterinary setting since 2001 starting as a kennel assistant and working her way up to become a veterinary technician.  Stephanie has worked in both small and mixed animal practices and loves working with large animals. She joined the SLVS Emergency and Critical Care team in June 2016 as a Veterinary Technician. She graduated from Kansas State University in 2010 with a Bachelor's degree in Animal Science.  She is currently working on obtaining her LVT as well as her Associated degree in Biology. When not busy studying or working she enjoys hanging out with her family which includes her dogs Tadpole and Hazel, and her cats Spice and Polly.

  • Marie Amaya
    Veterinary Technician

    Marie grew up and currently lives in Missouri City, Texas. She graduated from Blinn College Veterinary Technology Program in May 2016 and started working at SLVS in June 2016 with our Emergency and Critical Care Section. She has 2 Catahoula Leopard Dogs named Booger Wayne and Rougarou. Three American Quarter Horses named Miss Reba, Gunner and Clifford. She enjoys trail riding and rodeo events such as barrel racing and roping. She has worked in small animal general practice for 8 years. She loves to learn and is working towards her VTS in Emergency in Critical Care.

  • Brian Herbert
    Veterinary Technician

    Brian, a Sugar Land native, moved from Chicago in 1995.  He graduated from Stephen F. Austin High School, and attended the University of Houston after graduation.  Brian is a recent graduate from the Vet Tech Institute of Houston, where he found his passion for emergency medicine after volunteering and shadowing shifts at SLVS and various animal hospitals in Houston.  Brian started his career with SLVS in early 2018 in the Emergency and Critical Care section.  When Brian isn't studying for his state boards in August, he can be found at the dog park with either his Labrador, Enzo, his Golden Retriever, Roscoe, or at the barn with his Quarter Horse, Sam.

  • Krystal Green
    Veterinary Technician

    Krystal was born in Key West, Florida and was a Navy brat for 15 years before settling down in Houston, TX. She attended A&M University and received her Bachelors and Masters degrees in Biomedical Sciences, and she plans on applying to veterinary school in the summer of 2018.  Krystal knew from a young age that she wanted to work with animals, even helping her grandparents with the animals on their farm.  Krystal has worked in the veterinary field since she was 15 years old, starting out as a kennel tech, and eventually working her way to SLVS Emergency and Critical Care section in early 2016.  Outside of work Krystal loves to bake, go for a run, country dancing, hang out with friends and family, attend Texas A&M football games, and volunteer at the Houston Rodeo.  She currently has 2 dogs, both labs named Sadie and Sienna.

  • Ashley Medellin
    Veterinary Technician

    Ashley was born and raised in Richmond, Texas. After receiving her Associates in Applied Science in Veterinary Technology from Vet Tech Institute of Houston in 2017, she accepted an externship here at SLVS. While externing, she developed a keen interest in the Emergency section and now is part of the wonderful Emergency and Critical Care team. Outside of work, she enjoys traveling, fishing, and spending time with her family. She has a 3 year old orange tabby named, Pumpkin and a 12 year old border collie mix named, Oreo.

  • Raven Moore
    Veterinary Technician

    Raven grew up in Kansas City, Missouri but has made Houston her home. She graduated from University of Houston in 2017 with a Bachelor of Arts. Halfway through her undergrad career, she began pursuing her passion for animals and medicine. She started as a kennel technician and quickly worked her way up to a veterinary technician. Her goal is to attend the College of Veterinary Medicine at Texas A&M. She began working for SLVS to increase her knowledge of the field and hopes to learn as much as she can before beginning vet school. She adores her three dogs, Opie, Titan, and Kirby but her cat Leia is the love of her life.

  • Bethany Jensen
    BS, LVT
    Veterinary Technician

    Bethany grew up in Richmond, TX. She graduated from Tarleton State University in 2013 with a Bachelor’s degree in Animal Production. She started her veterinary career shortly after graduating from TSU as a kennel technician. She then graduated from The Vet Tech Institute of Houston in 2016. She has worked in general practice, emergency and ICU. Bethany has a heeler mix named Tucker, a heeler mix named Woodrow, a corgi named Maple and a cat named Patty. Bethany enjoys riding horses and teaching therapeutic horsemanship classes in her free time.  BS, LVT

  • Jared Bartlett
    Veterinary Technician

    Jared was born in North Carolina but raised in Houston, TX. He graduated from James E. Taylor High School in 2005. After graduating from the Vet Tech Institute of Houston he spent 16 months in Hawaii working overnights at a veterinary hospital. After moving back he started part-time with our Emergency Care team, and after a few months decided to become a full-time Emergency technician. When not at work he can be found playing with his Boxer Persephone or camping with his wife Tiffany.

  • SaVanna Laney
    Veterinary Technician

    SaVanna grew up in Sugar Land and graduated from George Ranch High School in 2015. She started working in the veterinary field in 2013 as a kennel tech at Rose-Rich and has worked in our Emergency and Critical Care section in 2016.  When she is not at work she enjoys spending time with all of her fur babies, but most of all loves cuddling with her beautiful baby girl. 

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Sugar Land Veterinary Specialists


8:00 am-6:00 pm


8:00 am-6:00 pm


8:00 am-6:00 pm


8:00 am-6:00 pm


8:00 am-6:00 pm