Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Rebecca Mackelprang, LMSW
Social Worker in Saint Charles, MO · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1700570983
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Registry record
Entity type Individual (Type 1)
Name Rebecca Mackelprang
Credential LMSW
Sex Female
Practice address 2451 Executive Dr Ste 205, Saint Charles, MO, 63303
Phone (844) 853-8937
Enumeration date Jun 8, 2023
Last updated in NPPES Jul 10, 2025
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 2022015058 (MO) Primary
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 Rebecca Mackelprang?
Rebecca Mackelprang is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-10.