Mallory Isley, RD
NPI 1417727231 · Registered Dietitian · Yakima, WA
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mallory Isley, RD is a Registered Dietitian provider in Yakima, WA (NPI 1417727231).
Provider details
- NPI number
- 1417727231
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RD
- Sex
- Female
- Sole proprietor
- No
- License
- 86276043 (WA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 617 Scoon RdSunnyside, WA 98944-1031Phone: (509) 837-8200
Registry dates
- Enumerated
- 2024-01-03
- Last updated
- 2025-11-06
- Certified
- 2025-11-06
Frequently asked questions
- What is Mallory Isley's NPI number?
- Mallory Isley's National Provider Identifier (NPI) is 1417727231, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mallory Isley's specialty?
- Mallory Isley is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Mallory Isley located?
- Mallory Isley's practice location on file with NPPES is 12 S 8th St, Yakima, WA 98901-3020.
- What is Mallory Isley's phone number?
- The practice phone number listed in the NPPES registry for Mallory Isley is (509) 454-4143.
- Does Mallory Isley accept Medicare?
- Mallory Isley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mallory Isley's NPI active?
- Yes — Mallory Isley's NPI (1417727231) is active in the NPPES registry as of the last update on 2025-11-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.