TIFFANY VASSALO M.S., CCC-SLP
NPI 1578041554
Speech-Language Pathologist in Seattle, WA

Q: What is Tiffany Vassalo's NPI number?

The NPI number for Tiffany Vassalo is 1578041554. It was assigned to this individual provider in the NPPES registry on August 1, 2018. The provider is also known as Tiffany Stevens.

Q: What is Tiffany Vassalo's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

Q: When was this NPI record last updated?

The NPPES record for Tiffany Vassalo was last updated on February 20, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.

Active since August 01, 2018

2300 W BERTONA ST, SEATTLE, WA 98199(978) 444-0321 Get Directions Write a Review

NPPES record last updated: February 20, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 20, 2023, Aug 1, 2018 (2 updates tracked since 2018).

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About Tiffany Vassalo M.s., Ccc-slp NPPES

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

TIFFANY VASSALO M.S., CCC-SLP (NPI 1578041554) is an individual speech-language pathologist provider in Seattle, Washington, licensed in Washington (LL61321905) and active in the NPI registry since August 2018. She maintains a secondary practice location in Seattle.

NPPES Registry Identity

NPI1578041554

Entity TypeIndividualFemale

Primary Taxonomy235Z00000X

Provider Legal NameTIFFANY VASSALOCredential: M.S., CCC-SLP

Location Address2300 W BERTONA STSeattle, WA 98199-2326

Mailing Address2300 W Bertona StSeattle, WA 98199-2326 · (978) 444-0321

Phone(978) 444-0321

Sole ProprietorNo

Enumeration DateAugust 1, 2018

Last NPPES UpdateFebruary 20, 20232 updates tracked since enumeration

NPPES CertifiedFebruary 20, 2023

✔ NPI 1578041554 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers

Taxonomy Code235Z00000X

Licenses✔ Licensed in WA · LL61321905✔ Licensed in CA · SP28481

Definition

The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.

2300 W BERTONA ST, Seattle, WA 98199

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Other Names 1

Former Name (1)Tiffany Stevens

Secondary Practice Location 1

Location 111 W Aloha StSeattle, WA 98119-3743 · Phone (206) 284-7330

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Tiffany Vassalo M.s., Ccc-slp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Tiffany Vassalo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Vassalo Speech And Language LLC

Same address

Speech-Language Pathologist

2300 W BERTONA ST
Seattle, WA 98199

Reassigned Medicare billing, California and Washington enrollments

NPI 1003547316 (978) 444-0321

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

VASSALO SPEECH AND LANGUAGE LLC

Speech-Language Pathologist

2300 W BERTONA ST
SEATTLE, WA 98199

King County (978) 444-0321

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 Tiffany Vassalo's NPI number?

The NPI number for Tiffany Vassalo is 1578041554. It was assigned to this individual provider in the NPPES registry on August 1, 2018. The provider is also known as Tiffany Stevens.

Where is Tiffany Vassalo located?

Tiffany Vassalo practices at 2300 W Bertona St, Seattle, WA 98199. The listed phone number is (978) 444-0321.

What is Tiffany Vassalo's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

Is Tiffany Vassalo enrolled in Medicare?

Yes. Tiffany Vassalo is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Tiffany Vassalo's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tiffany Vassalo reassigns Medicare benefits to Vassalo Speech And Language LLC (Seattle, 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 Tiffany Vassalo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Tiffany Vassalo was last updated on February 20, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.