MALLORY MICHELLE ISLEY RD
NPI 1417727231
Dietitian, Registered in Yakima, WA
About Mallory Michelle Isley Rd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MALLORY MICHELLE ISLEY RD (NPI 1417727231) is an individual dietitian, registered in Yakima, Washington, licensed in Washington (86276043) and active in the NPI registry since January 2024. She maintains a secondary practice location in Sunnyside and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mallory Michelle Isley Rd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Mallory Isley reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Yakima, WA 98901
- Reassigned Medicare billing, Washington enrollment
- 252 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98901 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
YAKIMA, WA 98901
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mallory Isley's NPI number?
The NPI number for Mallory Isley is 1417727231. It was assigned to this individual provider in the NPPES registry on January 3, 2024.
Where is Mallory Isley located?
Mallory Isley practices at 12 S 8th St, Yakima, WA 98901. The listed phone number is (509) 454-4143.
What is Mallory Isley's specialty?
The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.
Is Mallory Isley enrolled in Medicare?
Yes. Mallory Isley is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Mallory Isley's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mallory Isley reassigns Medicare benefits to Yakima Valley Farm Workers Clinic (Yakima, WA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mallory Isley's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mallory Isley accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Mallory Isley as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Mallory Isley was last updated on November 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mallory Michelle Isley, RD · NPI 1417727231
Dietitian, Registered provider in Yakima, Washington. Individual provider, active in the CMS NPPES registry since January 3, 2024.
## Identity
- **NPI:** 1417727231 (Entity type: Individual)
- **Enumerated:** January 3, 2024
- **Primary specialty:** Dietitian, Registered · taxonomy 133V00000X
- **State license:** 86276043 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 12 S 8TH ST, Yakima, WA 98901-3020
- **Phone:** (509) 454-4143
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** Yakima Valley Farm Workers Clinic (NPI 1174659890, Yakima, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** November 6, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1417727231) · Data from the CMS NPPES public registry.