Matthew Li-an Au, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

74247 Issued in AZ

Practice address

1917 S Crismon Rd
Mesa, AZ 85209-6216

Phone

(480) 610-7100

NPI assigned

May 16, 2022

Last updated

Sep 25, 2025By the provider in NPPES

Sex

Male

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 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

Internal Medicine

Education

Other, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Banner Primary Care Physicians Arizona LLCGroup PAC ID 6406020155, 236 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Banner Home Care-Arizona Home health agency, Mesa, AZ, CCN 037015
• Banner Baywood Medical Center Hospital, Mesa, AZ, CCN 030088

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Banner Primary Care Physicians Arizona LLC

  • Primary Care Clinic/Center
  • Phoenix, AZ
  • NPI 1659640902
  Medicare reassignment Care Compare group NPD
• Banner Primary Care Physicians Arizona LLC

  • Clinical Medical Laboratory
  • Peoria, AZ
  • NPI 1649544362
  NPD
• Banner Primary Care Physicians Arizona LLC

  • Primary Care Clinic/Center
  • Phoenix, AZ
  • NPI 1790306066
  NPD
• Banner Primary Care Physicians Arizona LLC

  • Primary Care Clinic/Center
  • Phoenix, AZ
  • NPI 1417238908
  NPD (past)

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

• Banner Baywood Medical Center

  • General Acute Care Hospital
  • Mesa, AZ
  • NPI 1194758284
  Care Compare affiliation
• Banner Home Care-Arizona

  • Home Health Agency
  • Sun City, AZ
  • NPI 1023051927
  Care Compare affiliation

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

{
    "created_epoch": "1652659200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758758400000",
    "number": "1013654664",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "150 BERGEN ST RM I-248",
            "city": "NEWARK",
            "state": "NJ",
            "postal_code": "071032496",
            "telephone_number": "973-972-4300"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1917 S CRISMON RD",
            "city": "MESA",
            "state": "AZ",
            "postal_code": "852096216",
            "telephone_number": "480-610-7100"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "AU",
        "first_name": "MATTHEW",
        "middle_name": "LI-AN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-05-16",
        "last_updated": "2025-09-25",
        "certification_date": "2025-09-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "AZ",
            "license": "74247",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Aia Attia
• Ivy Konadu Attobra, PMHNP-BC
• Collins G Atubiga
• Christopher Atwell, M.D.
• Andrew Au
• Megan Aubry, OT
• Auc Baywood LLC (Advanced Urgent Care)
• Audio-Logic Consultants, LLC
• Audiology Distribution, LLC (HearUSA)
• Joseph Paul Auditore, LMT

• Internal Medicine Physician in Mesa, AZ
• Providers in Mesa, AZ by specialty
• Internal Medicine Physician in Arizona

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