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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christopher W Siwek, M. D.

Specialist in El Dorado, KS · enumerated 2005.

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

National Provider Identifier

1497754709

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Registry record

Entity type Individual (Type 1)
Name Dr. Christopher W Siwek
Credential M. D.
Sex Male
Practice address 700 W Central Ave, Suite 110, El Dorado, KS, 67042
Fax (316) 321-7713
Enumeration date Jul 19, 2005
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 04-18263 (KS) 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
000073 Other SC BLUE CROSS BLUE SHIELD
613340 Other SC FIRST GUARD

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

Is NPI 1497754709 active?
Yes, as of the latest NPPES snapshot, NPI 1497754709 is active (record last updated 2007-07-08).
How do I verify Christopher Siwek's NPI record?
Cross-check NPI 1497754709 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 2007-07-08.