Grace Williams, MS, RD
NPI 1285257121 · Registered Dietitian · Oklahoma City, OK
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Williams, MS, RD is a Registered Dietitian provider in Oklahoma City, OK (NPI 1285257121).
Provider details
- NPI number
- 1285257121
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- MS, RD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 86101515 (OK)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
- 2020-05-27
- Last updated
- 2020-05-27
- Certified
- 2020-05-27
Frequently asked questions
- What is Grace Williams's NPI number?
- Grace Williams's National Provider Identifier (NPI) is 1285257121, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Williams's specialty?
- Grace Williams is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Grace Williams located?
- Grace Williams's practice location on file with NPPES is 6804 Nw Grand Blvd, Oklahoma City, OK 73116-5415.
- What is Grace Williams's phone number?
- The practice phone number listed in the NPPES registry for Grace Williams is (405) 842-4948.
- Does Grace Williams accept Medicare?
- Grace Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grace Williams's NPI active?
- Yes — Grace Williams's NPI (1285257121) is active in the NPPES registry as of the last update on 2020-05-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.