SIERRA MACKENZIE OSMERS
NPI 1780464958
Counselor - Mental Health in Seattle, WA

Q: What is Sierra Osmers's NPI number?

The NPI number for Sierra Osmers is 1780464958. It was assigned to this individual provider in the NPPES registry on October 4, 2023.

Q: What is Sierra Osmers's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Q: When was this NPI record last updated?

The NPPES record for Sierra Osmers was last updated on December 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since October 04, 2023

2148 WAVERLY PL N APT 2C, SEATTLE, WA 98109(360) 951-3078 Get Directions Write a Review

NPPES record last updated: December 3, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 3, 2025, Oct 4, 2023 (2 updates tracked since 2023).

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About Sierra Mackenzie Osmers NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SIERRA MACKENZIE OSMERS (NPI 1780464958) is an individual mental health provider in Seattle, Washington, licensed in Washington (LF70008201) and active in the NPI registry since October 2023.

NPPES Registry Identity

NPI1780464958

Entity TypeIndividualFemale

Primary Taxonomy101YM0800X

Provider Legal NameSIERRA MACKENZIE OSMERS

Location Address2148 WAVERLY PL N APT 2CSeattle, WA 98109-2473

Mailing Address2148 Waverly Pl N Apt 2cSeattle, WA 98109-2473 · (360) 951-3078

Phone(360) 951-3078

Sole ProprietorNo

Enumeration DateOctober 4, 2023

Last NPPES UpdateDecember 3, 20252 updates tracked since enumeration

NPPES CertifiedDecember 3, 2025

✔ NPI 1780464958 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers

Taxonomy Code101YM0800X

License✔ Licensed in WA · LF70008201

2148 WAVERLY PL N APT 2C, Seattle, WA 98109

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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 Sierra Osmers's NPI number?

The NPI number for Sierra Osmers is 1780464958. It was assigned to this individual provider in the NPPES registry on October 4, 2023.

Where is Sierra Osmers located?

Sierra Osmers practices at 2148 Waverly Pl N Apt 2C, Seattle, WA 98109. The listed phone number is (360) 951-3078.

What is Sierra Osmers's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Sierra Osmers was last updated on December 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.