Near You · Ontario

Veterinarians Near You in Ontario, CA

Find veterinarians close to you in Ontario. All results are sorted by proximity and rated by real local customers.

As of June 2026, RatingsNearMe ranks 18 veterinarians in Ontario, CA by the RNM Score — a 0–100 rating built from Google ratings, review volume, sentiment, and profile completeness. The top-ranked is Blue Cross Animal Hospital with a 4.7-star rating from 607 Google reviews and an RNM Score of 83/100. Also in the top tier: Ontario Veterinary Hospital and Golden Oaks Veterinary Hospital. The average rating across all listed veterinarians in Ontario is 4.3 stars from 357 reviews per business on average.

Vet costs in Ontario: wellness exam $50–$100; vaccinations $15–$30 each; surgery $500–$5,000+ depending on procedure.

Rankings updated June 10, 2026 · RNM Score = ratings (35%), review volume (30%), sentiment (20%), completeness (10%), availability (5%) · Not paid placement.

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Local Market Snapshot

18

Businesses listed

4.3★

Avg rating

357

Avg reviews

Jun 10, 2026

Last updated

Top Rated Veterinarians

4.7(607 reviews)

Rated 4.7 stars from over 600 Google reviews, consistently trusted by local pet owners.

10593 S Mills Ave, Montclair, CA 91763, USA
4.6(712 reviews)

Trusted by hundreds of local pet owners, with a strong 4.6-star rating.

121 East E Street, Ontario, CA 91764, USA
4.8(469 reviews)

Exceptional 4.8-star rating from nearly 500 reviews.

9155 Archibald Ave Suite J, Rancho Cucamonga, CA 91730, USA

Veterinarians Rankings in Ontario, CA

#BusinessRatingReviews
#1Blue Cross Animal Hospital10593 S Mills Ave, Montclair, CA 91763, USA4.7607
#2Ontario Veterinary Hospital121 East E Street, Ontario, CA 91764, USA4.6712
#3Golden Oaks Veterinary Hospital9155 Archibald Ave Suite J, Rancho Cucamonga, CA 91730, USA4.8469
#4Inland Valley Veterinary Specialists & Emergency Center10 W 7th St, Upland, CA 91786, USA3.9653
#5Home Vet House Call Services9037 Arrow Route #150, Rancho Cucamonga, CA 91730, USA4.950
#6Oasis Pet Hospital9605 Foothill Blvd, Rancho Cucamonga, CA 91730, USA5.038
#7Upland Animal Hospital8763 Grove Ave, Rancho Cucamonga, CA 91730, USA4.6532
#8VCA California Veterinary Specialists-Ontario2409 S Vineyard Ave Suite O, Ontario, CA 91761, USA3.5479
#9MarQueen Pet Emergency & Specialty1582 N Benson Ave, Upland, CA 91786, USA4.3366
#10Alta Rancho Pet Hospital8677 19th St, Rancho Cucamonga, CA 91701, USA4.6258

Ranked by verified ratings & review volume · Data from Google Business listings · Updated June 2026

All Veterinarians in Ontario

4
3.9· 653 reviews

Mixed 3.9-star rating from over 650 Google reviews.

10 W 7th St, Upland, CA 91786, USA

5
4.9· 50 reviews

Rated 4.9 stars from over 50 Google reviews for exceptional veterinary care.

9037 Arrow Route #150, Rancho Cucamonga, CA 91730, USA

6
5.0· 38 reviews

Rated 5.0 stars from 38 reviews, offering exceptional pet care in Ontario.

9605 Foothill Blvd, Rancho Cucamonga, CA 91730, USA

7
4.6· 532 reviews

Trusted by hundreds of local pet owners with a strong 4.6-star rating.

8763 Grove Ave, Rancho Cucamonga, CA 91730, USA

8
3.5· 479 reviews

Rated 3.5 stars from nearly 500 Google reviews with mixed customer feedback.

2409 S Vineyard Ave Suite O, Ontario, CA 91761, USA

9
4.3· 366 reviews

Trusted by hundreds of pet owners, this Ontario veterinarian holds a solid 4.3-star rating.

1582 N Benson Ave, Upland, CA 91786, USA

10
4.6· 258 reviews

Trusted by hundreds of pet owners, this Ontario veterinarian holds a strong 4.6-star average rating.

8677 19th St, Rancho Cucamonga, CA 91701, USA

11
4.8· 16 reviews

Rated 4.8 stars from 16 Google reviews, this Ontario veterinarian is highly praised by clients.

14097 Limonite Ave, Eastvale, CA 92880, USA

12
1.0· 1 reviews

Mixed reviews with a low 1.0-star rating from just one Google review.

1620 Fremont Ct, Ontario, CA 91761, USA

13
4.3· 1,086 reviews

Trusted by over 1,000 clients, with a strong 4.3-star average rating.

750 N Archibald Ave, Ontario, CA 91764, USA

14
4.6· 334 reviews

Highly rated by hundreds of local pet owners with a strong 4.6-star average.

1155 N Mountain Ave, Ontario, CA 91762, USA

15
4.7· 249 reviews

Trusted by hundreds of pet owners, this Ontario vet holds a strong 4.7-star rating.

2417 S Grove Ave, Ontario, CA 91761, USA

16
4.6· 246 reviews

Trusted by locals, this Ontario vet holds a strong 4.6-star rating from 246 reviews.

2521 S Euclid Ave, Ontario, CA 91761, USA

17
4.7· 168 reviews

Rated 4.7 stars from 168 Google reviews, this Ontario veterinarian is highly trusted.

3450 Ontario Ranch Rd Suite #6, Ontario, CA 91761, USA

18
4.0· 161 reviews

Trusted by hundreds of local pet owners, this clinic maintains a solid 4.0-star rating.

3085 S Archibald Ave # D, Ontario, CA 91761, USA

Data from Google Business listings
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Veterinarians in Ontario, CA — Compared

#BusinessRNM ScoreRatingReviews
1Blue Cross Animal Hospital83/1004.7 ★607
2Ontario Veterinary Hospital82/1004.6 ★712
3Golden Oaks Veterinary Hospital85/1004.8 ★469
4Inland Valley Veterinary Specialists & Emergency Center70/1003.9 ★653
5Home Vet House Call Services78/1004.9 ★50
6Oasis Pet Hospital78/1005.0 ★38
7Upland Animal Hospital82/1004.6 ★532
8VCA California Veterinary Specialists-Ontario63/1003.5 ★479
9MarQueen Pet Emergency & Specialty76/1004.3 ★366
10Alta Rancho Pet Hospital82/1004.6 ★258

Ranked by RatingsNearMe Score · ratings (35%), review volume (30%), sentiment (20%), completeness (10%), availability (5%) · June 2026

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Frequently Asked Questions — Veterinarians in Ontario

What is the difference between a general practice vet and a specialist in Ontario?

General practice vets handle wellness exams, vaccinations, routine illness, dental cleanings, and many standard surgeries. Veterinary specialists (board-certified in cardiology, oncology, internal medicine, surgery, etc.) handle complex or serious cases — usually by referral from your GP vet. If your pet needs advanced diagnostics or treatment, ask your regular vet for a referral to a specialist in Ontario.

How much does a vet visit cost in Ontario?

Routine wellness exams: $50–$100. Vaccinations: $15–$30 each. Sick visits: $75–$150. Emergency visits: $100–$200+ just for triage, plus treatment costs. Surgery varies widely: $500–$1,500 for common procedures, $3,000–$10,000+ for complex surgery. Pet insurance ($25–$70/month) can significantly offset unexpected costs.

How do I find a vet in Ontario who accepts payment plans or CareCredit?

Call and ask directly — many veterinary offices in Ontario accept CareCredit, Scratchpay, or offer in-house payment plans. Be upfront about your situation when you call. VetFund and RedRover Relief also provide emergency financial assistance for pet care when costs are catastrophic.

When does my pet need an emergency vet instead of a regular vet in Ontario?

Go to an emergency vet immediately for: difficulty breathing, severe or uncontrolled bleeding, suspected poisoning, inability to walk or stand, suspected broken bones, seizures lasting more than 2 minutes, eye injuries, extreme lethargy or collapse, or straining to urinate without producing urine (especially in male cats — this is life-threatening). Save the nearest 24-hour emergency vet in Ontario in your phone before you need it.

How are the veterinarians on this page ranked?

Rankings use a transparent algorithm: star rating (35%), review volume (30%), customer sentiment (20%), profile completeness (10%), and availability (5%). Featured Partner listings have paid for enhanced visibility but must still earn their position through real customer reviews — sponsored listings are clearly labeled.

Veterinarians in Nearby Cities

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How Rankings Work on This Page

Every veterinarians on RatingsNearMe is scored transparently: star rating (35%), review volume (30%), customer sentiment (20%), profile completeness (10%), and availability (5%). Businesses labeled exclusive or premium are Featured Partners — they have paid for enhanced visibility but must still rank through real customer reviews. We cap sponsored boosts so bad businesses can never buy the top spot.

Editorial notice: Ratings are based on publicly available data from Google Business listings. Consumers should independently verify licensing, insurance, and credentials before hiring any service provider. Last updated: June 10, 2026.

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About This Veterinarians Directory — Ontario, CA

This page lists and ranks 18 veterinarians serving Ontario, CA as of June 2026. The average verified rating across all listings is 4.3 stars, with an average of 357 customer reviews per business. The top-ranked veterinarians in Ontario by our algorithm is Blue Cross Animal Hospital (4.7 stars, 607 reviews). Vet costs in Ontario: wellness exam $50–$100; vaccinations $15–$30 each; surgery $500–$5,000+ depending on procedure.

RatingsNearMe uses a transparent, data-driven ranking algorithm that weighs star rating (35%), review volume (30%), customer sentiment analysis (20%), profile completeness (10%), and availability signals (5%). Rankings are not for sale — Featured Partner businesses pay for enhanced visibility but must earn their position through real customer reviews. Data sourced from Google Business listings and updated regularly.

How to choose a veterinarians in Ontario: Look for businesses with 4.5+ stars, 50+ reviews, proper licensing and insurance, and transparent pricing. Get at least 3 quotes for any project over $500. Verify credentials with the CA licensing board before hiring.

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