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Capitol Breathe Free Sinus & Allergy Centers

Otolaryngology Physician in Washington, DC · enumerated 2018 · authorized official Karen Swanson, Biller.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1801374228

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Registry record

Entity type Organization (Type 2)
Legal business name Capitol Breathe Free Sinus & Allergy Centers
Practice address 2021 K St Nw Ste 600, Washington, DC, 20006
Fax (833) 200-5844
Enumeration date Jul 30, 2018
Last updated in NPPES May 8, 2019

Taxonomy & classification

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Karen Swanson
Title Biller

Other identifiers

Identifier Type State Issuer
025957016 Medicaid DC -
1518008580 Medicaid VA -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Capitol Breathe Free Sinus & Allergy Centers?
The NPI for Capitol Breathe Free Sinus & Allergy Centers is 1801374228, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Capitol Breathe Free Sinus & Allergy Centers?
NPPES lists Karen Swanson (Biller) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-05-08.