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7 days a week!

800 W. Jericho Turnpike, Huntington, NY 11743

Call us at 631-923-3210

Pet Emergency at West Hills Animal Hospital and Emergency Center


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Emergency Veterinarians

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West Hills Animal Emergency and Critical Care Center

Overnight Emergency Doctors

Jonathan Bingham, Emergency Veterinarian

Dr. Jonathan Bingham

Education: Ross University, Louisiana State University

Dr. Jonathan Bingham is one of our overnight emergency veterinarians. Veterinary medicine is actually a second career for Dr. Bingham. He started off as a teacher, obtaining a Master’s in Biology from St. John’s University. For five years he taught Biology, Chemistry and Physics at a prestigious private high school on the south shore, and also was an adjunct professor of Biology and Anatomy & Physiology at Suffolk County Community College (a position he still holds part-time!). With a love for animals and passion to become a veterinarian, Dr. Bingham went back to school and obtained his Doctorate of Veterinary Medicine from Ross University, where he graduated with honors in 2013. He completed his clinical year at Louisiana State University. Dr. Bingham practiced for a few years on Long Island prior to joining our team. In his spare time he can be found fishing on the south shore.

Irma Manasherov, Emergency Veterinarian

Dr. Irma Manasherov

Education: University of Florida

Dr. Irma Manasherov was born in Georgia, Former Soviet Republic and moved to New York City when she was a young girl. She speaks Georgian and Russian fluently. She received a Bachelor's in Biology from Boston University and received her DVM from University of Florida. Dr. Irma completed her internship at Hollywood Animal Hospital in sunny south Florida. She then went on to work as an emergency doctor at Red Bank Veterinary Hospital in New Jersey before joining our team at West Hills. Dr. Irma is very happy to be back in Queens and practicing in New York. She has a Quaker parrot named Goscha and a cat named Lily who get along famously. Goscha often sleeps on her shoulder while Lily slumbers on her lap. Dr. Manasherov enjoys learning how to cook delicious Georgian food from her grandmother. She is mildly obsessed with Starbucks and is often found reading a book and enjoying their beverages during her free time.

Daytime Emergency Doctors

Alan Coren, Emergency Veterinarian

Dr. Alan Coren

Education: Cornell University

Dr. Alan M. Coren, a graduate of Cornell University with Phi Zeta honors in 1980, is our director and senior staff member. Dr. Coren began our practice in May 1982 and under his guidance, we have grown to become one of Long Island's largest, most respected veterinary practices.

He is an active member of the AVMA, NYSVMS, LIVMA, and AAHA, amongst other professional organizations. An accomplished surgeon and medical doctor, he leads our group through his desire to always provide the best possible care for his patients and service for their owners.

Dr. Coren is an avid sailor, skier, mountaineer, cyclist, and fitness enthusiast. He lives in Dix Hills with his wife, Karen, and occasionally his granddog, Kobe, comes to visit for a long weekend.

Jared Coren, Emergency Veterinarian

Dr. Jared Coren

Education: Cornell University

Dr. Jared Coren is proud to be a part of the West Hills team. Being the son of Dr. Alan Coren, he grew up going to work with his dad and has filled a variety of roles at West Hills Animal Hospital over the years. He obtained his Bachelor of Science Degree from Cornell University, where he graduated Summa Cum Laude. He then pursued his Doctorate of Veterinary Medicine from Cornell University, graduating in the Top 10% of his class. Dr. Jared was inducted into the Phi Zeta Honor Society as a third year veterinary student, an honor reserved for the top ranked members in the class. While in veterinary school, Dr. Jared was a two-time award winner of the Finger Lakes Kennel Club Award, an award given to a student that displayed a strong interest in purebred dogs. He was also awarded the AKC Veterinary Outreach Award for his dedication to the health and well-being of companion animals. As a 4th year veterinary student Dr. Jared received The Neuroanatomy and Clinical Neurology Award for his outstanding expertise and interest in Neurology.

After veterinary school, Dr. Jared pursued an internship in medicine and surgery at the prestigious Animal Medical Center in New York City. Dr. Jared has a strong interest in Ophthalmology, Internal Medicine (especially endocrine disorders), and Reproduction. Over the years he has become very active and familiar with the Bulldog breed and currently works with a number of breeders to perform progesterone levels to time ovulation, C-Sections, and help keep their lines healthy. He is a member of the American Veterinary Medical Association, New York Veterinary Medical Society, the Long Island Veterinary Medical Association, and the American Animal Hospital Association. Dr. Jared has been nominated for Best Veterinarian on Long Island from 2014-2017. He currently lives in New York City with his wife, Jessica, and Rhodesian Ridgeback, Kobe.

Mario Costa, Emergency Veterinarian

Dr. Mario Costa

Education: Western University of Health Sciences

Dr. Mario Costa was born and raised in Queens, NY. He received a Bachelor of Science degree from Binghamton University in 2013. Following graduation, Dr. Costa moved out to California to attend veterinary school at Western University of Health Sciences where he received a Doctorate of Veterinary Medicine degree in 2017. His professional interests include surgery, emergency medicine and community practice. Outside of work, Dr. Costa enjoys playing the piano, hiking, reading, and cuddling with his dog, Shayna.

Jessica DeAcetis, Emergency Veterinarian

Dr. Jessica DeAcetis

Education: Western University of Health Sciences

Dr. Jessica DeAcetis grew up in Cold Spring Harbor, NY. Her first dog as a child, a West Highland White Terrier, was in fact a patient of West Hills Animal Hospital many years ago. She earned her undergraduate education at Boston University and her veterinary education at Western University of Health Sciences in Pomona, CA. After graduating, she completed a one-year general medicine and surgery internship, followed by a one-year small animal surgery internship at Long Island Veterinary Specialists in Plainview, NY. Since then, she has worked in both emergency medicine and in general practice. She is also a graduate of the Chi Institute Small Animal Acupuncture program.

Dr. DeAcetis currently shares her home with a black domestic shorthair cat named Chloe and a rescue pit mix named Mildred!

Bill Ditchik, Emergency Veterinarian

Dr. Bill Ditchik

Education: Ohio State University

Dr. Bill Ditchik knew he wanted to be a veterinarian ever since the age of five. He grew up in Freehold, NJ and obtained his Bachelor of Science degree in Animal Sciences from Rutgers, The State University of NJ. Upon admission, Dr. Ditchik was awarded a full scholarship to Rutgers, the Presidential Scholarship, one of only three individuals to receive this prestigious award. As an undergraduate, Dr. Ditchik became involved with The Seeing Eye program and helped raise dogs for the blind community. He was the recipient of multiple academic awards and graduated from Rutgers with Magna Cum Laude honors.

This past year, Dr. Ditchik received his Doctor of Veterinary Medicine from The Ohio State University, and graduated within the top third of his class. In Columbus, OH, Dr. Ditchik served as president of the Buckeyes for Greyhounds organization, a student-run club devoted to rehabilitating injured racing dogs and finding them new homes. He currently lives with one of these ex-racers, a goofy greyhound named "Rockdown Rey" (or Rey for short), and is very passionate about greyhound medicine and behavior. Dr. Ditchik enjoys spending his free time in Long Island with Rey and his two younger siblings - Conner, 8 years old, and Kaitlyn, 5 years old.

Jeremy Lancer, Emergency Veterinarian

Dr. Jeremy Lancer

Education: Massey University, New Zealand

Dr. Jeremy Lancer grew up in Melville, NY and, by the young age of seven, he already decided on a career. His path to becoming a veterinarian began in high school, when he volunteered at local veterinary clinics and a wildlife rehabilitation center. Dr. Lancer attended Binghamton University and received a BS in psychobiology in 2003. While in college, Dr. Lancer played lacrosse, worked as a resident assistant, volunteered at animal shelters and was a member of two ambulance corps. After graduation, he worked as a veterinary assistant in general and referral veterinary practices before moving to New Zealand for veterinary school.

Dr. Lancer graduated from Massey University, an AVMA-accredited veterinary school, in 2009.  He then spent two years working in a rural mixed practice, treating everything from dogs and cats to sheep and goats. He returned to Long Island in 2012 and completed an intensive year-long internship at the Veterinary Medical Center of Long Island, receiving multiple awards for his work.  Dr. Lancer’s interests include clinical pathology, behavior, dermatology, soft tissue surgery, nutrition and infectious diseases. Dr. Lancer has a Pit bull named "Logan" and two cats named "Tui" and "Kea." He currently resides in Huntington and in his free time enjoys out-door activities, especially mountain biking, basketball, hiking and running. 

Stacey Ries, Emergency Veterinarian

Dr. Stacey Ries

Education: Cornell University

Dr. Stacey A. Ries is a graduate of Cornell University, where she earned a Bachelor of Science Degree in Animal Science in 1991 and her Doctorate of Veterinary Medicine in 1995. Dr. Ries grew up in the Adirondacks but has been practicing on Long Island since 1998. While the focus of Dr. Ries’ career has been providing exceptional client and patient care in General Small Animal Practice, she has also worked in Emergency/ Critical Care settings and spent two very rewarding years in Shelter Medicine as a staff veterinarian at The Michigan Humane Society in Detroit.

When not at work, Dr. Ries enjoys gardening, alpine mountaineering, ice climbing, Obstacle Course Racing and spending time with her family. She currently “shares her home with” (code phrase for “lives to serve”) five guinea pigs, a former junkyard cat named Opie and an intolerably spoiled Beagle Mutt named Thelma.

Silvia Rodriguez, Emergency Veterinarian

Dr. Silvia Rodriguez

Education: Universidad de San Carlos de Guatemala

Dr. Rodriguez was born in New Orleans, LA and was raised in Guatemala City. She attended veterinary school at Universidad de San Carlos de Guatemala, the only veterinary school in the country. After graduating from vet school she worked in Guatemala’s national zoo La Aurora as a veterinarian for 5 years. Dr. Rodriguez moved to Mississippi where she worked as a veterinary technician while obtaining certification by the American Veterinary Medical Association (AVMA) through the Educational Commission for Foreign Veterinary Graduates (ECFVG). Outside of work, Dr. Rodriguez enjoys outdoor activities and watching sports with her dog Chino who she raised since he was 2 weeks old.

Jason Siegelheim, Emergency Veterinarian

Dr. Jason Siegelheim

Education: University of Florida

Dr. Jason Siegelheim grew up in Dix Hills, New York. He attended Cornell University, where he earned a BS in Animal Science in 2008. He went on to study at the University of Florida College of Veterinary Medicine in Gainesville, where he gained experience in both small and exotic animal medicine, graduating in 2012.

Dr. Siegelheim went on to spend four and a half years working at Central Animal Hospital in Scarsdale, New York. There, he cared for dogs, cats, rabbits and exotic pets, including birds, reptiles and all types of small mammals. He also worked with wildlife brought in by the Greenburgh Nature Center staff, local wildlife rehabilitators and the Greenburgh Police. Since November 2014, Dr. Siegelheim has also provided veterinary services at the City of Yonkers Animal Shelter, where he performs spays, neuters and other surgeries on adopted dogs and cats.

Dr. Siegelheim’s professional interests include dentistry, dermatology, neurology, and small/exotic animal medicine and surgery. At home, he cares for his dog, Jee, a New Guinea Sideneck Turtle and a flying squirrel named Icarus. He currently resides in North Riverdale and enjoys hiking with Jee, rock climbing, traveling and watching movies.

Tiffany Sikalas, Emergency Veterinarian

Dr. Tiffany Sikalas

Education: University of Pennsylvania

A native of Long Island, Dr. Tiffany Sikalas earned her Bachelor’s degree in History with a minor in Chemistry from Hunter College in 2008. After college, she went on to earn her VMD degree from the University of Pennsylvania in Philadelphia, PA. She then completed a rotating small animal medicine and surgery internship at the ASPCA Animal Hospital in New York, NY. After spending some time practicing emergency medicine in Connecticut Dr. Sikalas was eager to return home, and happily joined our team at West Hills Animal Hospital. She currently lives in East Setauket with her husband Nick and their four dogs, Hugo, Weeble, Peter Griffin, and Madam Kerfluffle.

Kimberly Vissichelli, Emergency Veterinarian

Dr. Kimberly Vissichelli

Education: Ross University, University of Minnesota

Dr. Kimberly Vissichelli has wanted to be a veterinarian since she was a child. She was born and raised on Long Island, and then attended Pennsylvania State University where she earned a B.S. in Animal Science. Dr. Vissichelli spent a year working at a veterinary hospital after college before attending Ross University School of Veterinary Medicine on the island of St. Kitts, completing her clinical year at the University of Minnesota. Dr. Vissichelli has worked in general practice on Long Island since graduating in 2011 and is thrilled to be part of the team at West Hills. She has many fur babies; several cats she acquired while fostering in high school, two cats and a dog from St Kitts, and a retired racing greyhound, all of whom she loves with all her heart. Her personal interests include martial arts and gymnastics which she has been participating in since she was young.

Rebecca Warns, Emergency Veterinarian

Dr. Rebecca Warns

Education: University of Pennsylvania

Dr. Becca Warns grew up in Charlottesville, VA. She graduated from Boston College with a Bachelor of Science in Biology. She later moved to Philadelphia to attend veterinary school at the University of Pennsylvania. Afterwards, she completed a small animal medicine, surgery, and emergency internship in Brooklyn. Her professional interests include internal medicine and cardiology. Dr. Warns lives in Queens with her husband (Tom), their two cats (Wilma and Brooklyn), a corn snake (Slinky), and dozens of fish. In her free time she loves running, reading, spending time with family and friends, and exploring New York.

West Hills Animal Emergency and Critical Care Center
West Hills Animal Emergency and Critical Care Center
West Hills Animal Emergency and Critical Care Center
West Hills Animal Emergency and Critical Care Center

Pet emergencies for which you should immediately seek medical care:

Symptoms include:

  • Difficulty breading
  • Bleeding that does not stop from any part of the body
  • Bloated, distended, swollen or painful abdomen
  • Major trauma - Falls, hit-by-cars, large wounds, broken bones