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URMC Response to CrowdStrike Software Issue

Saturday, July 20: All UR Medicine facilities are open as scheduled and providing safe patient care, with a goal to return all clinical services to full efficiency by early next week.

Patients: click here for more information. Faculty/Staff: click here for information.

Canandaigua Marilyn Sands Outpatient Clinic

Part of FF Thompson Hospital
Marilyn Sands Outpatient Clinic Entrance


395 West Street
Door 20B
Canandaigua, NY 14424

Get Directions



(585) 320-1039

Free parking available.


Monday – Friday 8 a.m.−4:30 p.m.

Office Visits are on Tuesdays and Wednesdays.

Procedures in the Ambulatory Procedures Center are on Mondays, Thursdays and Fridays.

Phones are open Monday – Friday, 8am – 4:30pm.


UR Medicine Gastroenterology offers the most advanced treatments and services provided by the most highly trained and experienced providers in the Rochester NY region.


  • Colon Cancer Screening (Colonoscopy)
  • Proctosigmoidoscopy
  • Sigmoidoscopy
  • Upper Gastrointestinal Endoscopy

Conditions Treated

Additional Information

If you have any of the following symptoms, you may benefit from the specialized care of a gastroenterologist for treatment:

  • Persistent nausea and vomiting
  • Abdominal pain
  • Rectal bleeding
  • Change in bowel habits
  • Ongoing diarrhea
  • Constipation
  • Swallowing difficulty (dysphagia)
  • Heartburn


Appointment Information

Arriving prepared for your appointment or procedure is very important. If you have any questions about advance preparation or are uncertain about which instructions pertain to you, please call our office at (585) 978-8277.