Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Wendy Lynn Holder, LCSWC
Clinical Social Worker in Salisbury, MD · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1124115811
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 259147000 | Other | MD | MAGELLAN GROUP |
| 521256095 | Other | MD | AMERICAN PSYCH SYSTEM |
| 609550004 | Medicaid | MD | - |
| 733940-000 | Other | MD | MAGELLAN PIN |
| 517251 | Other | - | UHC MAMSI GROUP # |
| 609550001 | Medicaid | MD | - |
| LM49EA | Other | MD | CAREFIRST BCBS GROUP |
| R968 | Other | - | CARE1ST FEDERAL GROUP DC |
| 640984-02 | Other | MD | CAREFIRST BCBS PIN |
| 609550002 | Medicaid | MD | - |
| 522156095 | Other | MD | UNITED BEHAVIORAL HEALTH |
| 522156095 | Other | MD | NCPPO |
| 0030 | Other | MD | CAREFIRST BCBS FEDERAL |
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
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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 2013-10-16.