William P Mustas, P.A.

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

1307 Issued in WI

Practice address

1111 Delafield St Ste 215
Waukesha, WI 53188-3403

Phone

(262) 542-0074

Fax

(262) 542-2803

NPI assigned

Aug 13, 2006

Last updated

Sep 18, 2024By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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 WI, NM2 enrollments

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 2

Specialty

Physician Assistant

Education

Other, 2000

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Los Alamos Physician Practices LLCGroup PAC ID 4587661541, 19 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Los Alamos Medical Center Hospital, Los Alamos, NM, CCN 320033

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: william.mustas.1@19849.direct.athenahealth.com
• Direct secure messaging: williammustas@metro.medalliesdirect.net

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.

• Los Alamos Physician Practices LLC

  • Family Medicine Physician
  • Los Alamos, NM
  • NPI 1750330510
  Medicare reassignment Care Compare group NPD
• Ascension Medical Group-Southeast Wisconsin Inc

  dba Ascension Medical Group

  • Internal Medicine Physician
  • Glendale, WI
  • NPI 1609881077
  Medicare reassignment
• Metropolitan Urology Group, SC

  • Urology Physician
  • Milwaukee, WI
  • NPI 1336201110
  Medicare reassignment
• Signify Health Medical Associates, PLLC

  • General Practice Physician
  • Dallas, TX
  • NPI 1750845863

  WI

  Medicare reassignment
• Prohealth Medical Group Inc

  • Family Medicine Physician
  • Waukesha, WI
  • NPI 1790720613
  NPD (past)

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

• PHC-Los Alamos Inc

  dba Los Alamos Medical Center

  • Rural Acute Care Hospital
  • Los Alamos, NM
  • NPI 1285701623
  Care Compare affiliation

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

{
    "created_epoch": "1155427200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1726617600000",
    "number": "1629080932",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1111 DELAFIELD ST STE 215",
            "city": "WAUKESHA",
            "state": "WI",
            "postal_code": "531883403",
            "telephone_number": "262-542-0074",
            "fax_number": "262-542-2803"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1111 DELAFIELD ST STE 215",
            "city": "WAUKESHA",
            "state": "WI",
            "postal_code": "531883403",
            "telephone_number": "262-542-0074",
            "fax_number": "262-542-2803"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MUSTAS",
        "first_name": "WILLIAM",
        "middle_name": "P",
        "credential": "P.A.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-08-13",
        "last_updated": "2024-09-18",
        "certification_date": "2024-09-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WI",
            "license": "1307",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Glen-James Murphy, D.C.
• James Francis Murphy Sr., D.D.S.
• Barbara J Murray, MS, LPC
• Michael D Murrell
• Gina Ann Musa
• Debra A Muth, NP
• Myeyedr Optometry of Wisconsin, LLC (MyEyeDr.)
• Donald J Nadar, MD
• Amin Namazi, APNP
• Melissa Napiorkowski, CSW, CADC-D

• Physician Assistant in Waukesha, WI
• Providers in Waukesha, WI by specialty
• Physician Assistant in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 18, 2024; 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.