Our caring and compassionate veterinary care team!

Meet the Veterinarians & Team of Califon Animal Hospital in Califon! We’re pleased to provide exceptional vet care for your pets!

Please call us at (908) 832-7523 to speak to one of our caring veterinary staff members!

Mary Beth Hamorski, VMD
Large Animal Veterinarian

Years in Practice: 32
Education: Unversity of Pennsylvania School of Veterinary Medicine
Interests: eventing, breeding and showing ponies,skiing, pastels

Dr. Hamorski grew up in Scranton, Pennsylvania. She always loved animals and began riding horses as a young girl. From an early age she had aspirations of being a jockey and of becoming a veterinarian. During her college years at the University of Scranton she worked as a groom at the Pocono Downs Racetrack. She spent her summers during college in Lexington, Kentucky where she worked handling mares and foals, with lay-ups, and yearling prep. During that time, she also exercised horses and showed successfully in Western Pleasure.

After graduating cum laude from the University of Scranton in 1982, Dr. Hamorski began veterinary school at the University of Pennsylvania. During vet school, Dr. Hamorski focused on equine medicine, particularly in the areas of reproduction and sports medicine where she worked closely with faculty on research projects in these areas. She was also the President of the Penn Student Chapter of the American Association of Equine Practitioners. Dr. Hamorski graduated from veterinary school and obtained her VMD in 1986. Immediately following graduation, she joined Califon Animal Hospital. In her 30 years of mixed animal practice, Dr. Hamorski has helped to grow Califon Animal Hospital into the successful, progressive practice that it is today. As camelid patients gained popularity in the area, she attended continuing education to gain camelid expertise, seeing the practice’s first camelid patient in 1988. Dr. Hamorski became a practice owner in 1994. Her professional interests and expertise include reproduction, sports medicine, pleasure horses, and small ruminant medicine. She is active in a number of professional veterinary organizations serving as President of the NJ Association of Equine Practitionerst . She is a member of the American Association of Equine Practitioners as well as the American Veterinary Medical Association. She also serves on the Board of Directors of Mylestone Equine Rescue. She recently joined ISELP(International Society foe Equine Locomotor Pathology) as well as the NEAEP(Northeat Association of Equine Practitioners) and AASRP(American Association of Small Ruminant Practitioners).

Dr. Hamorski and her husband,Dr. Jeffrey Salatiello, live on their farm in Round Valley, NJ with their son, daughter and mother. They share their home with their two dogs, five cats, eight horses, and flock of chickens. The family takes pleasure in breeding Labrador Retrievers. Dr. Hamorski enjoys Three-day eventing and also breeds and shows Welsh-cross ponies in hand. She also enjoys skiing and working in pastels, for which animals are often her subjects. In 2012 they opened Pinnacle Farm, a 30 stall equestrian facility in Califon training and boarding hunters, dressage and event horses and ponies.

Jeffrey Salatiello VMD

Years in Practice: 32
Education: University of Pennsylvania School of Veterinary Medicine
Interests: Skiing,fishing, baseball, farming

Dr. Salatiello grew up in Morris Plains, New Jersey, knowing from an early age that he wanted to be a veterinarian. This passion was instilled after watching a live C-section on a Basset Hound performed at the 4-H Fair in Morristown, NJ. While growing up he spent many summers working at a local veterinary hospital. He obtained his degree with distinction from the University of Delaware in Animal Science. He then went on to receive his veterinary degree from the University of Pennsylvania School of Veterinary Medicine in 1986. After graduation, Dr. Salatiello joined a 10 doctor practice in central NJ becoming a partner after a few years. Spending more than 20 years as a managing partner he left to work at several practices closer to home then joining his wife at Califon in January of 2016. Dr. Sal as he is frequently referred to, is a member of the AVMA and NJVMA. His professional interests include soft tissue and orthopedic surgery,dentistry, internal medicine as well as wellness care. He enjoys skiing,fishing,playing baseball as well as coaching, and of course, working on the family farms with his wife and children.

Dr. Mikolaj Guzek

Years in Practice: 1
Education: Warsaw University of Life Sciences
Interests: Running, Cooking, Traveling

Dr. Mikolaj Guzek is originally from Poland. He received his doctorate degree in Veterinary Medicine from Warsaw University of Life Sciences. After graduating he followed his fiancée and moved to New York. He worked in several veterinary hospitals in Manhattan and Brooklyn as a veterinary assistant, technician and practice manager. After moving to NJ he shadowed Dr. Hamorski in her practice while working on obtaining his DVM license. Over the years in the veterinary field he developed an interest in Practice Management and Internal Medicine. He was very excited to return to the great team of Califon Animal Hospital. Dr. Guzek is a member of the American Veterinary Medical Association and the New Jersey Veterinary Medical Association. Dr. Guzek and his wife live in Westfield, NJ with their son Jan and orange tabby, Michau. In his spare time he enjoys running, cooking and traveling with his family.

Dr. Koster

Dr. Koster grew up in Scarsdale, New York. She was obsessed with horses from the first time she saw one in a picture book and began riding at the age of five. While working as a rider and instructor she developed a passion for training “difficult” horses, and began working closely with veterinarians to help rehabilitate these horses physically and mentally. After spending a year as a trainer and manager at Stracomer Stables in Bundoran, Ireland she returned to the states to attend Oberlin College where she majored in biochemistry. She attended The Ohio State University College of Veterinary Medicine and graduated in 2017 with honors in Equine Surgery. She completed an internship at Equine Specialty Hospital in Burton, OH, prior to returning to the east coast to join the staff at Califon Animal Hospital. Dr. Koster enjoys all aspects of equine medicine and has a strong interest in internal medicine, dentistry, and rehabilitation. She is an advocate of whole-horse wellness and enjoys working with clients to help them maximize their horse’s health, comfort, and performance. When not working she can usually be found riding her horse, hiking with her dog, or waiting on her cat.


Years in Practice: 35
Education: BS Animal Science Cook College Rutgers University
Interests: Running, hiking, traveling

Robin, our office manager, often fills in for all duties as required has been with the practice for many years. She grew up in Morris Plains, NJ surrounded by dogs, cats and horses. That love of animals encouraged her to pursue a degree in animal science at Rutgers Cook College. After college Robin worked at a large Standardbred breeding farm that lead to her connection at our hospital. She now enjoys hiking and running and has tried a few marathons including NYC and Boston! She enjoys her blue healer Alice. She and her husband, Tad, enjoy visiting their son in Jackson Hole in the summer and New Orleans in the winter.


Years in Practice: 20
Education: SUNY Cobelskill- Animal/equine husbandry
Interests: Agility, sheep herding, obedience, canine watersports, camping

Karen, our front desk receptionist and vet assistant, is owned by 4 busy Rottweilers. Growing up in rural Sussex County, she participated in the 4-H sheep raising club for 8 years. Karen received an associate degree in animal husbandry and equine studies from SUNY Cobelskill, NY. After working a number of years at equine breeding then showing facilities, Karen joined the team at our hospital in 1998.Karen trains and competes her Rottweilers in many disciplines including agility, obedience,sheep herding and water work. She and husband, Bill, enjoy camping and spending time with their dogs. Karen teaches puppy classes here at the hospital and is actively involved in Rottweiler rescue.


Years in Practice: 13
Education: BS Equine Studies Centenary College NJ
Interests: Dog agility, Rooting for the NY Giants, cross stitch

Audrey, our veterinary assistant has been a team member since 2005, grew up in Chester NJ. After graduating from Centenary College with a BS in Equine Studies she went to work at Windy Top Stables for Arlene Orr in Chester. After she left the stables she obtained a job at The Seeing Eye in Morristown NJ working in their breeding facility. Audrey came to our hospital first working part time then securing a job full time. Audrey has had Australian Shepherds that she has bred, shown in conformation, herding and agility.She currently has one Aussie, Freya. When not busy working, she loves rooting for The Giants, reading, counted cross stitch, baking and visiting family and friends.


Years in Practice: 10
Education: Bernards High School
Interests: Gardening, hiking with dog, tending her fish/frog pond

Rena, our veterinary assistant, has been a team member since 2008 after working a number a years in the animal health field. She is passionate about ensuring quality health care for all four-legged furry family members. Through the years Rena has come to be known as “the cat whisperer” as she has a keen sense of how our feline companions tend to be more fearful coming to the hospital. She can calm their fears and make their visit a positive experience. Rena proudly owns Otto, her black lab and can be frequently seen in the neighborhood on their daily walk. In addition to Otto she has 4 cats, one of which was hit by a car and surrender for adoption at an emergency clinic. Drs. Hamorski and Freeman amputated her tail and pinned/wired her fractured hind leg. Autumn was then nursed back to health and adopted by Rena! Being a total sucker for a sad story, Rena then adopted a kitten who was dropped off at 3 days of age in dire straits. She then nursed Ms Peeps back to health and adopted her too!


Laura joined our team in July 2016. She is the cheerful helpful voice you are likely to encounter when you call our office. She began working in the animal health field in high school and has worked as a receptionist, assistant and surgery tech. She shares her home with her husband, children, 4 rescue dogs and 2 cats. The entire family enjoys taking the dogs on hikes as well as kayaking and biking.