Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Donald Knapp

Registered Nurse in Lake City, FL · enumerated 2018.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1649742875

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Registry record

Entity type Individual (Type 1)

Name Donald Knapp

Sex Male

Practice address 439 Sw Michigan St, Lake City, FL, 32025

Phone (352) 374-5600

Enumeration date Dec 28, 2018

Last updated in NPPES Dec 28, 2018

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN9319109 (FL) 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.

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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 Donald Knapp?

Donald Knapp is registered in NPPES with the primary taxonomy of Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-28.