John T Wier, FNP

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

20071 Issued in TN

Practice address

800 Oak Ridge Tpke Ste A500
Oak Ridge, TN 37830-6950

Phone

(865) 481-5001

NPI assigned

Jul 21, 2015

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Opted out of Medicare

Yes, effective Jul 1, 2026 through Jul 1, 2028

Specialty

Nurse Practitioner

Education

Other, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Optimal Health PLLC

  • General Practice Physician
  • Knoxville, TN
  • NPI 1477812196
  NPD
• Optimal Health PLLC

  • Nurse Practitioner
  • Knoxville, TN
  • NPI 1952838708
  NPD
• Optimal Medical PLLC

  • General Practice Physician
  • Knoxville, TN
  • NPI 1689354284
  NPD
• Phoenix Spine and Health PLLC

  • General Practice Physician
  • Knoxville, TN
  • NPI 1063300234
  NPD
• Southeastern Emergency Services P C

  • Nurse Practitioner
  • Athens, TN
  • NPI 1669414264
  NPD
• Abercrombie Radiological Consultants Inc

  • Diagnostic Radiology Physician
  • Knoxville, TN
  • NPI 1942207154
  NPD (past)
• Vector Medical & Concierge, LLC

  • Primary Care Clinic/Center
  • Oak Ridge, TN
  • NPI 1265378533
  NPD (past)

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1437436800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777507200000",
    "number": "1851776710",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "900 E HILL AVE STE 205",
            "city": "KNOXVILLE",
            "state": "TN",
            "postal_code": "379152563",
            "telephone_number": "865-415-2620"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "800 OAK RIDGE TPKE STE A500",
            "city": "OAK RIDGE",
            "state": "TN",
            "postal_code": "378306950",
            "telephone_number": "865-481-5001"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "900 E Hill Ave Ste 205",
            "address_purpose": "LOCATION",
            "city": "Knoxville",
            "state": "TN",
            "postal_code": "379152563",
            "country_code": "US",
            "telephone_number": "865-415-2620",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WIER",
        "first_name": "JOHN",
        "middle_name": "T",
        "credential": "FNP",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-07-21",
        "last_updated": "2026-04-30",
        "certification_date": "2026-04-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "TN",
            "license": "160633",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "TN",
            "license": "20071",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• James Brian White, DPT
• Nancy C. White, RNC
• Serene White
• Skye Nichole Whitehead
• Stephania Whitt, LPN
• Luke Wiggins, DC
• Lorina Wilhelm, N.P.
• Stephanie Anne Wilkerson, NP
• Karen J Wilkinson, CPNP
• William G. Harris,DDS,PC

• Family Nurse Practitioner in Oak Ridge, TN
• Providers in Oak Ridge, TN by specialty
• Family Nurse Practitioner in Tennessee

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 30, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring; Opt Out Affidavits.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.