NPI Portal NPI Lookup & Verification

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

Dr. Douglas James Koch, D.C.

Chiropractor in Fairfield, CT · enumerated 2006 · practices at Center for Sleep and Tmj Disorders of Fairfield, LLC.

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

National Provider Identifier

1801840574

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Registry record

Entity type Individual (Type 1)
Name Dr. Douglas James Koch
Credential D.C.
Sex Male
Practice address Fairfield, CT, 06825
Phone (203) 576-1993
Fax (203) 333-6497
Enumeration date May 19, 2006
Last updated in NPPES Apr 17, 2017

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

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 1000 (CT) Primary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC 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.

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Frequently asked questions

How do I verify Douglas Koch's NPI record?
Cross-check NPI 1801840574 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1801840574 active?
Yes, as of the latest NPPES snapshot, NPI 1801840574 is active (record last updated 2017-04-17).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-17.