DR. NATALIE SIERRA ALLEN OTD
NPI 1598281933
Occupational Therapist in Mountlake Terrace, WA
About Dr. Natalie Sierra Allen Otd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NATALIE SIERRA ALLEN OTD (NPI 1598281933) is an individual occupational therapist in Mountlake Terrace, Washington, licensed in Washington (60771804) and active in the NPI registry since August 2017. She is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses
Group Practice 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
Dr. Natalie Sierra Allen Otd 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 Reassignments
2Medicare enrollment records show Natalie Allen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mountlake Terrace, WA 98043
- Reassigned Medicare billing, Washington enrollment
- 2 clinicians in this Medicare group
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 267 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.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MOUNTLAKE TERRACE, WA 98043
MOUNTLAKE TERRACE, WA 98043
MOUNTLAKE TERRACE, WA 98043
MOUNTLAKE TERRACE, WA 98043
MOUNTLAKE TERRACE, WA 98043
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 Natalie Allen's NPI number?
The NPI number for Natalie Allen is 1598281933. It was assigned to this individual provider in the NPPES registry on August 17, 2017.
Where is Natalie Allen located?
Natalie Allen practices at 6912 220th St SW Ste 205, Mountlake Terrace, WA 98043. The listed phone number is (425) 712-1987.
What is Natalie Allen's specialty?
The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.
Is Natalie Allen enrolled in Medicare?
Yes. Natalie Allen 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 organizations bill Medicare for Natalie Allen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Natalie Allen reassigns Medicare benefits to 2 organizations: Pacific Sports Rehab, PLLC (Mountlake Terrace, WA) and Harborview Medical Center (Seattle, WA). Each 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 Natalie Allen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Natalie Allen accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Natalie Allen 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 Natalie Allen was last updated on April 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.