Nathaniel Theodore Koutlas, MD

Primary specialty

Orthopaedic Surgery PhysicianTaxonomy code 207X00000X

License

74215 Issued in TN

Practice address

1146 Franck St
101
Alcoa, TN 37701

Phone

(865) 694-7725

NPI assigned

Apr 16, 2019

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

Enrolled in IL, TN2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 2

Specialty

Orthopedic Surgery

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Physiotherapy Associates IncGroup PAC ID 3577470442, shared by 50 NPIs, 1,432 clinicians

Tennessee Orthopaedic Alliance PAGroup PAC ID 5193625069, 358 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Parkwest Medical Center Hospital, Knoxville, TN, CCN 440173
• Fort Loudoun Medical Center Hospital, Lenoir City, TN, CCN 440110

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: nkoutlas139043@direct.unc.nchie.net
• Direct secure messaging: nathaniel.koutlas.p2@direct.toa.nextgenshare.com
• Direct secure messaging: nkoutlas237949@directhisp.wakemed.org

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.

• Tennessee Orthopaedic Alliance PA

  • Orthopaedic Surgery Physician
  • Nashville, TN
  • NPI 1538153937
  Medicare reassignment Care Compare group NPD
• Endeavor Health Medical Group

  • Emergency Medicine Physician
  • Evanston, IL
  • NPI 1497701882

  Orthopaedic Surgery

  Medicare reassignment NPD
• Tennessee Orthopaedic Alliance PA

  • Multi-Specialty Clinic/Center
  • Clarksville, TN
  • NPI 1336905561
  NPD
• Endeavor Health Medical Group

  • Anesthesiology Physician
  • Evanston, IL
  • NPI 1265695944
  NPD
• Tennessee Orthopaedic Alliance PA

  • Orthopaedic Surgery Physician
  • Smyrna, TN
  • NPI 1205820610
  NPD (past)

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

• Fort Loudoun Medical Center

  • General Acute Care Hospital
  • Lenoir City, TN
  • NPI 1609860659
  Care Compare affiliation
• Parkwest Medical Center

  • General Acute Care Hospital
  • Knoxville, TN
  • NPI 1396739165
  Care Compare affiliation

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

{
    "created_epoch": "1555372800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771286400000",
    "number": "1609439694",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 306556",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "372306556",
            "telephone_number": "615-329-2294",
            "fax_number": "615-695-1494"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1146 FRANCK ST",
            "address_2": "101",
            "city": "ALCOA",
            "state": "TN",
            "postal_code": "37701",
            "telephone_number": "865-694-7725"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "9430 Park West Blvd Ste 130",
            "address_purpose": "LOCATION",
            "city": "Knoxville",
            "state": "TN",
            "postal_code": "379234205",
            "country_code": "US",
            "telephone_number": "865-355-0811",
            "fax_number": "865-560-8525",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KOUTLAS",
        "first_name": "NATHANIEL",
        "middle_name": "THEODORE",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-04-16",
        "last_updated": "2026-02-17",
        "certification_date": "2026-02-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "TN",
            "license": "74215",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jordan L Kim, M.D.
• Brandy King, R.N.
• Jessica Ruth King
• Marlee Knuth, PA
• Laken Koontz, DO
• Kroger Limited Partnership I
• Roy E Kuhl, MD
• Kysha Laurelle Lanham, RPH.
• Robert Irick Laugherty, PA-C
• Katherine Aidan Lay, PMHNP

• Orthopaedic Surgery Physician in Alcoa, TN
• Providers in Alcoa, TN by specialty
• Orthopaedic Surgery Physician in Tennessee

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 17, 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.
• 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.