Individual provider Active NPI

Zachary Timothy Walega, CRNA

  • Certified Registered Nurse Anesthetist
  • Ann Arbor, MI
National Provider Identifier
1578257556
Registry record updated Nov 26, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
4704313953 Issued in MI
Practice address
1500 E Medical Center Dr
Ann Arbor, MI 48109-5000
Phone
(734) 936-4000
NPI assigned
Jun 5, 2023
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 26, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X 4704313953 MI Primary
Student in an Organized Health Care Education/Training Program 390200000X

Addresses

Primary practice location

1500 E Medical Center Dr
Ann Arbor, MI 48109-5000

Mailing address

3621 S State St
Ann Arbor, MI 48108-1633
Phone (734) 647-5299

Other practice location 1

11815 N Waldron Rd
Jerome, MI 49249-9679
Phone (734) 972-0292

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MI

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251216000517 MI Practitioner - Certified Registered Nurse Anesthetist (Crna) 3476047580 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2025
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Regents of the University of MichiganGroup PAC ID 3779496856, 3,344 clinicians

Practice addresses (Care Compare)

1500 E Medical Ctr Dr
Ann Arbor, MI 48109-5000
Phone (734) 936-4000

7500 Challis Rd
Brighton, MI 48116-9416
Phone (810) 263-4000

Hospital & facility affiliations

  • University of Michigan Health System Hospital, Ann Arbor, MI, CCN 230046

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
4704313953MIMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
Regents of the University of Michigan Nurse Anesthetist, Certified Registered CurrentSince Oct 14, 2025 Accepting new patients
Regents of the University of Michigan CurrentSince Oct 14, 2025 Accepting new patients

Locations

1500 E Medical Center Dr
Ann Arbor, MI 48109
Phone (734) 936-4280

4270 Plymouth Rd
Ann Arbor, MI 48109
Phone (734) 232-3000

3621 S State St
Ann Arbor, MI 48108
Phone (734) 647-5229

8001 Challis Rd
Brighton, MI 48116
Phone (810) 227-9510

7500 Challis Rd
Brighton, MI 48116
Phone (734) 764-4190

Organizations & group practices 3

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 1

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": "1685923200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764115200000",
    "number": "1578257556",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3621 S STATE ST",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481081633",
            "telephone_number": "734-647-5299"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 E MEDICAL CENTER DR",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481095000",
            "telephone_number": "734-936-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "11815 N Waldron Rd",
            "address_purpose": "LOCATION",
            "city": "Jerome",
            "state": "MI",
            "postal_code": "492499679",
            "country_code": "US",
            "telephone_number": "734-972-0292",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WALEGA",
        "first_name": "ZACHARY",
        "middle_name": "TIMOTHY",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-06-05",
        "last_updated": "2025-11-26",
        "certification_date": "2025-11-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "MI",
            "license": "4704313953",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Ann Arbor, MI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 26, 2025; 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.