Sydney B Gregg, APN

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

38948 Issued in TN

Practice address

320 N Park 40 Blvd Ste a
Knoxville, TN 37923-3624

Phone

(865) 692-3462

Fax

(865) 692-3462

NPI assigned

Jul 29, 2025

Sex

Female

Sole proprietor

No

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 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

Nurse Practitioner

Education

Other, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Knoxville Kidney Center, PLLCGroup PAC ID 2668485558, 13 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: sgregg81248@direct.acumenmd.com
• Direct secure messaging: sgregg1@yourcarecommunity.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.

• Knoxville Kidney Center, PLLC

  • Nephrology Physician
  • Knoxville, TN
  • NPI 1306864186
  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1753747200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753747200000",
    "number": "1447133251",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "320 PARK 40 NORTH BLVD.",
            "address_2": "TCONGER@KNOXVILLEKIDNEYCENTER.COM",
            "city": "KNOXVILLE",
            "state": "TN",
            "postal_code": "379233624",
            "telephone_number": "865-692-3462",
            "fax_number": "865-962-9463"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "320 N PARK 40 BLVD STE A",
            "city": "KNOXVILLE",
            "state": "TN",
            "postal_code": "379233624",
            "telephone_number": "865-692-3462",
            "fax_number": "865-692-3462"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREGG",
        "first_name": "SYDNEY",
        "middle_name": "B",
        "credential": "APN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-07-29",
        "last_updated": "2025-07-29",
        "certification_date": "2025-07-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "TN",
            "license": "38948",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Gordon S Greeson Jr., MD
• Amber Gregg
• Harley Gregg
• Lindsey Gregg
• Ryan Christopher Gregg, M.S., ED.S.
• Gregory Brewer, M.D.,PLLC
• Gregory Hoover MD
• Alexis Gregory, M.A. CCC-SLP
• Evan Gregory
• Jennifer Gregory, M.S.

• Family Nurse Practitioner in Knoxville, TN
• Providers in Knoxville, 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 Jul 29, 2025; 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.