Mark Jason, M.D
NPI 1629179536 · Specialist · Laguna Hills, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Jason, M.D is a Specialist provider in Laguna Hills, CA (NPI 1629179536).
Provider details
- NPI number
- 1629179536
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- G37528 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% 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
- 2006-09-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Jason's NPI number?
- Mark Jason's National Provider Identifier (NPI) is 1629179536, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Jason's specialty?
- Mark Jason is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Mark Jason located?
- Mark Jason's practice location on file with NPPES is 25411 Cabot Rd, Laguna Hills, CA 92653-5520.
- What is Mark Jason's phone number?
- The practice phone number listed in the NPPES registry for Mark Jason is (949) 364-5119.
- Does Mark Jason accept Medicare?
- Mark Jason is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Jason's NPI active?
- Yes — Mark Jason's NPI (1629179536) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.