Mastini Sierra Pyrenean Mastiffs
Meet the breeder
I'm Denise C., the breeder behind Mastini Sierra Pyrenean Mastiffs located in Sonora, CA. Our mission is to raise healthy, happy, adorable puppies and connect loving families with their new best friend! Our puppies become integral members of our family. They’re a daily part of everything we do until they’re ready to join their forever families.
Q. & A. with Denise
Where do your breeding dogs live?
They live in my home.
Getting a puppy from Denise
Denise has been certified by Good Dog’s screening team for responsible and trusted breeding practices. When you’re ready to reach out, feel free to ask any questions about the breed, their program, or specific puppies.
Together, you’ll choose the puppy that’s right for you, stay in touch with regular updates, and plan how to bring your new puppy home.
Price
Puppy prices include a $500 non-refundable deposit and between $1,500 - $3,000 final payment, before taxes & fees.
Pay over time with Klarna.
“Price includes AKC registration, worming, vaccines, microchip, Embark DNA and health testing.”
Contract & health guarantee
Denise may provide a written contract or health guarantee when you purchase a puppy. This helps protect both you and your breeder, ensuring that you both have a clear understanding of the terms of your puppy purchase. If Denise offers a contract or guarantee, the details will be personalized by them. If you have any questions or want to know more, don’t hesitate to reach out to Denise directly.
Always communicate and pay on Good Dog.Learn more
What’s included
From Good Dog
- Lifetime support from Good Dog’s Care Team
- 10% lifetime discount on Figo pet insurance
- Puppy Training Program & private community
Puppy health practices
- Vet check
- First round of shots and deworming
Location & pick-up
You can drive or fly to pick up your puppy from Denise.
Breeder’s location
Meet in Sonora, CA
2298 miles away
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Other pick-up locations
Flexible meeting point
Denise can meet at a location that works for both of you
More about Denise
Denise has been a member of Good Dog for less than a month
Denise was screened for responsible practices and has been a member since 2025.
Denise is a trusted Good Dog breeder
Mastini Sierra Pyrenean Mastiffs meets or exceeds our community standards in these areas:
- Responsible breeding practices
- Health of breeding dogs and puppies
- Puppy environment and enrichment
- Buyer education and policies
Parent health testing
Breeder-Reported Testing
Great level
Mastini Sierra Pyrenean Mastiffs reports to performing the health tests below on their breeding dogs. Ask your breeder about the tests performed on the parents of your litter. Learn more about health testing for Pyrenean Mastiffs.
Hip Dysplasia
Hip testing reduces the chance of passing down hip dysplasia, which is primarily found in large breed dogs and can cause hip pain and the eventual loss of the function of the hip joint.
Elbow Dysplasia Finals (OFA, BVA, SV, FCI)
Elbow testing reduces the chance of passing down elbow dysplasia, which is primarily found in large breed dogs and can cause arthritis in the elbow joint and front leg lameness.
Patellar Luxation
Knee testing reduces the chance of passing down Patellar Luxation, which results in the kneecap becoming displaced or dislocated and can cause mild to severe joint pain.
Vet Wellness Exam
A breeder may perform additional tests on their dogs that do not fall into these general categories. These tests may be more uncommon or very specific to a particular breed.
DNA Disease Panel
Genetic testing reduces the chance of passing down a wide variety of hereditary diseases of differing prevalence and severity such as Progressive Retinal Atrophy (an eye disease) and Von Willebrand's Disease (a blood disease).
