Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Heather Marie Knudson, LPN

Licensed Practical Nurse in Salem, OR · enumerated 2022 · practices at Crc Health Oregon, LLC.

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

National Provider Identifier

1821739418

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Heather Marie Knudson

Credential LPN

Sex Female

Practice address 1160 Liberty St Se, Salem, OR, 97302

Phone (503) 391-9762

Enumeration date Apr 6, 2022

Last updated in NPPES Apr 6, 2022

Taxonomy & licenses

164W00000X Licensed Practical Nurse Nursing Service Providers · License 202202735LPN (OR) Primary

LPN · Licensed Practical Nurse: A nurse providing basic care under the direction of RNs and physicians. About the LPN credential

Other identifiers

Identifier	Type	State	Issuer
202202735LPN	Medicaid	OR	-

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

How do I verify Heather Knudson's NPI record?

Cross-check NPI 1821739418 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1821739418 active?

Yes, as of the latest NPPES snapshot, NPI 1821739418 is active (record last updated 2022-04-06).

Other providers at this practice address

Browse all →

William Johansen General Practice Dentistry · Salem, OR NPI 1609942143 James Hayden General Practice Dentistry · Salem, OR NPI 1770645731 Scott Loman General Practice Dentistry · Salem, OR NPI 1841418738 R. Jeremy Haider General Practice Dentistry · Salem, OR NPI 1861685430 Crc Health Oregon, LLC Methadone Clinic · Salem, OR NPI 1427397074 Ilkyu Lee Dentist · Salem, OR NPI 1861826935 Emine Zengin-Demir Dentist · Salem, OR NPI 1700276979 Melissa Jenniches Addiction (Substance Use Disorder) Counselor · Salem, OR NPI 1255719886

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-06.