Olde Towne Animal Hospital

Is this your veterinarian?

380 County Rd 39A
Southampton, NY 11968

Driving Directions

(631) 283-0611

Email: oldetowneah@optonline.net

  • Hours:
  • Mon-Fri: 8:00am - 6:00pm
  • Sat: 8:00am - 5:00pm
  • Sun: 10:00am - 5:00pm

At Olde Towne Animal Hospital, we understand that your pets are an important part of your life. Our highly trained staff will treat you and your pets with professionalism and courtesy while providing you with the very best veterinary care available. Our full-service practice offers a variety of services intended to promote your pet’s overall health and longevity. It is our privilege to care for you and your pets, so call today to learn about our services or schedule an appointment.

Olde Towne Animal Hospital Services

  • Acupuncture
  • Anesthesia
  • Bathing
  • Behavioral Medicine
  • Birds (Avian Medicine)
  • Blood Transfusions
  • Boarding
  • Dental Care
  • Emergency and Critical Care
  • Endoscopy
  • Fully Stocked Pharmacy
  • Grooming
  • Hospice and Euthanasia Services
  • House Calls
  • Laboratory
  • Microchipping
  • Nutritional Counseling
  • Pain Management
  • Parasite Prevention and Control
  • Puppy and Kitten Care
  • Rabbits and Small Mammals
  • Radiology (X-Rays)
  • Reptiles
  • Senior Care
  • Surgery
  • Ultrasound
  • Vaccinations
  • Wellness Exams

Olde Towne Animal Hospital Staff Profiles

Marcy MacMIllan, VMD

Dr. Marcy MacMillan is originally from northern New Jersey.  She received a BA from Bucknell University where she majored in Economics and minored in Biology.  After graduating, she went on to veterinary school at the University of Pennsylvania.  Dr. MacMillan first worked at Olde Towne as a veterinary assistant during her summer breaks from veterinary school.  Before returning to Olde Towne, she worked at a small animal hospital outside of Washington, DC.  Her professional interests include ophthalmology and surgery.  Marcy is married to Brian Armusewicz and has a daughter Avery.  In her free time she enjoys squash, gardening, going out to eat, and going to the beach with her dog Bay. Show More

Dawn D. Stelling, DVM

Dr. Dawn Stelling received her DVM degree from Cornell University in 1996, her BS in animal science from Cornell University in 1992.  After obtaining her DVM degree, Dr. Stelling completed a 13 month internship in small animal medicine and surgery at South Shore Animal Hospital in Massachusetts.  She returned to Olde Towne in 1997 and has special interests in emergency medicine and critical care.  Dr. Stelling was born and raised in Southampton.  She enjoys spinning, sailing, beaching, reading and time with her children Shawn, Ryan and Summer.  Show More

Claude D. Grosjean, DVM, CVA

Dr. Claude Grosjean received his DVM degree from Cornell University in 1985, his BS from St. John's University in 1981.  He was recently Certified in Veterinary Acupuncture from the Chi Institute.  Prior to joining Olde Towne in 1993, he worked with both large and small animals here on the South Fork.  He has interests in Acupuncture, Tui-na massage and Traditional Chinese Medicine, avian, reptile and aquatic medicine.  His hobbies include scuba diving, windsurfing, fishing, guitar, reading and photography. Show More