William Alton Shakespeare, MD

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

80284 Issued in AZ

Practice address

13400 E Shea Blvd
Scottsdale, AZ 85259-5452

Phone

(480) 301-8000

NPI assigned

Oct 3, 2006

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

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in UT, AZ2 enrollments

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 2

Specialty

Anesthesiology

Education

University of Utah School of Medicine, 2005

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mountain West Anesthesia LLCGroup PAC ID 9032018502, 267 clinicians

Mayo Clinic ArizonaGroup PAC ID 7012829930, 1,618 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mayo Clinic Hospital Hospital, Phoenix, AZ, CCN 030103
• Park City Hospital Hospital, Park City, UT, CCN 460057
• Intermountain Health Utah Valley Hospital Hospital, Provo, UT, CCN 460001
• Intermountain Health Heber Valley Hospital Hospital, Heber City, UT, CCN 461307

Merit-based Incentive Payment System (MIPS)

Final score

87.53 of 100Reported as group

Quality

89.3

Improvement activities

40

Cost

78.06

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: wshakespeare2689039@ehrdirect.mayoclinicmsg.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.

• Mountain West Anesthesia LLC

  • Anesthesiology Physician
  • Lehi, UT
  • NPI 1558391763
  Medicare reassignment Care Compare group NPD
• Mayo Clinic Arizona

  • Multi-Specialty Clinic/Center
  • Scottsdale, AZ
  • NPI 1558332494
  Medicare reassignment Care Compare group
• NPH Anesthesia of Utah, LLC

  • Anesthesiology Physician
  • Ogden, UT
  • NPI 1366077273
  Medicare reassignment NPD

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

• Mayo Clinic Arizona

  • General Acute Care Hospital
  • Phoenix, AZ
  • NPI 1154392231
  Care Compare affiliation
• Ihc Health Services Inc

  • Critical Access Hospital
  • Heber City, UT
  • NPI 1316055205
  Care Compare affiliation
• Ihc Health Services Inc

  • General Acute Care Hospital
  • Park City, UT
  • NPI 1851530984
  Care Compare affiliation
• Ihc Health Services, Inc.

  • General Acute Care Hospital
  • Provo, UT
  • NPI 1114025491
  Care Compare affiliation
• Ihc Health Services, Inc.

  • Infusion Therapy Clinic/Center
  • Spanish Fork, UT
  • NPI 1679426944

  Hospital

  Care Compare affiliation
• Ihc Health Services, Inc.

  • Infusion Therapy Clinic/Center
  • American Fork, UT
  • NPI 1982557252

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1159833600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778630400000",
    "number": "1528153152",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 860912",
            "city": "MINNEAPOLIS",
            "state": "MN",
            "postal_code": "554860912"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "13400 E SHEA BLVD",
            "city": "SCOTTSDALE",
            "state": "AZ",
            "postal_code": "852595452",
            "telephone_number": "480-301-8000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "5121 S Cottonwood Street",
            "address_2": "Intermountain Medical Center",
            "address_purpose": "LOCATION",
            "city": "Murray",
            "state": "UT",
            "postal_code": "84157",
            "country_code": "US",
            "telephone_number": "801-507-5248",
            "fax_number": "801-990-1912",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SHAKESPEARE",
        "first_name": "WILLIAM",
        "middle_name": "ALTON",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-03",
        "last_updated": "2026-05-13",
        "certification_date": "2026-05-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "AZ",
            "license": "80284",
            "primary": true
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "UT",
            "license": "7502033-1205",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "wshakespeare2689039@ehrdirect.mayoclinicmsg.org",
            "affiliation": "N",
            "address_1": "13400 E Shea Blvd",
            "city": "Scottsdale",
            "state": "AZ",
            "country_code": "US",
            "postal_code": "852595452",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

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• Hanan Shamoun, RPH
• Mona Janis Shane, MA, LPC, MAC

• Anesthesiology Physician in Scottsdale, AZ
• Providers in Scottsdale, AZ by specialty
• Anesthesiology Physician in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 13, 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.