Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Melissa Derhak, LPN

Licensed Practical Nurse in Eugene, OR · enumerated 2016.

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

National Provider Identifier

1174974307

Verified

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Registry record

Entity type Individual (Type 1)

Name Melissa Derhak

Credential LPN

Sex Female

Practice address Eugene, OR, 97401

Phone (541) 344-3574

Fax (541) 344-5652

Enumeration date Jun 29, 2016

Last updated in NPPES Jun 29, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

164W00000X Licensed Practical Nurse Nursing Service Providers · License 201330198 (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
230475	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

Is NPI 1174974307 active?

Yes, as of the latest NPPES snapshot, NPI 1174974307 is active (record last updated 2016-06-29).

How do I verify Melissa Derhak's NPI record?

Cross-check NPI 1174974307 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Integrated Health Clinics of Eugene Methadone Clinic · Eugene, OR NPI 1184788796 Denise Marsh Addiction (Substance Use Disorder) Counselor · Eugene, OR NPI 1366877722 Integrated Health Management Community/Behavioral Health Agency · Eugene, OR NPI 1770944506 Michael Querubin Addiction (Substance Use Disorder) Counselor · Eugene, OR NPI 1861840621 Bonnie Mckinney Addiction (Substance Use Disorder) Counselor · Eugene, OR NPI 1912513011 Micah Eckburg Peer Specialist · Eugene, OR NPI 1982444824

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-29.