Our caring and compassionate veterinary care team

Meet the Veterinarian and team of Spring Grove Animal Hospital in Spring Grove, PA. We are pleased to provide exceptional veterinary care for your pets. Please call us at 717-739-8192 to speak to one of our caring staff members.

Dr. Les Mack

Veterinarian / Owner

Dr. Les Mack grew up in California, where he was born with a natural love for animals. A graduate of Virginia-Maryland Regional College of Veterinary Medicine, he has practiced in the York & Harrisburg areas for over 20 years.

Dr. Mack founded Spring Grove Animal Hospital in 2010 and now lives in Dover with his wife, Kathy.  He has several dogs and cats: Loki, Sasha, and Squish, as well as 9 horses and a mini mule.  When not in the hospital caring for patients, you will find him on his farm with his horses.

Heather Billman

Office Manager/Veterinary Technician

Heather is our manager and has been working at the clinic since 2016.  She and Dr. Mack worked together previously at another practice in York, PA.  She is a graduate of Harcum College in Philadelphia, PA, with a degree in Animal Center Management, where she did an internship with the Philadelphia Zoo.

Heather and her husband, Mike, live in York with their two children, Ty and Ava, and a menagerie of pets.  They have Ella, an Irish Wolfhound, three goldfish, a Siamese cat named Sheldon, a Maine Coon cat, Zombie, and a domestic short hair cat named Jimmy.

In her spare time, Heather  spends time with her family, including attending many school sporting events in Lacrosse, Football, Cheerleading, and Gymnastics.