Zachary Robert Duby, PT

Primary specialty

Physical TherapistTaxonomy code 225100000X

License

14439 Issued in TN

Practice address

316 Knox Rd
Knoxville, TN 37918-2316

Phone

(865) 470-2696

Fax

(865) 330-7748

NPI assigned

Sep 2, 2022

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in TN, SC, NC3 enrollments

Enrollment records 3

Specialty

Physical Therapist in Private Practice

Education

Other, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Summit Medical Group, PLLCGroup PAC ID 2860396330, 636 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

87.01 of 100Reported as group

Quality

90

Improvement activities

40

Cost

75.04

Merit-based Incentive Payment System (MIPS)

Final score

89.07 of 100Reported as group

Quality

85.94

Promoting interoperability

100

Improvement activities

40

Cost

77.63

Merit-based Incentive Payment System (MIPS)

Final score

81.78 of 100Reported as group

Quality

65.3

Promoting interoperability

96

Improvement activities

40

Cost

77.31

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: zacharyr.duby.p2@direct.toa.nextgenshare.com
• Direct secure messaging: zachary.duby.1@20785.direct.athenahealth.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.

• Summit Medical Group, PLLC

  dba Cool Springs Internal Medicine and Pediatrics

  • Internal Medicine Physician
  • Brentwood, TN
  • NPI 1659090298
  Medicare reassignment Care Compare group NPD
• Tennessee Orthopaedic Alliance PA

  • Orthopaedic Surgery Physician
  • Nashville, TN
  • NPI 1538153937
  Medicare reassignment NPD
• Emergeortho PA

  • Orthopaedic Surgery Physician
  • Durham, NC
  • NPI 1376592964

  Physical Therapist

  Medicare reassignment NPD
• Greenville Proaxis Therapy, LLC

  dba ATI Physical Therapy of Greenville

  • Physical Therapist
  • Greenville, SC
  • NPI 1669457859
  Medicare reassignment NPD
• Summit Medical Group, PLLC

  • Internal Medicine Physician
  • Knoxville, TN
  • NPI 1548349186
  NPD
• Emergeortho PA

  • Durable Medical Equipment & Medical Supplies
  • Eden, NC
  • NPI 1841170222
  NPD
• Greenville Proaxis Therapy LLC

  dba ATI Physical Therapy

  • Durable Medical Equipment & Medical Supplies
  • Greenville, SC
  • NPI 1740052000
  NPD
• Summit Medical Group, PLLC

  • Family Medicine Physician
  • Knoxville, TN
  • NPI 1699722470
  NPD (past)

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

{
    "created_epoch": "1662076800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750809600000",
    "number": "1295455749",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 26194",
            "city": "BELFAST",
            "state": "ME",
            "postal_code": "049152012",
            "telephone_number": "865-584-4747",
            "fax_number": "833-908-0998"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "316 KNOX RD",
            "city": "KNOXVILLE",
            "state": "TN",
            "postal_code": "379182316",
            "telephone_number": "865-470-2696",
            "fax_number": "865-330-7748"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "232 Sharon Ave NW",
            "address_purpose": "LOCATION",
            "city": "Lenoir",
            "state": "NC",
            "postal_code": "286454326",
            "country_code": "US",
            "telephone_number": "828-758-7091",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1819 Clinch Ave Ste 106",
            "address_purpose": "LOCATION",
            "city": "Knoxville",
            "state": "TN",
            "postal_code": "379162435",
            "country_code": "US",
            "telephone_number": "865-633-0259",
            "fax_number": "865-524-5047",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "111 Doctors Dr",
            "address_purpose": "LOCATION",
            "city": "Greenville",
            "state": "SC",
            "postal_code": "29605",
            "country_code": "US",
            "telephone_number": "864-999-4626",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "6484 Kingston Pike",
            "address_purpose": "LOCATION",
            "city": "Knoxville",
            "state": "TN",
            "postal_code": "379194863",
            "country_code": "US",
            "telephone_number": "865-282-2025",
            "fax_number": "865-673-8007",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DUBY",
        "first_name": "ZACHARY",
        "middle_name": "ROBERT",
        "credential": "PT",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-09-02",
        "last_updated": "2025-06-25",
        "certification_date": "2025-06-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": "SC",
            "license": "12326",
            "primary": false
        },
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": "AZ",
            "license": "CP039095T",
            "primary": false
        },
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": "TN",
            "license": "14439",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "Q077773",
            "state": "TN"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• DRS. Shields and Shields
• Alanah Karis Drum
• Ashley Drysdale
• Chen Du, PHD, MPH, RDN
• Allison Dubrule, BSW
• Rhiannon Riley Ducey, PHD
• Alan Duckett Jr.
• Bailey Scott Duckett, DPT
• Sharronda Lynette Duckett
• Nancy Ellen Duckles, MD

• Physical Therapist in Knoxville, TN
• Providers in Knoxville, TN by specialty
• Physical Therapist in Tennessee

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 25, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.