NPIMap

Individual provider Active NPI

Ralph C. Atkinson III, M.D.

  • Nephrology Physician
  • Nashville, TN
National Provider Identifier
1083606248
Registry record updated Feb 5, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
License
21608 Issued in TN
Practice address
408 42ND Ave N Ste 300
Nashville, TN 37209-3669
Phone
(615) 356-4111
Fax
(615) 356-8011
NPI assigned
Aug 15, 2005
Last updated
Feb 5, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 5, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Nephrology Physician 207RN0300X 21608 TN Primary

Addresses

Primary practice location

408 42ND Ave N Ste 300
Nashville, TN 37209-3669

Mailing address

408 42ND Ave N Ste 300
Nashville, TN 37209-3669
Phone (615) 356-4111

Other identifiers 1

IdentifierTypeStateIssuer
3061200MedicaidTN

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TN
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20100629000559 TN Practitioner - Nephrology 0244310035 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nephrology
Education
University of Mississippi School of Medicine, 1985
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Nephrology Associates, PCGroup PAC ID 0840282000, 40 clinicians

Practice addresses (Care Compare)

408 42ND Ave N
Suite 300
Nashville, TN 37209-3669
Phone (615) 356-4111

854 W James Campbell Blvd
Suite 101a
Columbia, TN 38401-4671
Phone (931) 388-3209

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Saint Thomas Medical Partners CurrentSince Jan 1, 2020 Accepting new patients
Nephrology Associates, PC Nephrology CurrentSince Jan 16, 2010 Accepting new patients
Lima Memorial Joint Operating Company Past Accepting new patients

Locations

854 W James M Campbell Blvd
Ste 101A
Columbia, TN 38401
Phone (931) 388-3209

1311 S Locust Ave
Ste 104
Lawrenceburg, TN 38464
Phone (931) 762-7194

28 White Bridge Pike
Ste 300
Nashville, TN 37205
Phone (615) 356-4111

300 20th Ave N
Fl 9
Nashville, TN 37203

Organizations & group practices 3

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

Hospital & facility affiliations 7

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1124064000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770249600000",
    "number": "1083606248",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "408 42ND AVE N STE 300",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "372093669",
            "telephone_number": "615-356-4111",
            "fax_number": "615-356-8011"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "408 42ND AVE N STE 300",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "372093669",
            "telephone_number": "615-356-4111",
            "fax_number": "615-356-8011"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ATKINSON",
        "first_name": "RALPH",
        "middle_name": "C.",
        "name_suffix": "III",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-08-15",
        "last_updated": "2026-02-05",
        "certification_date": "2026-02-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "TN",
            "license": "21608",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3061200",
            "state": "TN"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Nashville, TN

Sources for this page

Verify at the official NPI Registry.