Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christopher Paul Nelson, M.D.

Specialist in Clackamas, OR · enumerated 2006.

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

National Provider Identifier

1144337619

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Registry record

Entity type Individual (Type 1)

Name Dr. Christopher Paul Nelson

Credential M.D.

Sex Male

Practice address 9900 Se Sunnyside Rd, Kaiser Permanente Sunnybrook Medical Center, Clackamas, OR, 97015

Phone (503) 571-3081

Fax (503) 571-3069

Enumeration date Aug 23, 2006

Last updated in NPPES Jul 18, 2007

Taxonomy & licenses

174400000X Specialist Other Service Providers · License MD13692 (OR) Primary

174400000X Specialist Other Service Providers · License MD00034604 (WA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 1144337619 active?

Yes, as of the latest NPPES snapshot, NPI 1144337619 is active (record last updated 2007-07-18).

How do I verify Christopher Nelson's NPI record?

Cross-check NPI 1144337619 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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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-18.