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

Ms. Lydia D. Byhardt Bollinger, L.C.S.W.

Clinical Social Worker in West Linn, OR · enumerated 2006 · practices at Rose Snyder Edm Psyd, LLC.

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

National Provider Identifier

1144381682

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Registry record

Entity type Individual (Type 1)

Name Ms. Lydia D. Byhardt Bollinger

Credential L.C.S.W.

Sex Female

Practice address West Linn, OR, 97068

Phone (971) 409-5613

Fax (971) 925-4885

Enumeration date Dec 12, 2006

Last updated in NPPES Jul 17, 2024

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 3452 (OR) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier	Type	State	Issuer
3452	Other	OR	LCSW

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 Lydia Byhardt Bollinger's NPI record?

Cross-check NPI 1144381682 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1144381682 active?

Yes, as of the latest NPPES snapshot, NPI 1144381682 is active (record last updated 2024-07-17).

Other providers at this practice address

Browse all →

Rose Snyder Psychologist · West Linn, OR NPI 1083862775 Laura Brown Mental Health Counselor · West Linn, OR NPI 1144723982 April Lee Massage Therapist · West Linn, OR NPI 1265065205 Alexandra Archer Professional Counselor · West Linn, OR NPI 1548869811 Rose Snyder Edm Psyd, LLC Psychologist · West Linn, OR NPI 1053230482

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-17.