Alexandra Williams
NPI 1922704683 · Registered Dietitian · Palo Alto, CA
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexandra Williams is a Registered Dietitian provider in Palo Alto, CA (NPI 1922704683).
Provider details
- NPI number
- 1922704683
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Dietary & Nutritional Service Providers
- Registered Dietitian133V00000X
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
- 2023-02-03
- Last updated
- 2023-04-27
- Certified
- 2023-04-27
Frequently asked questions
- What is Alexandra Williams's NPI number?
- Alexandra Williams's National Provider Identifier (NPI) is 1922704683, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexandra Williams's specialty?
- Alexandra Williams is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Alexandra Williams located?
- Alexandra Williams's practice location on file with NPPES is 725 Welch Rd, Palo Alto, CA 94304-1601.
- What is Alexandra Williams's phone number?
- The practice phone number listed in the NPPES registry for Alexandra Williams is (650) 497-8000.
- Does Alexandra Williams accept Medicare?
- Alexandra Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexandra Williams's NPI active?
- Yes — Alexandra Williams's NPI (1922704683) is active in the NPPES registry as of the last update on 2023-04-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.