NPI Portal NPI Lookup & Verification

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

Leo Herbert Simoson, DC

Chiropractor in Avon, OH · enumerated 2006 · practices at Simoson Chiropractic, Inc..

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

National Provider Identifier

1821107400

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Leo Herbert Simoson
Credential DC
Sex Male
Practice address Avon, OH, 44011
Phone (440) 934-2131
Fax (440) 934-2132
Enumeration date Aug 29, 2006
Last updated in NPPES May 8, 2008

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

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License DC. 2778 (OH) Primary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier Type State Issuer
2168925 Medicaid OH -

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

How do I verify Leo Simoson's NPI record?
Cross-check NPI 1821107400 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1821107400 active?
Yes, as of the latest NPPES snapshot, NPI 1821107400 is active (record last updated 2008-05-08).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-08.