Dr. Jennifer Hennessey, DVM, CVJ, CCRP, CVAT, Fear Free® Certified – Hospital Owner

Owner of the Animal ER of Northwest Houston, Dr. Jennifer Hennessey Donaldson has over 25 years of experience in emergency and critical care. Dr. Hennessey’s vision of an emergency practice designed and devoted to the customized care of both families and their pets lead her to develop the Animal ER in 2014.

A 2005 Cum Laude graduate of Texas A&M College of Veterinary Medicine, Dr. Hennessey carries additional training as a Certified Veterinary Journalist with the American Society of Veterinary Journalists. Dr. Hennessey is published in numerous magazines and journals, has a column in the Texas Veterinarian magazine, as well as is a frequent guest for Houston’s Fox 26, KPRC 2 News, Houston Life, and Great Day Houston. Her professional interests include prevention of emergency illness, utilization of lipid emulsion for toxin exposure, and management of trauma patients.

Dr. Hennessey serves on the TVMA Public Relations Committee as well as holds memberships with the Veterinary Emergency & Critical Care Society, the Harris County Veterinary Medical Association, the Texas Veterinary Medical Association, Veterinary News Network, the American Veterinary Medical Association, the American Association of Rehabilitation Veterinarians (AARV), the International Association of Veterinary Rehabilitation and Physical Therapy (IAVRPT), the International Veterinarian Academy of Pain Management (IVAPM) and the International Sled Dog Veterinary Medical Association.

*Proud Fear Free Certified Veterinarian*

Off-site, Dr Hennessey is actively involved with the Texas A&M College of Veterinary Medicine helping support their local emergency medicine society, and works with vet students onsite at the ER through her externship and mentoring programs; she also serves on the TVMDL Advisory Council. Dr. Hennessey, in 2014, enjoyed time as the Program Director at Pima Medical Institute and helped launch their new Veterinary Technician program. In 2015, Dr. Hennessey was included as a veterinary advisor for a new project evaluating the nutritional care for dogs with cancer at the Keto Pet Sanctuary.

Outside of the ER, Dr. Hennessey is a mother of two amazing kiddos and proud wife of Rob Donaldson. Committed to her own health and well-being, Dr. Hennessey is an International Bodybuilding Federation (IFBB) Professional athlete after winning the NPC Universe National Championship in 2018; she is also a multiple pageant titleholder and is the current reigning Mrs Alaska 2022, American Women of Services pageant queen. Dr Hennessey is licensed as a veterinarian in both Texas and her second home, Alaska.

On a mission to stay connected and serve her local communities, Dr Hennessey has proudly partnered with the City of Houston and Harris County along with Precinct 5 as extension of care for seized animals, volunteering her expertise and services for the Harris County Animal Cruelty Task Force.

American Women of Service 2022

  • Animal ER of Northwest Houston
  • 2021 Best Veterinarian Houston Chronicle
  • 2021, 2020 Cypress Business Award
  • 2019 DVM Top500 US Award
  • 2019 NACA Diane Lane Service Award
  • 2019 Business Intelligence Woman of Year
  • 2019 Stevie Business Awards -Community Programs and Public Relations -2x Winner
  • 2018 SBDC Woman Business of the Year
  • 2017 CyFair Chamber Small Business of the Year
  • 2014-2021 CyFair Best Veterinarian Award
  • Harris County Animal Cruelty TaskForce
  • Wonder Pet Rehab & Recovery
  • NeuFit Certified Practitioner
  • Iditarod Veterinary Team
  • TVMA PR Chairwoman
  • TVMDL Advisory Council

Mrs Corrie Robison, (CCRA pending) Hospital Administrator


Courtney Larwa, (CCRA pending) Program Manager


Allison McDearman, LVT (CCRP pending) Therapy Assistant


Giovanna Hodges, Office Manager


Rachael Shaddox, Executive Assistant


ER Veterinary Staff

  • Jack Ying, DVM, Senior Clinician
  • Bryttani Davis, DVM
  • Tiffany Flowers, DVM
  • John Mehanni, DVM
  • Jetaime Miller, DVM
  • Leah Myles, DVM
  • Gabriella Nieves, DVM
  • Erum Qayum, DVM
  • Amanda Richards, DVM
  • LouEllen Wills-Agbedo, DVM

Support Staff

  • Skylar Johnston – Client Service Specialist
  • Angel Butler – Client Service Specialist
  • Melissa Hodges, ER Technician
  • Mayra Trevino, ER Technician
  • Brianna Willis, ER Technician
  • Kimberly Jackson, ER Technician
  • Jazmyn Rediske, ICU Technician
  • Anne Palm, ER Relief Technician
  • Demarcus Caples, ER Relief Technician
  • Ruben Robles, ER Relief Technician
  • Kristen Grady, ICU/In-Patient Relief Technician
  • Katherine Trotter, ER Technician
  • Gary Jones, ICU/In-Patient Relief Technician
  • Candice Montalvo, ICU/In-Patient ReliefTechnician
  • Sarah Reid, ICU/In-Patient Relief Technician
  • Antionette Rodriguez, ICU/In-Patient Relief Technician
  • Courtney Larwa, Wonder Pet Program Manager
  • Allison McDearman, LVT, Wonder Pet Rehab Assistant