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Dog Mastery Inc
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Meet the breeder
I'm Marc J., the breeder behind Dog Mastery Inc located in Orinda, CA.
Q. & A. with Marc
What are the different breed coat colors in your program?
Our puppies include sable, black, black and red, black and tan, and bi-color. Colors will vary depending on the parent dogs.Where do your breeding dogs live?
They live in my home and a kennel on my property.
Getting a puppy from Marc
Marc 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
Connect with Marc to learn more details about pricing.
Contract & health guarantee
Marc 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 Marc 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 Marc 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 fly or drive to pick up your puppy from Marc.
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Puppy pick-up locations
Marc will coordinate all the details with you.
Meet in Orinda, CA
5662 miles away · Marc's location
More about Marc
Club memberships
Marc is a member of MidBay Working Dog Club, German Shepherd Dog Club of America, and United Schutzhund Clubs of America.
Marc has been a member of Good Dog for 4 months
Marc was screened for responsible practices and has been a member since 2025.
Marc is a trusted Good Dog breeder
Dog Mastery Inc 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
Excellent level
Dog Mastery Inc 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 German Shepherds.
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.
Temperament Test
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, Degenerative Myelopathy (DM; SOD1A)
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).
