Steven Lloyd McMaster, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

18586 Issued in CA

Practice address

450 S Kitsap Blvd Ste 2120
Port Orchard, WA 98366-3773

Phone

(360) 744-6275

Fax

(360) 782-3115

NPI assigned

Sep 21, 2006

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

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in CA, WA2 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

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: smcmaster4056639@ghc.direct-ci.net

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.

• Multicare Health System

  dba Multicare Neurological Surgery

  • Neurological Surgery Physician
  • Tacoma, WA
  • NPI 1497766638
  Medicare reassignment NPD
• Kaiser Foundation Health Plan of Washington

  • Multi-Specialty Clinic/Center
  • Seattle, WA
  • NPI 1396810701
  Medicare reassignment
• Newport Center Radiology Associates Medical Group Inc

  dba Newport Imaging Center

  • Diagnostic Radiology Physician
  • Newport Beach, CA
  • NPI 1013951714
  Medicare reassignment
• Kaiser Foundation Health Plan of Washington

  dba Everett Medical Center

  • Multi-Specialty Clinic/Center
  • Everett, WA
  • NPI 1386935351
  NPD
• Kaiser Foundation Health Plan of Washington

  • Multi-Specialty Clinic/Center
  • Renton, WA
  • NPI 1669619870
  NPD
• Multicare Health System

  dba MultiCare Rockwood Lab

  • Clinical Medical Laboratory
  • Tacoma, WA
  • NPI 1154818326
  NPD
• Multicare Health System

  dba MultiCare Deaconess Retail Pharmacy

  • Community/Retail Pharmacy
  • Spokane, WA
  • NPI 1396594875
  NPD
• Multicare Health System

  dba MultiCare Good Samaritan Hospital

  • General Acute Care Hospital
  • Puyallup, WA
  • NPI 1841231461
  NPD

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

{
    "created_epoch": "1158796800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1742169600000",
    "number": "1396844841",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 EMBARCADERO CTR STE 1900",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941113723",
            "telephone_number": "415-658-6791"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "450 S KITSAP BLVD STE 2120",
            "city": "PORT ORCHARD",
            "state": "WA",
            "postal_code": "983663773",
            "telephone_number": "360-744-6275",
            "fax_number": "360-782-3115"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "10452 Silverdale Way NW",
            "address_purpose": "LOCATION",
            "city": "Silverdale",
            "state": "WA",
            "postal_code": "983839411",
            "country_code": "US",
            "telephone_number": "360-307-7300",
            "fax_number": "360-307-7304",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2 Embarcadero Ctr Lbby Level",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941113823",
            "country_code": "US",
            "telephone_number": "888-663-6331",
            "fax_number": "415-252-7176",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MCMASTER",
        "first_name": "STEVEN",
        "middle_name": "LLOYD",
        "name_prefix": "Mr.",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-09-21",
        "last_updated": "2025-03-17",
        "certification_date": "2025-03-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WA",
            "license": "PA60805208",
            "primary": false
        },
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "CA",
            "license": "PA18586",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "18586",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2094586",
            "state": "WA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "smcmaster311194@fhsce.catholichealth.net",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "450 S Kitsap Blvd Ste 2120",
            "city": "Port Orchard",
            "state": "WA",
            "country_code": "US",
            "postal_code": "983663773",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepicwa.kp.org:14430/Interconnect-CE-PRD/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ceq",
            "affiliation": "N",
            "endpointDescription": "carequality",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "10452 Silverdale Way NW",
            "city": "Silverdale",
            "state": "WA",
            "country_code": "US",
            "postal_code": "983839411",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Andrea Irene McDonald, LMP
• Rachel Erin McElvain, PAC
• Edward James McGiveney Jr.
• Michael G McGrath, OD
• Mindy Lynn McKnew, LMT
• Medwise Solutions LLC (Personal Touch LLC)
• Medworx LLC (South Kitsap Pharmacy)
• Medworx LLC
• Jade Amaya Mefi
• Melany K. Bloomquist, DDS, PS

• Physician Assistant in Port Orchard, WA
• Providers in Port Orchard, WA by specialty
• Physician Assistant in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 17, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.