Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Calvin Thomas Meineke, MD
Internal Medicine Physician in Oak Park, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1184727539
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 363386229 | Other | - | CIGNA |
| 363386229 | Other | - | ALLIED |
| 363386229 | Other | - | GOLDEN RULE |
| 363386229 | Other | - | TRUSTMARK |
| 4491453 | Other | - | AETNA |
| IL064886 | Other | - | MUTUAL OF OMAHA |
| 110012154 | Other | - | RRMDC |
| 31601138 | Other | - | BCBS |
| 363386229 | Other | - | BEECHSTREET |
| 363386229 | Other | - | UNITEDHEALTHCARE |
| 98985 | Other | - | WELLMARK BCBS |
| 363386229 | Other | - | FIRST HEALTH |
| 363386229 | Other | - | HUMANA |
| PR2994187 | Other | - | CIGNA |
| 363386229 | Other | - | ILLINOIS PUBLIC AID |
| 363386229 | Other | - | CORESOURCE |
| 363386229 | Other | - | GALLAGHER BASSETT |
| 363386229 | Other | - | TIME |
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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Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-05-13.