All of our doctors are members of the American Veterinary Medical Association, Texas Veterinary Medical Association, and the Dallas County Veterinary Medical Association.

The Texas Academy of Veterinary Practice is an organization that promotes high standards of veterinary medicine through continuing education.  Participation is voluntary and each member must obtain a minimum of 50 hours of continuing education annually, which greatly exceeds the 17 hours required by the State Board of Texas.  Through this high level of continuing education, our doctors can provide a higher quality of care for your pets. 

A native Dallasite, Dr. Baxter graduated from Texas A&M University College of Veterinary Medicine in 1975 and has practiced his entire career at Holt Veterinary Clinic.  He is a USDA-APHIS certified veterinarian for travel/export certificates.

He and his wife Karen have three daughters in college (one of them in veterinary school) and share their empty nest with dogs Elmo and Ollie and cat Milo. He enjoys reading, free-lance writing and almost anything having to do with the great outdoors. 

Dr. Bratton was born and raised in Dallas. He began working as a kennel assistant at Holt Veterinary Clinic while a sophomore at Highland Park High School , and he continued to work summers and holidays throughout high school and college. During his fourth year of veterinary school he completed his month-long clinical externship at Holt Veterinary Clinic. Dr. Baxter brought him on as a veterinarian in June 2003.  He is a member of the Veterinary Emergency Critical Care Society, Texas Academy of Veterinary Practice, carries Vet-Stem accreditation, and is a USDA-APHIS certified veterinarian for international travel/export certificates.

He and his wife, Amy, have a border collie mix, Ranger, and 2 cats, Puck and Annabelle. He is an avid cyclist and a passionate fan of the Texas Rangers, Dallas Mavericks and Texas A&M Aggies . He spends weekends off at Possum Kingdom Lake and vacations in the mountains at Eagle’s Nest , New Mexico.

Dr. Caldwell grew up and attended college in Findlay, Ohio.  Her family relocated to Texas and she attended Texas A&M University College of Veterinary Medicine.  She completed a clinical externship at Dallas Veterinary Surgical Center during her last year of veterinary school.  After graduating from veterinary school in 2001, Dr. Caldwell worked in the Dallas area prior to joining Holt Veterinary Clinic in March 2005.  She is a member of the Texas Academy of Veterinary Practice.

She and her husband, Brad, welcomed a daughter in September 2008.  They also have a lab mix, Spencer, and a spoiled cat, Smudgie.  She is a devoted fan of the Dallas Mavericks and Texas A&M Aggies, and she enjoys reading and traveling in her time off.

Dr. Parker was born in San Antonio, Texas and grew up in Dallas. She attended Highland Park High School , and her passion for animals led her to begin working at Holt Veterinary Clinic when she was 16 years old as a kennel assistant and receptionist. She continued to work at Holt as a veterinary assistant in the summers while she attended college at the University of Texas . After college, she spent a year as an animal keeper at the Austin Zoo before beginning veterinary school at Texas A&M University . During her final year of veterinary school, she performed her month long clinical externship at Holt Veterinary Clinic. After graduating from vet school in 2007, she became an official member of the Holt family!

Always having a passion for cats, she is a member of the American Association of Feline Practitioners (AAFP), the Texas Academy of Veterinary Practice, and also carries Vet-Stem accreditation . Dr. Parker has 3 cats, Caesar, Pompey and Augustus. She has a passion for sports, especially the Texas Longhorns and Dallas Stars . She also enjoys reading, interior design and movies in her free time.