Oregon Veterinary Diagnostic Laboratory
Telephone:  541-737-3261
Fax:  541-737-6817
134 Magruder Hall
Corvallis OR 97331

Regular Business Office hours

8:00 a.m. to 12:00 noon and 1:00 pm to 5:00 pm Monday through Friday. Please call during regular office hours for laboratory results.

Receiving hours

8:00 a.m. to 5:00 p.m. Monday through Friday

Emergency necropsy services are available after hours. Call 541-737-3261 and follow the instructions to be connected with the pathologist on emergency duty.

2021 Holiday Closures

  • New Year's Day - Friday, January 1st, 2021
  • Martin Luther King Jr. Day - Monday, January 18th, 2021
  • Memorial Day - Monday, May 31st, 2021 
  • Juneteenth - Observed Friday, June 18th, 2021
  • Independence Day - Observed Monday, July 5th, 2021   
  • Labor Day - Monday, September 6th, 2021
  • Veteran's Day Observed - Thursday, November 11th, 2021 
  • Thanksgiving Day - Thursday, November 25th and Friday, November 26th, 2021
  • Christmas Day Observed - Friday, December 24th, 2021


From I-5, take Exit 228 (the Oregon Hwy. 34/Corvallis-Lebanon Hwy. exit). Turn west toward Corvallis. Go 9.5 miles and turn left at the Hwy. 34 bypass, toward Philomath/Ocean Beaches. Turn right onto SW 26th Street and turn left onto SW Western Blvd. Turn right at SW 30th Street.

Magruder is located on the west side of SW 30th St., between Western Blvd. and Washington Way (Reser Stadium is across from Magruder Hall).

From eastbound on Hwy. 20/34 (Philomath Blvd.), turn left on 35th St., right on Western Blvd., left on 30th St.

If you use electronic mapping guides such as Google, MapQuest or a GPS unit, input "SW 30th Street and SW Western Blvd., Corvallis, Oregon."

  • Oregon Veterinary Diagnostic Laboratory

The entrance to the Oregon Veterinary Diagnostic Laboratory is on the south end of Magruder Hall. Please note: Delivery or courier service to the Oregon Veterinary Diagnostic Laboratory MUST be addressed to 134 Magruder Hall.

Interactive map of Oregon State University Campus and surrounding area