Michael Justin Willcox, MD

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

76652 Issued in AZ

Practice address

14678 N del Webb Blvd
Sun City, AZ 85351-2137

Phone

(623) 933-8289

Fax

(623) 933-2596

NPI assigned

Apr 26, 2018

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 AZ

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 1

Specialty

Family Practice

Education

Tulane University School of Medicine, 2018

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Maxwell GroupGroup PAC ID 3870570468, 10 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Interoperability endpoints

• FHIR API: https://fhir4.healow.com/fhir/r4/IAGHAA/Endpoint/IAGHAA

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.

• Maxwell Group

  • Internal Medicine Physician
  • Sun City, AZ
  • NPI 1912188384
  Medicare reassignment Care Compare group

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

{
    "created_epoch": "1524700800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782950400000",
    "number": "1053809855",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "14678 N DEL WEBB BLVD",
            "city": "SUN CITY",
            "state": "AZ",
            "postal_code": "853512137",
            "telephone_number": "623-933-8289",
            "fax_number": "623-933-2596"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "14678 N DEL WEBB BLVD",
            "city": "SUN CITY",
            "state": "AZ",
            "postal_code": "853512137",
            "telephone_number": "623-933-8289",
            "fax_number": "623-933-2596"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLCOX",
        "first_name": "MICHAEL",
        "middle_name": "JUSTIN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-04-26",
        "last_updated": "2026-07-02",
        "certification_date": "2026-07-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "AZ",
            "license": "76652",
            "primary": true
        },
        {
            "code": "208D00000X",
            "taxonomy_group": "",
            "desc": "General Practice",
            "state": "AZ",
            "license": "76652",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• White Tanks Counseling PLLC
• Morgan Whitmore
• Shannon Rochele Widney, BSN RN
• Barbara M Wiggin, PHD, ANP-C
• Manervia Genette Gentle Wilemon
• Pamela Williams, M.D.
• Eliza A Williamson, FNP
• Laundrea E Willis
• David Winston, M.D.
• Debra Shannon Witthar, BSN, MSN, DNP

• Family Medicine Physician in Sun City, AZ
• Providers in Sun City, AZ by specialty
• Family Medicine Physician in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 2, 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.