Robert Nathaniel Feller, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

Practice address

1600 Accelerator Way Ste 220
Knoxville, TN 37920-3078

Phone

(865) 558-4400

Fax

(865) 546-9047

NPI assigned

Feb 10, 2025

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

Enrolled in TN

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.

Enrollment records 1

Specialty

Physician Assistant

Education

Lincoln Memorial University Medical Department, 2024

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Orthotennessee PCGroup PAC ID 3476453572, 152 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• University Health System, Inc Hospital, Knoxville, TN, CCN 440015

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: robert.fuller.p1@direct.orthotn.nextgenshare.com

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.

• Orthotennessee, PC

  • Multi-Specialty Clinic/Center
  • Knoxville, TN
  • NPI 1518049592
  Medicare reassignment Care Compare group
• Orthotennessee, PC

  • Durable Medical Equipment & Medical Supplies
  • Sevierville, TN
  • NPI 1013450360
  NPD
• Orthotennessee, PC

  • Orthopaedic Surgery Physician
  • Maryville, TN
  • NPI 1669563409
  NPD
• Orthotennessee, PC

  • Orthopaedic Surgery Physician
  • Knoxville, TN
  • NPI 1053402040
  NPD (past)
• Orthotennessee, PC

  • Multi-Specialty Clinic/Center
  • Knoxville, TN
  • NPI 1669554549
  NPD (past)

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

• University Health System, Inc.

  • General Acute Care Hospital
  • Knoxville, TN
  • NPI 1538164090
  Care Compare affiliation

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

{
    "created_epoch": "1739145600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768348800000",
    "number": "1821803701",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8320 E WALKER SPRINGS LN STE 200",
            "city": "KNOXVILLE",
            "state": "TN",
            "postal_code": "379233120",
            "telephone_number": "865-769-4500",
            "fax_number": "865-769-4501"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1600 ACCELERATOR WAY STE 220",
            "city": "KNOXVILLE",
            "state": "TN",
            "postal_code": "379203078",
            "telephone_number": "865-558-4400",
            "fax_number": "865-546-9047"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2301 Winners Dr",
            "address_purpose": "LOCATION",
            "city": "Knoxville",
            "state": "TN",
            "postal_code": "379209599",
            "country_code": "US",
            "telephone_number": "865-208-1100",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FELLER",
        "first_name": "ROBERT",
        "middle_name": "NATHANIEL",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-02-10",
        "last_updated": "2026-01-14",
        "certification_date": "2026-01-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Amy Feiten
• Kristin Connell Felder, B.S., COTA/L
• Fabiola Juliana de la Carida Feliciano Gonzalez
• Allison Felkley, PT
• Lisa F Fell
• Sara E Felli
• Ashley Jane Fels, BA
• Karen Felske
• Chandra Feltman, PHD
• Sharonda Lolitha Felton

• Physician Assistant in Knoxville, TN
• Providers in Knoxville, TN by specialty
• Physician Assistant in Tennessee

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 14, 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.