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

Louis I. Koff, D.C.

Chiropractor in Manassas, VA · enumerated 2006 · practices at Chiropractic Health Clinic of Manassas, Inc..

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

National Provider Identifier

1780663153

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Registry record

Entity type Individual (Type 1)
Name Louis I. Koff
Credential D.C.
Sex Male
Practice address Manassas, VA, 20110
Phone (703) 361-0251
Fax (703) 361-8853
Enumeration date Jan 12, 2006
Last updated in NPPES Jun 18, 2009

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

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 0104000171 (VA) 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

Where does Louis Koff practice?
The practice location on file with NPPES is in Manassas, VA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Louis Koff?
The National Provider Identifier (NPI) for Louis Koff is 1780663153, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-06-18.