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Meet Our Team


Todd Wihlen, DVM

Todd Wihlen

Dr. Todd Wihlen, president of Monroe Veterinary Associates and director of Animal Hospital of Pittsford, joined the Animal Hospital of Pittsford medical team in 1996.

Dr. Wihlen grew up in Rochester and attended the State University of New York at Oswego. He graduated cum laude with a bachelor's degree in Biology in 1989. He pursued his veterinary education at the University of Missouri, College of Veterinary Medicine and was awarded his Doctorate of Veterinary Medicine cum laude in 1996. He then completed a one-year internship in small animal medicine and surgery at Veterinary Specialists of Rochester.

His professional interests include dentistry, surgery and senior pet care. Dr. Wihlen is a member of the New York State Veterinary Medical Association, the American Veterinary Medical Association and the American Animal Hospital Association. He also serves on the board of directors of Rochester Hope for Pets.

Outside the hospital, he enjoys running, biking and playing water sports in his spare time. He and his wife, Monique, are the proud parents of two daughters, Morgan and Hannah. Their four-legged family members include both dogs and cats.

Janine Ashton, DVM

Janine Ashton

Dr. Janine Ashton has cared for pets as a general practitioner at the Animal Hospital of Pittsford since 2008.

A native New Yorker, Dr. Ashton grew up in Beechhurst and attended Saint John's University, where she received her Bachelor's Degree in Biology in 2001. She continued her veterinary education at Ross University and was awarded her Doctorate of Veterinary Medicine in 2007. Dr. Ashton also holds a Master's Degree in Toxicology.

When she's not busy with her duties at the hospital, Dr. Ashton enjoys spending time outdoors and can often be found skiing and fishing. Her hobbies also include cooking and baking. Most of all, she enjoys spending time with her husband Ken Scheider, DVM, director at Perinton Veterinary Hospital and their three children (two sons and one daughter). They share their home with three dogs, Jasper, Lafonda and Tiki, and two cats, Jeter and Jaks.

Lisa Boelio, DVM

Lisa Boelio

Dr. Lisa Boelio is originally from New Jersey. She graduated from the University of Rochester in 2006 with a bachelor’s degree in evolution and ecology. Dr. Boelio attended veterinary school at Ross University, graduating in 2013. She completed her clinical year at Tufts University. Dr. Boelio has been practicing in the Rochester area for the last two years.

Her professional interests include surgery and geriatric medicine. Dr. Boelio and her husband, Adam, have the “best dog in the world!” Charlie is a coconut retriever, which is the name for mixed breed dogs from St. Kitts, where Charlie is from. In her free time, Dr. Boelio likes to garden, cook, read and travel to places with good snorkeling.

Nick Delahanty, DVM

Nick Delahanty

Dr. Nicholas Delahanty is a veterinarian at Pittsford Animal Hospital, where he has worked since June 2010. He began working with animals in 2001 as an animal care taker at the Liverpool Health Center in Liverpool, N.Y., before earning his Doctorate in Veterinary Medicine in 2010 from Kansas State University.

Originally from Astoria, Queens, Dr. Delahanty studied ecology and evolutionary biology at the University of Rochester where he earned his Bachelor of Science in Biology in 2005. In addition to his Doctorate in Veterinary Medicine, Dr. Delahanty holds a Certificate in Dentistry from the Illinois College of Veterinary Medicine. Beyond general practice and dentistry, Dr. Delahanty's professional interests include surgery and pain management.

His love for animals does not end at the clinic doors as he provides a home to his own dogs and cats. During his free time, he is an avid biker often commuting to work, and enjoys Rochester city living, cooking, painting and restoring his historic home.

Alexis Deyo, DVM

Alexis Deyo

Dr. Deyo grew up in Brighton, NY. She began working in the animal care industry after receiving her bachelor’s degree in psychology from Ithaca College.

After graduation, she worked as an adoption counselor for the Erie County S.P.C.A., and both a veterinary technician assistant and a certified veterinary technician at Red Bank Veterinary Hospital in New Jersey. She then obtained her Doctorate of Veterinary Medicine at Cornell University. She completed externships at Veterinary Specialists & Emergency Services and Pittsford Animal Hospital while in veterinary school.

Dr. Deyo has one dog, Kiko, and two cats, Bo Bo and Sophie. In her free time, she enjoys gardening and baking.

Natalie Gregory, DVM

Natalie Gregory

Dr. Gregory is originally from Unadilla, NY. She earned her Doctorate of Veterinary Medicine from Purdue University, where she graduated with distinction. Prior to that, Dr. Gregory graduated summa cum laude from SUNY Cortland where she majored in biology and minored in chemistry.

Her professional interests include internal medicine, dermatology, wellness care and parasite prevention.

Dr. Gregory has a yellow Lab named Olive and a teddy bear hamster named Ricky. In her spare time, she enjoys bowling (her family owns a bowling alley), reading and watching the Buffalo Bills.

Sara E. Heslop, DVM

Sara E. Heslop

Originally from Fair Haven, New York, Dr. Sara Heslop received her bachelor's degree in biology from Cornell University before being awarded her Doctorate of Veterinary Medicine from Tufts University in 2011. She received the International Veterinary Medicine Post-Graduate Certificate and Sarah Lee Irwin Wildlife Medicine awards.

She completed an internship in small animal medicine and surgery at Oradell Animal Hospital in New Jersey. Her professional interests include conservation, zoo, wildlife medicine and the "One Health" approach to the intersection of human and animal medicine.

She shares her home with two cats, Darwin and Gibson, as well as two mixed breed dogs, Odin and Pheobe. Her hobbies include traveling and volunteering for animal conservation and health programs worldwide, such as Bambelela Primate Sanctuary in South Africa and Northern Lights Wildlife Sanctuary in British Columbia. She also enjoys outdoor activities, such as hiking, kayaking and camping, as well as painting.

Zoe Patterson, BVetMed

Zoe Patterson

Dr. Zoe Patterson is originally from Gladstone, Manitoba, Canada. She is relocating to Rochester from London, where she recently completed veterinary school at Royal Veterinary College. She completed several externships and rotations in small animal veterinary care while in veterinary school.

Prior to that, she earned a bachelor’s degree in psychology from Dalhousie University in Halifax, Nova Scotia. While completing her undergraduate degree, Dr. Patterson worked as a veterinary assistant at Halifax Veterinary Hospital.

Samantha Tandle, DVM

Samantha  Tandle

Dr. Samantha Tandle is an associate veterinarian at Pittsford Animal Hospital. Originally from Seneca Falls, NY, she graduated from Hobart & William Smith College with a degree in biology. She received her doctorate of veterinary medicine from Cornell University in 2016.

Her professional interests include behavior and facilitating the human-animal bond. She loves that she is able to see a little bit of everything working in a general practice.

Dr. Tandle shares her home with her significant other, Ryan; Rowan, their son; three cats, Squeakers, Inka, and Clementine; and one fish named Blue. In her free time, she enjoys reading, playing, and exploring with Rowan and is a fan of the Buffalo Sabres!

Caitlin Whyle, BVetMed

Caitlin  Whyle

Dr. Caitlin Whyle grew up in Lancaster, N.Y. She graduated from Canisius College in 2012 with a bachelor's degree  in biology and a minor in animal behavior. She received her Doctorate of Veterinary Medicine from the Royal Veterinary College in 2016. Dr. Whyle then completed a rotating internship at Veterinary Specialists & Emergency Services. 

Her professional interests include neurology, cardiology, oncology and exotics. Dr. Whyle has two mixed-breed dogs named Bowie and Sadie and three cats named Blackie, Marshmallow and Chip.

Management Team

Sheila Casler
Hospital Manager

Sheila Casler

Sheila Casler is the hospital manager at Animal Hospital of Pittsford. She has been working in the animal care industry for 18 years.

Sheila is proud to be part of a professional team practicing high-quality medicine that makes client and patient needs a priority.

She has a small menagerie of her own: two dogs named Murray and Millie, two cats named Wendell and Oscar, and one bunny named Lance.

Roger Keymel, LVT
Technician Supervisor

Roger Keymel

Roger Keymel is the technical manager and head technician at the Animal Hospital of Pittsford. Born and raised in Rochester, NY, he is now a licensed veterinary technician and has been part of the animal care field since 1991. Roger studied Animal Science at Cornell University.

Roger believes that AHOP is the best animal hospital around and is proud of the high-quality patient care offered here. He loves that the team is always looking to improve and draw upon the individual talents of team members.

Outside of work, he enjoys spending time golfing, boating, gardening, and doing house renovations. He also loves spending time with his family: Madelyn, Kelly, Kaylin, and Kenzie. 

Alexa Hernandez
Animal Care Assistant Supervisor

Alexa Hernandez

Alexa Hernandez is Animal Hospital of Pittsford’s newest Animal Care Assistant Supervisor and has been with the hospital since May 2017!  Altogether, Alexa has worked in the animal care industry for about three years.

She grew up in Fairport, NY and went on to receive a bachelor’s degree in biology from The University of Rochester.  Alexa has always loved animals so it’s no surprise that she ended up in this field of work!  Her favorite aspect about working at the hospital is being able to help the patients while working with people who share the same passion as her.

At home, Alexa has three pets of her own – Nala and Nemo who are orange tabby cats, and Tia who is a Yorkie mix.  Alexa likes to spend as much time by the water as possible, so you’ll find her kayaking, hiking, and camping with her family. 

Kristy Throumoulos
Client Service Supervisor

Kristy Throumoulos

Kristy Throumoulos is the Client Service Supervisor at Pittsford Animal Hospital, where she has worked since 2016. She is currently attending Medaille College to become a  Licensed Veterinary Technician.

Kristy enjoys hearing stories from clients about their pets. She likes working at Pittsford Animal Hospital because of the fast pace and amazing coworkers. She has two pitbulls, Vader and Ocean. In her free time, Kristy enjoys spending time with her family and volunteering for Pitty Love Rescue.

Joanne Palermo
Client Service Shift Supervisor

Joanne Palermo

Joanne Palermo is a client service supervisor at AHOP, where she has worked for 22 years. Before working with animals, she was a dental hygienist for 11 years.

She and her husband share their home with two dogs named Paulie and Roxy, two cats named Sweetie and Arnold, a cockatiel named Dundee, a Russian tortoise named Shelly, and a beta fish. In her free time, Joanne likes to crochet, read, and play in chime choir.

Stacy Kindler
Kennel Supervisor

Stacy Kindler

Kennel supervisor Stacy Kindler joined the Animal Hospital of Pittsford staff in 2000. She loves working with animals and enjoys getting to know all of the pet guests that stay here at the hospital. Stacy likes to spend her free time with her family, friends and numerous pets. She also enjoys reading, watching movies, and going camping and fishing (where she always throws the fish back).

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