Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Marshall
Technician in Gary, IN · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1851047302
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Registry record
Entity type Individual (Type 1)
Name John Marshall
Sex Male
Practice address 4747 W 24th Ave, Gary, IN, 46406
Phone (219) 240-8615
Enumeration date Feb 23, 2022
Last updated in NPPES Feb 23, 2022
Taxonomy & licenses
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
What specialty is John Marshall?
John Marshall is registered in NPPES with the primary taxonomy of Technician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-02-23.