Individual provider Active NPI

William Mercurio Libetario Jr., CRNA

  • Certified Registered Nurse Anesthetist
  • Seattle, WA
National Provider Identifier
1073183455
Registry record updated Jun 1, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
ARNP.AP.70075930-CRN Issued in WA
Practice address
325 9TH Ave
Seattle, WA 98104-2420
Phone
(206) 520-5000
NPI assigned
Jun 29, 2021
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 1, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X ARNP.AP.70075930-CRN WA Primary

Addresses

Primary practice location

325 9TH Ave
Seattle, WA 98104-2420

Mailing address

PO Box 50095
Seattle, WA 98145-5095
Phone (206) 520-5700

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, WA2 enrollments

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20230801003425 CA Practitioner - Certified Registered Nurse Anesthetist (Crna) 7719348184
I20260409003496 WA Practitioner - Certified Registered Nurse Anesthetist (Crna) 7719348184 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2023
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
The Association of University PhysiciansGroup PAC ID 0446162697, 3,484 clinicians

Practice addresses (Care Compare)

325 9TH Ave
Seattle, WA 98104-2420
Phone (206) 731-3000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
96.47 of 100Reported as group
Quality
93.25
Promoting interoperability
100
Improvement activities
40
Cost
79.74

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
ARNP.AP.70075930-CRNWAMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
Regents of the University of California Nurse Anesthetist, Certified Registered CurrentSince Sep 1, 2023 Accepting new patients
Regents of the University of California CurrentSince Sep 1, 2023 Accepting new patients
UCLA Medical Group Past Accepting new patients
The Regents of the University of California Past Accepting new patients

Locations

5767 W Century Blvd
Ste 400
Los Angeles, CA 90045
Phone (310) 301-5200

File 4501
Los Angeles, CA 90074

757 Westwood Plz
Ste 3325
Los Angeles, CA 90095
Phone (310) 267-8626

1245 16th St
Santa Monica, CA 90404
Phone (310) 794-1841

1250 16th St
Santa Monica, CA 90404
Phone (310) 301-8695

100 Moody Ct
Ste 200
Thousand Oaks, CA 91360
Phone (805) 418-3500

Organizations & group practices 5

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.

Hospital & facility affiliations 3

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

NPI Registry JSON

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

{
    "created_epoch": "1624924800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780272000000",
    "number": "1073183455",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 50095",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981455095",
            "telephone_number": "206-520-5700"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "325 9TH AVE",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981042420",
            "telephone_number": "206-520-5000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LIBETARIO",
        "first_name": "WILLIAM",
        "middle_name": "MERCURIO",
        "name_prefix": "Mr.",
        "name_suffix": "Jr.",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-06-29",
        "last_updated": "2026-06-01",
        "certification_date": "2026-06-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "WA",
            "license": "ARNP.AP.70075930-CRN",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Seattle, WA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 1, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • 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.