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Meet Our Team

Dr. Willingham

Alexis Willingham, DVM

Veterinarian, Practice Owner

Dr. Willingham grew up on a dairy farm in the North East Texas town of Sulphur Springs, where she was exposed to veterinary medicine at an early age.  Both of her parents and her younger sister have been in the veterinary profession.  She also has a sister that is involved in canine genetics research.  Through vet school, she had the opportunity to do a summer rotation in Ghana, West Africa, setting up an animal welfare society and was able to complete her externship at a veterinary practice in Orbost, Australia.  After graduating from Texas A&M College of Veterinary Medicine, she worked several years in a mixed animal practice north of Denton taking care of both large and small animals followed by a small animal practice in Little Elm.  She and her husband, Joe, now live in Prosper with their three young boys.  Dr. Willingham's veterinary interests include internal medicine, soft-tissue surgery, and endocrinology.  She is also passionate about the importance of preventative medicine, feline medicine, and senior pet health.

Pets:   Nim - Female Maine Coon born in 2015

             Sherlock - Male Maine Coon born in 2015

             Rubie Roo - Female Border Collie born in 2016

             Razzle - Male Border Collie Mix born in 2018

Favorite Quotes:

"There are no ordinary cats."  ~Sidonie-Gabrielle Colette

"No one appreciates the very special genius of our conversation as a dog does."  ~Christopher Marley

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Taylor Sheffield, DVM


Dr. Sheffield is a local to the DFW area.  She was exposed to the field at an early age with her first job as a kennel technician, which sparked her interest in veterinary medicine.  Dr. Sheffield attended Oklahoma State University for her undergraduate degree in Animal Biotechnology and Microbiology.  There she learned she had a real passion for veterinary medicine and decided to pursue her doctoral degree at Texas A&M College of Veterinary Medicine.  After graduating in 2022 she moved back to the area to practice in canine and feline medicine.  Dr. Sheffield's veterinary interests are internal medicine, ultrasound, and senior pet health (she is a sucker for a senior).  In her spare time, you can find Dr. Sheffield is either enjoying her time outside, joining a fitness class, or spending time with her family.

Pets:   Potato - Male Feline born in 2015

              Jameson - Male, Deaf, Blue Heeler born in 2019

              Mila - Female Australian Shepard born in 2009

Favorite Quotes:

"Animal are such agreeable friends - they as no questions; they pass no criticisms."  ~ George Eliot

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Lauren Rooney, DVM


Dr. Rooney was born and raised in Wichita Falls, Texas. She went to Baylor University for undergrad and received a Bachelor of Science in Biology. During her time there, she realized her love for small animals. She received her Doctor of Veterinary Medicine degree from Oklahoma State in May of 2023. Her veterinary interests include ophthalmology, soft tissue surgery, geriatric care, behavioral medicine, and dentistry. She married her husband, Michael, in December of 2021. In her spare time, Dr. Rooney loves to spend time with her family, play board games, and watch movies.

Pets:   Murphy - Male Blue Merle Miniature Australian Shepherd born in 2016

              Angus - Female Black Labrador Retriever born in 2021

Favorite Quotes:

"Sometimes the smallest things take up the most room in your heart."  ~ A.A. Milne

"Whatever you do, do it well."  ~ Walt Disney

Alex the Clinic Cat


Quality Control

Alex joined the team in 2018 and is a very special part of the PTAH family.  Although he enjoys his visits to the lobby, Alex really excels in the moral support department and loves to oversee the day-to-day excitement in our treatment area.  Alex can often by found watching our staff work, taking cat naps in his condo, and getting lots of love and pets throughout the day.  However, Alex's favorite place to be is sprawled out on our lead technician Nicole's desk.  Alex and Nicole share a very special bond - so much so that he gets grumpy when she's not there (it may have something to do with her spoiling him with fresh cold water from her cup)!  Something you may not know about Alex is that he is a diabetic.  Our staff does a great job making sure he's mindful of his treats and that he gets his insulin each day.  While he's normally a pretty laid back guy, Alex tends to get frisky after a shave.  If your pet is spending time in our treatment area, rest assured that Alex is keeping an eye out and making sure everything goes smoothly!

Favorite Quotes:

"You know how it is with cats:  They don't really have owners, they have staff."  ~Author PC Cast

Stevie the Clinic Cat


Official Greeter

Stevie joined the PTAH team in 2019 and is the best hospital greeter.  Stevie loves to spend time up front with our receptionists greeting our clients and patients when the come to visit.  When she's not hard at work, she can be found napping in a sunny windowsill, perching on her cat tower or getting some extra TLC (Stevie is the best cuddler).  Every now and then, Stevie will catch a case of the zoomies - she loves to speed around the office and get a little silly (as Dr. Sheffield calls it - she goes feral).  While Stevie is certainly a charmer, it is important to watch your snacks around her...she's been known to try and swipe a treat when the opportunity arises!  If you havent't had a chance to meet Miss Stevie before, be sure to let our staff know - she's always happy to come say hello!

Favorite Quotes:

"My dear, I'm a cat.  Everything I see is mine."  !Rick Riordan



Office Manager

Amanda has been with the PTAH Team since the doors opened in June 2013 and has worked with Dr. Willingham since 2006.  Having worked in the animal industry since 1999, she has done it all from summer kennel assistant, bather, receptionist, technician, and since 2009 office manager.  Amanda really enjoys working with both clients and their pets and uses all of her past experience to make PTAH a great place for our patients, their owners, and the staff.  She received her Bachelor of Science in Animal Science from Texas Tech University in 2005 and now lives in The Colony with her husband and their two little boys.

Pets:  Riley - Male Boxer Mix born in 2009

            Dach - Male Long Haired Dachshund born in 2015

Favorite Quotes:

"Be the kind of person your dog thinks you are."  ~Unknown

"Dogs are not our whole life, but they make our lives whole."  ~Roger Caras



Head Veterinary Technician

Nicole has been with the PTAH Team since February 2014 and has worked with Dr. Willingham since 2008.  She started working in the animal industry in 2000.  Her favorite place to be is up in the mountains.  Her hobbies are riding her horses with her daughter and hiking with her dogs.  Nicole grew up in the Prosper/ Celina area and has enjoyed watching the community grow.  She lives in Celina with her husband and family.

Pets:  Danny - Mare Quarter Horse born in 2007

            Sammie - Female DSH born in 2013

            Gunner - Male Golden Retriever born in 2014

Favorite Quotes:

"Out greatest weakness lies in giving up.  The most certain way to succeed is always to try just one more time."  ~Thomas A. Edison



Veterinary Receptionist, Admin Assistant

Sherrie has been with the PTAH Team since June 2014 and has worked with Dr. Willingham since 2007 when she started working in the animal industry.  Sherrie grew up in Little Elm where she currently lives with her husband.  She has three grown daughters and two adorable grandchildren.  She enjoys reading, fishing, and watching movies during her off time.

Pets:  Harley Quinn - Female Bobtail born in 2015

            Tater Tot - Male Terrier Mix born in 2021

             Ramsay - Male Shih Tzu Mix born in 2022

Favorite Quotes:

"I'd rather regret the things I've done than regret the things I haven't done."  ~Lucille Ball



Veterinary Technician

Courtnee has been with the PTAH Team since 2016.  She grew up in Little Elm and remains a local.  When she isn't loving on all the fur babies at work, she enjoys spending time with family and friends.

Pets:   Bugboo - Female Shepherd Mix born in 2008

              Albert - Male Basset Hound born in 2022

              Leroy - Male Basset Hound born in 2023

Favorite Quote:

"Dogs do speak, but only to those who know how to listen."  ~Orhan Pamuk



Veterinary Technician

Melissa has been with the PTAH Team since 2019.  She grew up in Fredericksburg, Texas and moved to Anna in 2019.  She has been working in the veterinary industry since 2016.  Melissa enjoys spending her free time with her husband, 2 daughters, and 3 dogs on the lake or on their ranch in Oklahoma

Pets:   Daisy - Female Dachshund born in 2011

              Marshell Wallus - Male Dachshund born in 2017

              Trudy - Female German Wirehaired Pointer Mix born in 2022

Favorite Quote:

"Sometimes in life, you gotta yee the haw, before the haw yees you."  ~Unknown



Veterinary Technician

Maison has been with the PTAH team since 2021.  She was born and raised in St. Joseph, Missouri until 2013 when her and her family moved to Lavon, Texas.  She started working in the animal field in 2019 and has loved it ever since.  She's currently a student at Collin College.  Her biggest career goal is to become an Office Manager at a Veterinary Clinic further down the road.  She spends her free time with her son and hanging out with friends and family.

Pets:  Ruger - Male German Shepherd born in 2022

            Boots - Males Tuxedo DSH born in 2023 

Favorite Quote:

"Until one has loved an animal, a part of one's soul remains unawakened."  ~Anatole France



Kennel Technician, Technician Assistant

Megan joined the PTAH team in 2021.  Born and raised here in the Dallas area, Megan always had a special calling to give animals a genuine sense of compassion and care.  Graduating from Prosper High School, Megan was a part of the veterinarian programs offered at her school.  After graduating, she has continued to develop and learn new skills to give all pets care and attention.  Megan is blessed to go home to her golden doodle, Piper June who never leaves her side and always cheers her up.  She is so proud to be working at PTAH and continues develop her skills and give love to all the fur babies!  Count on her to give your pets all the hugs and calming pep talks!

Pets:  Piper June - Female Golden Doodle born in 2021

Favorite Quote:

"This too shall pass."  ~Abraham Lincoln

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Veterinary Technician (Remote)

Amanda has been with the PTAH team since 2021.  She grew up in California and moved to Texas for her husband's job.  After 2 years in Texas, fate took her back to California where she continues to work remotely for PTAH.  Amanda attended the PIMA Veterinary Assistant Program in San Diego.  She started working as a veterinary technician in 2014.  She has always had a passion for helping animals and loves working in the veterinary field.  In her spare time, she loves hiking, going to the beach, horseback riding, gardening and spending time with family and friends.

Pets:  Wilson - Gelding Thoroughbred born in 2007 

             Gizmo - Female Terrier Mix born in 2013

             Bruce - Male Dachshund Mix born in 2015

             Jackson - Male DSH born in 2015

             Chibs - Males DSH born in 2020           

Favorite Quote:

"The world would be a nicer place if everyone had the ability to love as unconditionally as a dog."  ~M. K. Clinton



Head Veterinary Receptionist

Alicia has been with PTAH since 2022 after relocating from California with her husband and cats.  She received her Bachelor of Science in Psychology from William Jessup University.  In her free time she enjoys spending time with family and crafting.

Pets:   Wally - Male Orange Tabby born in 2022

             Ahsoka - Female Siamese born in 2022

             Miso - Male Maine Coon Mix born in 2022

             Sabine - Female Lynx Point Siamese born in 2023

Favorite Quote:

"One cat just leads to another."  ~Ernest Hemingway



Veterinary Technician

Michael joined the PTAH team in 2022.  He has been working in the veterinary field since 2000.  If Mike is not busy with his twins, or fishing, he is reading to the kids at his wife's elementary school as the pirate Captain No Beard.

Pets:   Shasha - Female Golden Retriever born in 2010

             Shadow - Female DSH born in 2022

             Smokey - Male Russian Blue born in 2021

Favorite Quote:

"Life is too short to be angry."  ~Unknown



Kennel Technician, Student

Aubrey has been with the PTAH team since 2022.  She has an interest in veterinary medicine and hopes to pursue a career in this field once done with school.  She is currently taking veterinary classes offered at her high school.  She is very involved with FFA.

Pets:   Iris - Female Siberian Husky born in 2014

             Elsa - Female Siamese Mix born in 2014

             Ghost - Male Siberian Husky/ Malamute Mix born in 2016

Favorite Quote:

"You are braver than you believe, stronger than you seem, and smarter than you think."  ~A. A. Milne



Veterinary Technician

Rachel joined the PTAH team in 2023.  She grew up in Tennessee on 8.5 acres and moved to Texas in 1994 and started working in the veterinary industry in 2002.  Rachel was heavily involved in FFA and Animal Science all through out her school years.  Animals of any kind have been her passion since she was little.  She made a dream come true when she received her wildlife rehabilitation license in 2011 through Texas Parks & Wildlife.  She devotes her time during the day to loving on and caring for everyone's fur babies and at night rehabbing the wild ones in need and releasing them when it's time.  In her spare time she loves being with her kids and going camping, hiking, fishing, and really anything outdoors in nature.


Favorite Quote:

"Until one has loved an animal, a part of one's soul remains unawakened."  ~Anatole France

"If we teach people about wildlife, they will be touched.  Share my wildlife with me.  Because humans want to save things that they love."  ~Steve Irwin



Veterinary Receptionist

Samantha has been with the PTAH team since 2023.  She was born and raised in San Diego, California and moved to Texas in 2023.  She has been in the veterinary medicine field since 2018.  Her goal in this field is to be in a management position.  She married her husband in 2021 and they welcomed their baby girl in 2022.  Sam is a beach girl at heart, loves to be outdoors, and loves to hang out with her daughter.

Pets:   Malibu - Male Golden Retriever born in 2014

             Willow - Female Chow Chow/ Husky Mix born in 2018

Favorite Quotes:

"In bad times and in good, I've never lost my sense of zest for life."  ~Walt Disney  



Kennel Technician

Ashley joined the PTAH team in 2023 and is currently attending classes at Collin Community College.  Ashley was born and grew up in Kentucky before moving to Texas.  She has loved animals since she was little and has always wanted to work with them.

Pets:   Angel - Female American Shorthair born in 2020

             Maddie - Female Brittney Spaniel born in 2023

Favorite Quote:

"Animals are such agreeable friends - they ask no questions; they pass no criticisms."  ~George Eliot



Veterinary Technician

Jentrie has been with the PTAH team since 2023.  She knew from a young age that she wanted to work with animals and took classes in high school to obtain her CVA certification.  She is now studying for her LVT through Penn Foster online school.  Jentrie grew up in different cities east of Dallas and in Lewisville, and now lives in McKinney with her boyfriend and her pets.  Outside of work, she enjoys hanging out with her friends, exploring the outdoors and baking.

Pets:   Frankie - Female Maltipoo born in 2016

             Finley - Male Maltipoo born in 2016

             Faye - Female DSH born in 2023

             Jupiter - Female DSH born in 2023

Favorite Quote:

"If you don't like the road you're walking, start paving another one."  ~Dolly Parton



Kennel Technician, Student

Maddie has been with the PTAH team since 2023.  She is a senior at Prosper High School and a dual-credit student at Collin College.  She is currently doing all the veterinary classes available at her high school, and she will be attending Texas Tech in the fall, majoring in Animal Science.  She hopes to go to vet school to become a veterinarian.  In her free time, she likes to spend time with friends and be outside.

Pets:   Abby - Female Golden Retriever born in 2013

             Ranger - Male Orange Tabby born in 2016

Favorite Quote:

"Focus on the step in front of you, not the whole staircase."  ~Unknown



Veterinary Technician Assistant, Student, Seasonal

Hope has been with the PTAH Team since March 2020.  She has always loved animals and has always known that she wants to be a Veterinarian.  Hope is currently completing her undergraduate at Texas A&M University.  Outside of work, Hope enjoys relaxing on the beach and spending time with her friends.

Pets:  Violet - Female Yorkie born in 2014

Favorite Quote:

"Never say never because limits, like fears, are often just illusions."  ~ Micheal Jordan

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