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Grand Animal Hospital
1114 S Diamond Bar Blvd, Diamond Bar, CA, 91765
Grand Animal Hospital is a full-service small-animal practice in Diamond Bar, California, open since 2023, seeing patients Sunday through Friday and accepting walk-ins and same-day appointments. It offers wellness and preventive care, diagnostics including digital X-ray, routine and orthopedic surgery, and urgent care during business hours, referring after-hours emergencies to MarQueen Veterinary ER & Specialty in Upland.
Call (909) 323-2860Open until 6:00 PM today · closed Saturday
28 servicesDogs, Cats
After hoursUrgent and emergency care during business hours only. The site states: 'During regular business hours, Grand Animal Hospital provides emergency evaluation, stabilization, hospitalization, and urgent medical treatment for pets.' Outside those hours it refers clients to MarQueen Veterinary ER & Specialty, 1582 N Benson Ave, Upland CA 91786, (909) 303-1700. Urgent care visits carry a higher exam fee and are triaged on arrival rather than scheduled.
HoursOpen until 6:00 PM
Monday8:00 AM – 6:00 PM
Tuesday8:00 AM – 6:00 PM
Wednesday8:00 AM – 6:00 PM
Thursday8:00 AM – 6:00 PM
Friday8:00 AM – 6:00 PM
SaturdayClosed
Sunday8:00 AM – 6:00 PM
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What they do
Ask about a service →28 services, one practice.
Wellness ExamsVaccinationsParasite ControlAllergy And Dermatology CareDental CareMicrochippingNutrition CounselingPuppy And Kitten CareSenior Pet CareHospice Care And EuthanasiaBlood And Laboratory TestingElectrocardiogram (ECG)UltrasoundDigital Radiology (X-Ray)TonometryOphthalmologyOrthopedicsPain Management
Spoken here
EnglishChinese
On site
What’s in the building
01Digital radiography (X-ray)
Who they treat
2 species under this roof
DogsCats
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Claim this page freeCompiled from public records and grandvets.com, August 30, 2026. Not affiliated with PawsRx unless claimed, and details change, so confirm anything that matters when you call. Request removal.