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

Calleen M Olson, DIPL.OM, L.AC, LMT

Acupuncturist in Parker, CO · enumerated 2010.

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

National Provider Identifier

1427377514

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Registry record

Entity type Individual (Type 1)

Name Calleen M Olson

Credential DIPL.OM, L.AC, LMT

Sex Female

Practice address Parker, CO, 80134

Phone (303) 841-7263

Fax (303) 841-7263

Enumeration date May 27, 2010

Last updated in NPPES May 27, 2010

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

Taxonomy & licenses

171100000X Acupuncturist Other Service Providers · License 1269 (CO) Primary

LAC · Licensed Acupuncturist: A practitioner licensed to perform acupuncture. About the LAC credential

Other identifiers

Identifier	Type	State	Issuer
722772	Other	CO	OPTUM HEALTH CARE PROVIDER

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 Calleen Olson's NPI record?

Cross-check NPI 1427377514 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1427377514 active?

Yes, as of the latest NPPES snapshot, NPI 1427377514 is active (record last updated 2010-05-27).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-05-27.