Mark Walker
NPI 1558630103 · Rehabilitation Practitioner · Bellflower, CA
Mark Walker is a Rehabilitation Practitioner provider in Bellflower, CA (NPI 1558630103).
Provider details
- NPI number
- 1558630103
- Entity type
- Individual
- Primary specialty
- Rehabilitation PractitionerRespiratory, 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
14 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
- 2011-12-27
- Last updated
- 2011-12-27
Frequently asked questions
- What is Mark Walker's NPI number?
- Mark Walker's National Provider Identifier (NPI) is 1558630103, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Walker's specialty?
- Mark Walker is listed in the NPPES registry with a primary specialty of Rehabilitation Practitioner (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Mark Walker located?
- Mark Walker's practice location on file with NPPES is 8545 Park St, Bellflower, CA 90706-8806.
- What is Mark Walker's phone number?
- The practice phone number listed in the NPPES registry for Mark Walker is (310) 930-1224.
- Is Mark Walker's NPI active?
- Yes — Mark Walker's NPI (1558630103) is active in the NPPES registry as of the last update on 2011-12-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.