Our Veterinarians in Plano

David Cinclair, DVM


Dr. Cinclair grew up in Plano and graduated from Plano Senior High School in 1987. A trio of very special Cairn Terriers and a love for animals were his inspiration to go to Texas A&M in pursuit of becoming a veterinarian. He attended Texas A&M and graduated magna cum laude in veterinary science. He also attended Veterinary School at Texas A&M and graduated magna cum laude in 1994. Dr. Cinclair moved to Frisco in 1994, and began practicing small animal medicine with an established and well-respected Plano practice. In 1999, he left the group and established Custer McDermott Animal Hospital in the West Allen/North Plano area, where he continues to practice today. Special interests include dentistry and dermatology.

Dr. Cinclair is a member of the Texas Veterinary Medical Association and the American Veterinary Medical Association. He is also an active member of the Texas Academy of Veterinary Practice, an organization whose members strive for excellence through participation in a high level of continuing education seminars and labs. Dr. Cinclair enjoys and appreciates the opportunity his profession allows him to work with and care for dogs and cats, and to establish relationships with his clients. Dr. Cinclair and his wife Becky moved back to Plano in 2001. The Cinclairs have been blessed with four wonderful children, two Cairn terriers, and a cat. Outside of work, Dr. Cinclair enjoys spending time with his family, the outdoors, and following local sports teams.

David Pilkington, DVM


Dr. Pilkington is a 1998 graduate of Texas A&M’s College of Veterinary Medicine. He knew he was destined to be a veterinarian after winning a cow milking contest in the first grade. While his career started with food animals, he is now happy to practice companion animal medicine. Dr. Pilkington moved from Connecticut to Texas in 1979, and became friends with Dr. Cinclair and his family shortly thereafter. He now lives in Plano with his wife Susan, their four children (Chandler, Bennett, Dorrie Beth, and Anne Marie), as well as their hairier children: Cotton, a DSH cat, and Penny, a King Charles Cavalier Spaniel (their newest addition).

When not practicing medicine or volunteering, Dr. Pilkington enjoys spending time with his family, playing softball, various outdoor activities, and often to his demise, cheering for the Aggies. He is also very involved with men’s groups and youth education at his church in Plano. He is very excited to practice veterinary medicine not only with an esteemed colleague, but a good friend. Dr. Pilkington believes veterinary medicine is about helping pets, and people too. He is dedicated to strengthening the human-animal bond.

Alexandra Brewer, DVM CVMA


Dr. Brewer is native to southeast Louisiana, where she attended LSU for both her undergraduate studies and veterinary school. Following graduation in 2007, she lived in various areas of the country, including Las Vegas and Charlotte, NC, before settling down in Texas.  She joined our practice in 2015 and has really enjoyed getting to know our clients and their pets. Recently, she earned her certification in veterinary medical acupuncture and is now offering that service.  She also enjoys preventative and geriatric care, internal medicine, and dermatology.

Dr. Brewer and her husband Jason have two young children, and they enjoy exploring the north Texas area. She also shares her home with a yellow Lab named Benny (Dr. Brewer’s first baby), and a Pug mix named Mattie.

Stephanie LaGrone, DVM


Dr. Stephanie LaGrone grew up in Plano, less than 5 miles away from CMAH. She graduated from Plano Senior High School in 2006. Growing up, she had a huge love for animals and brought home any stray she could find. She knew from a very young age that she wanted to be a veterinarian and began working at an animal clinic at the age of 17.

In 2010, Dr. LaGrone graduated from Louisiana Scholars’ College
at concentration in Scientific Inquiry. She then went on to receive her DVM from Louisiana State University School of Veterinary Medicine in 2014. In school, she worked with the Wildlife Hospital of Louisiana and is a huge fan of LSU football. After completing Veterinary school, Dr. LaGrone moved back to Dallas to be closer to her family.

At home Dr. LaGrone enjoys reading, cooking, and spending time with her fiancé Spencer, and their pets. She has 2 cats, a Great Pyrenees named Wyatt, and a terrier named Milo. She also has pet dwarf goats and chickens.