Our Team
Meet Our Veterinary Team
Meet the Veterinarians & Team of Muddy Creek Animal Hospital! We’re pleased to provide exceptional vet care for your pets!
Get to know our team!
Dr. Grant Nisson, D.V.M.
Veterinarian
Dr. Nisson received his Bachelor’s from the University of Maryland in 1977. He graduated from the University of Georgia College of Veterinary Medicine in 1981. After practicing for several years in California, he and his wife, Debbie, moved back to Maryland to open Muddy Creek Animal Hospital. Since 1988, it has grown into a five-doctor hospital with 30 employees. Dr. Nisson has been voted best Veterinarian by the readers of Bay Weekly Magazine. Dr. Nisson enjoys eco-travel and recently went to Botswana, Africa. He and Debbie have an African Grey Parrot, two parakeets, two donkeys, and three dogs named Lilly, Levi, and Francis.
Dr. Amanda Merton
Veterinarian
Dr. Merton received her Bachelor’s Degree in Animal and Poultry Sciences from Virginia Tech in 2019. She graduated from the Virginia Maryland College of Veterinary Medicine in 2024. Dr. Merton grew up in West River and is excited to return to the area and work at Muddy Creek Animal Hospital as a Veterinarian. Dr. Merton has an interest in internal medicine, surgery, and oncology. In her spare time she enjoys crocheting, reading, and spending time with her family. She has a loveable golden retriever, Quinn, and two cats, Nala and Cutie.
Dr. Glenn Gray
Medical Director
Dr. Gray received his Bachelor of Zoology from the University of North Carolina Chapel Hill in 1985. He graduated from North Carolina State University College of Veterinary Medicine in 1990. Dr. Gray has been practicing at Muddy Creek Animal Hospital since March 2001 and became part owner of the hospital in June 2003. He became the Medical Director in 2019. His main veterinary field of interest is internal medicine and multimodal pain management for dogs and cats. Dr. Gray enjoys playing golf in his spare time and socializing with friends. He and his wife, Wendy, have two cats named Agnes and Myrtle and one senior citizen pit bull, Lucille.
Dr. Dorian Haldeman
Veterinarian
Dr. Haldeman received her Bachelor’s of Biology from the University of Richmond in 1997 and graduated from the University of Pennsylvania School of Veterinary Medicine in 2001. Her special interests are internal medicine, ultrasound, and traditional Chinese Medicine. Dr. Haldeman became a certified acupuncturist in 2014. She is also a certified member of the Penn Hip Improvement Program for the evaluation of dogs for hip dysplasia. She enjoys competitive sailing and cruising, fishing, knitting, and spending time with her husband, Jeffrey, and her cat, Duncan, aka Gato.
Dr. Lisa Taylor
Veterinarian
Dr. Taylor received her Bachelor’s degree in Zoology from the University of Maryland in 1986. She graduated from Virginia-Maryland Regional College of Veterinary Medicine in 1990. Dr. Taylor specializes in internal medicine, endocrinology, and feline medicine. In her spare time, she enjoys hiking with her dog, Abby, kayaking with friends, spending time with her children, and crabbing with her partner, Mike.
Dr. Linda Murray
Veterinarian
Dr. Murray received her Bachelor’s Degree in Biology/Psychology from Middlebury College in 1996 and graduated from the University of Pennsylvania School of Veterinary Medicine in 2003. She joined Muddy Creek Animal Hospital in 2006. She specializes in Internal Medicine, Behavior/Neurology, Ultrasound, and Hospice Care. Dr. Murray enjoys spending time with her partner, Matt, her twin daughters, and her active Irish Setter, Penny, and crazy kitten, Simon.
Dr. Shannon Talbott
Veterinarian
Dr. Talbott received her Bachelor’s degree from George Washington University in 1994. She graduated from the Virginia-Maryland Regional College of Veterinary Medicine in 2002. She has special interests in dentistry, internal medicine, and geriatric care. Dr. Talbott enjoys boating, hockey, and adventures with her husband Mark, son Nate, and marvelous mutt Maisie.
Dr. Soraya Sajadian
Veterinarian
Dr. Sajadian has been a resident of Anne Arundel County since attending Broadneck Senior High School as a member of the Class of 2000. She received her Bachelor of Sciences degree at the University of Maryland – College Park in 2003. She earned a Master’s degree at Colorado State University in Fort Collins, CO. She later attended the Virginia-Maryland Regional College of Veterinary Medicine, graduating in 2010. She has practiced around Anne Arundel County for the past 12 years and is excited to be a member of the Muddy Creek Animal Hospital, starting in March 2022. When not at work, Dr. Sajadian enjoys attending concerts, traveling, talking sports, and trying to improve the behavior of her two unruly pitbull rescues, Ham and Chaz.