Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Donald Ferguson Jr., PHD

Clinical Laboratory Director (Non-physician) in Johnson City, TN · enumerated 2007.

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

National Provider Identifier

1831373414

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Registry record

Entity type Individual (Type 1)

Name Donald Ferguson Jr.

Credential PHD

Sex Male

Practice address 325 N State of Franklin Rd, Johnson City, TN, 37604

Phone (423) 439-6242

Enumeration date Dec 19, 2007

Last updated in NPPES Dec 19, 2007

Taxonomy & licenses

247ZC0005X Clinical Laboratory Director (Non-physician) Technologists, Technicians & Other Technical Service Providers · License ML7576 (TN) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
3401356	Other	TN	LAB MEDICARE PIN

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Donald Ferguson?

The National Provider Identifier (NPI) for Donald Ferguson is 1831373414, a Type 1 (individual) record in the CMS NPPES registry.

Where does Donald Ferguson practice?

The practice location on file with NPPES is in Johnson City, TN. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-19.