Nissa Harrington, RD/LD
NPI 1891247466 · Registered Dietitian · Ada, OK
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nissa Harrington, RD/LD is a Registered Dietitian provider in Ada, OK (NPI 1891247466).
Provider details
- NPI number
- 1891247466
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RD/LD
- Sex
- Female
- Sole proprietor
- No
- License
- 1633 (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
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
Mailing address
Registry dates
- Enumerated
- 2016-10-31
- Last updated
- 2016-10-31
Frequently asked questions
- What is Nissa Harrington's NPI number?
- Nissa Harrington's National Provider Identifier (NPI) is 1891247466, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nissa Harrington's specialty?
- Nissa Harrington is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Nissa Harrington located?
- Nissa Harrington's practice location on file with NPPES is 1921 Stonecipher Blvd, Ada, OK 74820.
- What is Nissa Harrington's phone number?
- The practice phone number listed in the NPPES registry for Nissa Harrington is (580) 421-4570.
- Does Nissa Harrington accept Medicare?
- Nissa Harrington is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nissa Harrington's NPI active?
- Yes — Nissa Harrington's NPI (1891247466) is active in the NPPES registry as of the last update on 2016-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.