Advanced Mobile Diagnostics for Your Practice

MapleTree Diagnostics provides veterinarians with mobile endoscopy, ultrasound and internal medicine consulting services throughout central Ontario and the GTA.

We are passionate about improving the outcomes for your patients and clients by enhancing accessibility and removing barriers to advanced diagnostics and internal medicine.

Booking an appointment

Once you have requested an appointment using the Request Appointment feature, we will contact you directly to schedule a time that works for you and your client for us to travel to your clinic to perform ultrasound and endoscopy procedures. Please note that we can only accept appointment requests from veterinary clinics or veterinary staff.

Request Appointment

About Us

MapleTree was founded by Dr. Christopher Greenwood, a residency-trained internal medicine specialist. As an internist, Dr. Greenwood is passionate about minimally invasive diagnostics and providing empathetic care to people and animals. In fact, Dr. Greenwood was voted by his graduating Ontario Veterinary College classmates as the vet they would choose for their own pets. He considers this his highest honour.

Dr. Greenwood has lectured to veterinary students, presented at the ACVIM Forum, managed referrals as a staff internist, and performed research in hematology and gastroenterology. He is currently working towards board certification.

Learn more
Man holding the paw of a large dog.

Veterinary Diagnostic Services

MapleTree offers a range of minimally invasive diagnostic and internal medicine services.

Learn more


We primarily provide services in the east Greater Toronto Area and central Ontario, including:

  • Durham Region: including Oshawa, Whitby, Ajax, Pickering, Clarington, and Port Perry
  • York Region: including Georgina, Aurora, East Gwillimbury, Markham, Whitchurch-Stouffville, King, Vaughan, Newmarket and Richmond Hill, Scarborough
  • Central Ontario: including Peterborough, Kawartha Lakes, Hastings, Belleville, Trenton, Cobourg, Napanee

If you are in the Peel Region, Waterloo Region, Hamilton, Niagara, or other parts of Ontario, please contact us to discuss your needs. We also work closely with other diagnostic specialists in these regions to help meet your needs.

Contact Us