Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christopher G Olson, MD

Obstetrics & Gynecology Physician in Naperville, IL · enumerated 2005.

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

National Provider Identifier

1265422448

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Registry record

Entity type Individual (Type 1)

Name Christopher G Olson

Credential MD

Sex Male

Practice address 1220 Hobson Rd, Suite 116, Naperville, IL, 60540

Phone (630) 416-3300

Fax (630) 646-5648

Enumeration date Oct 27, 2005

Last updated in NPPES Mar 11, 2009

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 036077237 (IL) Primary

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

Other identifiers

Identifier	Type	State	Issuer
036077237 5	Medicaid	IL	-

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 Christopher Olson's NPI record?

Cross-check NPI 1265422448 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1265422448 active?

Yes, as of the latest NPPES snapshot, NPI 1265422448 is active (record last updated 2009-03-11).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-03-11.