NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John T Wier, FNP

Family Nurse Practitioner in Oak Ridge, TN · enumerated 2015 · practices at Vector Medical & Concierge, LLC.

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

National Provider Identifier

1851776710

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name John T Wier
Credential FNP
Sex Male
Practice address 800 Oak Ridge Tpke Ste A500, Oak Ridge, TN, 37830
Enumeration date Jul 21, 2015
Last updated in NPPES Apr 30, 2026

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 160633 (TN) Secondary
363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 20071 (TN) Primary
FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

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 specialty is John Wier?
John Wier is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. 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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-30.