Mary Walker, COTA
NPI 1801285309 · Occupational Therapist · Fullerton, CA
Mary Walker, COTA is a Occupational Therapist provider in Fullerton, CA (NPI 1801285309).
Provider details
- NPI number
- 1801285309
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- COTA
- Sex
- Female
- Sole proprietor
- Yes
- License
- 2208 (CA)
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
11 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
- 2015-01-21
- Last updated
- 2015-01-21
Frequently asked questions
- What is Mary Walker's NPI number?
- Mary Walker's National Provider Identifier (NPI) is 1801285309, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Walker's specialty?
- Mary Walker is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Mary Walker located?
- Mary Walker's practice location on file with NPPES is 1821 E Chapman Ave, Fullerton, CA 92831.
- What is Mary Walker's phone number?
- The practice phone number listed in the NPPES registry for Mary Walker is (714) 879-7301.
- Is Mary Walker's NPI active?
- Yes — Mary Walker's NPI (1801285309) is active in the NPPES registry as of the last update on 2015-01-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.