Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Holly M Serrano

Addiction (Substance Use Disorder) Counselor in Cottage Grove, OR · enumerated 2011.

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

National Provider Identifier

1558639724

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Registry record

Entity type Individual (Type 1)

Name Holly M Serrano

Sex Female

Practice address 1345 Birch Ave, Cottage Grove, OR, 97424

Phone (541) 942-3939

Fax (541) 942-9310

Enumeration date Dec 2, 2011

Last updated in NPPES Dec 21, 2018

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers Primary

104100000X Social Worker Behavioral Health & Social Service Providers Secondary

Other identifiers

Identifier	Type	State	Issuer
019047	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.

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Frequently asked questions

How do I verify Holly Serrano's NPI record?

Cross-check NPI 1558639724 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1558639724 active?

Yes, as of the latest NPPES snapshot, NPI 1558639724 is active (record last updated 2018-12-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-21.