Mark Stone
NPI 1457911828 · Certified Respiratory Therapist · Santa Clarita, CA
Mark Stone is a Certified Respiratory Therapist provider in Santa Clarita, CA (NPI 1457911828).
Provider details
- NPI number
- 1457911828
- Entity type
- Individual
- Primary specialty
- Certified Respiratory TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-06-18
- Last updated
- 2019-06-18
Frequently asked questions
- What is Mark Stone's NPI number?
- Mark Stone's National Provider Identifier (NPI) is 1457911828, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Stone's specialty?
- Mark Stone is listed in the NPPES registry with a primary specialty of Certified Respiratory Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Mark Stone located?
- Mark Stone's practice location on file with NPPES is 19873 Emmett Rd, Santa Clarita, CA 91351-4801.
- What is Mark Stone's phone number?
- The practice phone number listed in the NPPES registry for Mark Stone is (661) 251-9917.
- Is Mark Stone's NPI active?
- Yes — Mark Stone's NPI (1457911828) is active in the NPPES registry as of the last update on 2019-06-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.