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OPVMC: Our Retired Veterinarians


Mary Brummer, DVM

Mary Brummer, DVM, was raised in western New York. She received her undergraduate degree, a bachelor of arts in biology, from the State University of New York at Buffalo. She then earned her doctorate from Cornell University College of Veterinary Medicine in Ithaca, New York. Dr. Brummer spent her final summer before graduation from Cornell working at Orchard Park Veterinary Medical Center learning animal nursing care and assisting in surgical procedures. After graduation, she joined the team of veterinarians here. She has been practicing at Orchard Park Veterinary Medical Center since 1988.

Dr. Brummer has been interested in animal health and medicine since her teenage years. She was surrounded by science and art as a child, as were her three older brothers who also sought education and careers as physicians. During her college years, Dr. Brummer was encouraged by supportive veterinarians and professors who mentored her and stayed in touch through her veterinary training. Additionally, she developed strong personal friendships with classmates while at Cornell, including one in particular, David Brummer, now Dr. David Brummer, DVM, ACVIM, and they were later married. She returned to Orchard Park Veterinary Medical Center when David completed his internal medicine residency.

Dr. Brummer is proud to be part of the Orchard Park Veterinary Medical Center because this hospital offers the most advanced, caring veterinary practice in the region. She believes that our excellent reputation is the result of many years of hard work, good service, and high standards of care. Major advantages for patients at our hospital include having veterinary specialists on staff, our stellar support staff, and our 24-hour emergency service available for all. The new hospital building is welcoming, bright, and clean—a very comfortable place for a pet to visit. Dr. Brummer sees sick and well patients for preventive care, annual checkups, vaccinations, surgery, and emergency treatment.

She enjoys gardening, music, playing flute, cooking, and floral design. She and Dr. David Brummer have two adult children-one recently graduated with his PhD and the other; she recently completed medical school and started a residency program.

Dr. Mary retired from OPVMC in May 2017 after 33 great years at the hospital. She is thoroughly enjoying all the riches of life including family, friends, food, travel and gardening.

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David G. Brummer, DVM, Dipl. ACVIM

David G. Brummer, DVM, Dipl. ACVIM, knew he wanted to be a veterinarian since the third grade. After graduating from Amherst College, he entered the New State College of Veterinary Medicine at Cornell University in 1980. He received his Doctor of Veterinary Medicine, with distinction, in 1984. After completing an internship in small animal medicine and surgery at the Animal Medical Center in New York City, he returned to Cornell for a residency in small animal medicine. In 1991, he became a Diplomate of the American College of Veterinary Medicine (ACVIM).

Dr. Brummer and his wife, Mary, are both veterinarians and both practice at Orchard Park Veterinary Medical Center. They met while classmates at Cornell. The Drs. Brummer have two children and one granddaughter. Gordon (father of Clarke) is an engineer and Hannah is a pediatrician; all reside in Boston.

Dr. Brummer joined the staff of the Orchard Park Veterinary Medical Center in 1993 and became a partner in 1995. As a board-certified internist, he specializes in internal medicine. This specialty includes diseases of the heart, lungs, gastrointestinal tract, kidneys, liver, hormonal organs, and nervous system. The average day might find him performing ultrasound examinations, performing minimally invasive biopsy procedures, and performing a neurologic examination.

When not at work, Dr. Brummer enjoys oil painting, reading, gardening, and spending time with his family. He is an active member and elder of the Orchard Park Presbyterian Church, where he regularly leads adult Christian education classes.

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L. Mark Hedges, DVM

L. Mark Hedges, DVM, grew up in central Ohio. He received his Doctorate of Veterinary Medicine from The Ohio State University in 1982. Dr. Hedges joined the Orchard Park Veterinary Medical Center after graduation to work with Dr. Jack Laurie, DVM. In 1995, Dr. Hedges, along with his partners Dr. David Brummer DVM, ACVIM, and Dr. Susan Metzger DVM, purchased the Orchard Park Veterinary Medical Center from Dr. Laurie. Dr. Hedges was blessed to play a small part in an amazing team that worked together to help the practice grow in size and reputation. In 2017, after 22 years Dr. Hedges and his partners sold the practice to the current owners. Dr. Hedges has an interest in surgery and enjoys treating and providing health care for his patients.

Dr. Hedges is proud to say that his family is his greatest personal accomplishment. He and his wife, Grace have four wonderful daughters, and to date, six beautiful grandchildren. In his spare time, Dr. Hedges loves to visit his daughters, sons-in-law, and grandchildren, who are scattered between New York, Ohio and Michigan. Since the sale of the practice, Dr. Hedges has had the time and pleasure to join his wife Grace in serving with Joni & Friends Wheels For the World. This is a ministry dedicated to distributing and donating refurbished wheel chairs to people with disabilities around the world. Since 2016, Dr. Hedges and Grace have worked in India three times and have also done training for wheelchair distributions in Peru. They hope to be able to continue serving those with disabilities with Wheels for the World for many years to come.

Since the death of “Buddy”, Dr. Hedges’ beloved Cavalier King Charles Spaniel, the Hedges household has been without a pet. This unfortunately is due to severe allergies that several of the new family members have towards cats and dogs. However, his love for animals continues to be satisfied by providing care for his clients and their pets.

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Susan Metzger, DVM

Susan Metzger, DVM, was raised in the western New York area. She received her bachelor of science from Cornell in 1977 and her doctorate from the NYS College of Veterinary Medicine at Cornell in 1983. Upon graduation, she joined the Orchard Park Veterinary Medical Center. She, along with Dr. Mark Hedges and Dr. David Brummer, purchased the practice from Dr. John Laurie in 1995. In 2017 they sold the practice to a group of their young, enthusiastic, talented and hard working associates.

Dr. Metzger decided to become a veterinarian when she was about 10 years old. Her mother is a great animal lover, and their home was always a place where the neighborhood kids brought sick, injured, or orphaned animals. While in high school, she developed a strong interest in science, so a career in veterinary medicine just seemed to make sense.

When not working, Dr. Metzger loves the outdoors and enjoys hiking, biking, skiing, and gardening. Her family consists of her husband, Jay; their two sons, Jon and Matthew; her beloved dog, Kiko and her lovable but challenging cat, Bandit.

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