Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Catherine Bree Johnston

Hospice and Palliative Medicine (Internal Medicine) Physician in Mount Vernon, WA · enumerated 2006.

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

National Provider Identifier

1396779534

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Registry record

Entity type Individual (Type 1)

Name Dr. Catherine Bree Johnston

Sex Female

Practice address 1415 E Kincaid St, Mount Vernon, WA, 98274

Phone (360) 424-4111

Enumeration date Jul 11, 2006

Last updated in NPPES Jun 24, 2022

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD60229218 (WA) Secondary

207RG0300X Geriatric Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License G058563 (CA) Secondary

207RG0300X Geriatric Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License MD60229218 (WA) Secondary

207RH0002X Hospice and Palliative Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License MD60229218 (WA) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Catherine Johnston?

The National Provider Identifier (NPI) for Catherine Johnston is 1396779534, a Type 1 (individual) record in the CMS NPPES registry.

Where does Catherine Johnston practice?

The practice location on file with NPPES is in Mount Vernon, WA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-24.