John-Nathan Howard Graham, LADAC, QCS

Primary specialty

Addiction (Substance Use Disorder) CounselorTaxonomy code 101YA0400X

License

1579 Issued in TN

Practice address

204 Freckles CT
Johnson City, TN 37601-1417

Phone

(423) 609-5672

NPI assigned

Jul 11, 2022

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

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.

• The Patricia Hall Talbott Legacy Centers, LLC

  • Clinic/Center
  • Maryville, TN
  • NPI 1649897802
  NPD
• Gateway Treatment Centers, LLC

  • Clinic/Center
  • Ellijay, GA
  • NPI 1194459883
  NPD

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

{
    "created_epoch": "1657497600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784160000000",
    "number": "1710611348",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "204 FRECKLES CT",
            "city": "JOHNSON CITY",
            "state": "TN",
            "postal_code": "376011417",
            "telephone_number": "423-609-5672"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "204 FRECKLES CT",
            "city": "JOHNSON CITY",
            "state": "TN",
            "postal_code": "376011417",
            "telephone_number": "423-609-5672"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRAHAM",
        "first_name": "JOHN-NATHAN",
        "middle_name": "HOWARD",
        "credential": "LADAC, QCS",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2022-07-11",
        "last_updated": "2026-07-16",
        "certification_date": "2026-07-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YA0400X",
            "taxonomy_group": "",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": "TN",
            "license": "1579",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Matthew Grace, AGNP-C
• Anthony Grady
• Vickie L Gragg, PTA
• Graham Physical Therapy, LLC
• David H Graham, PT
• Lauren Michelle Graham, MSW
• Matthew Keny Graham, MD
• Joseph D Grant, MD
• Jordan Ashley Lovetere Grasty, LPC
• Dillon G Graves

• Addiction (Substance Use Disorder) Counselor in Johnson City, TN
• Providers in Johnson City, TN by specialty
• Addiction (Substance Use Disorder) Counselor in Tennessee

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 16, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.