Dr. Mark O'Gorman graduated with honors from Texas A&M college of veterinary medicine in 1985.   He established his first practice in 1987 after spending 1 1/2 years as an associate in a mixed animal practice in Ponder, Texas. Dr. O'Gorman lives in Keller with his wife of 26 years, Elaine, his five children and his miniature dachshund, Hank Leonard.

Dr. Rob Reigle joined the professional staff in 1996. After completing undergraduate studies at Texas Christian  University, Dr. Reigle returned to his home state to attend veterinary school at the  University of  Illinois, where he was awarded the degree of Doctor of Veterinary Medicine. In 2001 he joined as a partner. Dr. Reigle lives in  North Richland Hills with his wife Jennifer and two daughters.

Dr. Bob Arend became a partner in 1989 after working 3 years as an associate in two separate small animal practices - the first in Galveston, and the second in Amarillo, Texas. He also spent a year working at a small animal emergency clinic in Lubbock and doing veterinary relief work. Dr. Arend lives in Hurst, with his wife of 20 years, Aida. He enjoys playing racquetball and traveling.

Dr. Brian Loveless did his undergraduate work in Animal Science at Oklahoma State University where he also completed his education earning a Doctorate degree in Veterinary Medicine. He joined the professional staff of Alliance Animal Health Center in the summer of 2007. Dr. Loveless lives in Fort Worth with his wife Lacey who also practices veterinary medicine in Fort Worth.  He enjoys fishing, OSU football, and other outdoor activities.