Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor
Nigel B Darvell, M.S.W., L.C.S.W.
Clinical Social Worker in Creve Coeur, MO · enumerated 2007 · practices at Ballas Chiropractic Centre Inc.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1568502342
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Registry record
Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 237657 | Other | MO | HEALTHLINK |
| 152093 | Other | MO | BLUE CROSS BLUE SHIELD |
| 430985159DAR | Other | MO | MERCY HEALTH PLANS |
| 091244000 | Other | MO | MAGELLAN |
| 499673119 | Medicaid | MO | - |
| 43098515902 | Other | MO | CMR UNITY |
| 6212559 | Other | MO | UNITED BEHAVIORAL HEALTH |
| O64006 | Other | MO | EXCLUSIVE CHOICE |
| 275778 | Other | MO | VALUE OPTIONS ID |
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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Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-08.