Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Joseph M Lewis, DC
Chiropractor in Greenfield, WI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1790843647
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Registry record
Entity type Individual (Type 1)
Name Mr. Joseph M Lewis
Credential DC
Sex Male
Practice address Zastrow Chiropractic Clinic, 4811 S. 76th Street Suite 204, Greenfield, WI, 53220
Phone (414) 281-5266
Fax (414) 281-9772
Enumeration date Dec 4, 2006
Last updated in NPPES Sep 25, 2025
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| PIN#35686 | Other | WI | MEDICARE |
| PIN#70560 | Other | WI | MEDICARE |
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.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Joseph Lewis?
Joseph Lewis is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-25.