IndividualActive
Sarah Walker, RDN, LD
NPI 1821521741 · Registered Dietitian · Orange, CA
Sarah Walker, RDN, LD is a Registered Dietitian provider in Orange, CA (NPI 1821521741).
Provider details
- NPI number
- 1821521741
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RDN, LD
- Sex
- Female
- Sole proprietor
- No
- License
- LD-D-10266691 (OR)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
Established profile(70/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
101 the City Dr S Rm 1822
Orange, CA 92868-3201
Phone: (714) 456-7584
Street-level locationGet directions
Mailing address
16379 E Preserve Loop Unit 2171
Chino, CA 91708-9409
Registry dates
- Enumerated
- 2017-04-07
- Last updated
- 2026-02-27
- Certified
- 2026-02-27
Frequently asked questions
- What is Sarah Walker's NPI number?
- Sarah Walker's National Provider Identifier (NPI) is 1821521741, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Walker's specialty?
- Sarah Walker is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Sarah Walker located?
- Sarah Walker's practice location on file with NPPES is 101 the City Dr S Rm 1822, Orange, CA 92868-3201.
- What is Sarah Walker's phone number?
- The practice phone number listed in the NPPES registry for Sarah Walker is (714) 456-7584.
- Is Sarah Walker's NPI active?
- Yes — Sarah Walker's NPI (1821521741) is active in the NPPES registry as of the last update on 2026-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.