Individual provider Active NPI

Brett A May

  • Certified Registered Nurse Anesthetist
  • Rochester, MN
National Provider Identifier
1942789904
Registry record updated Mar 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
2467729 Issued in MN
Practice address
200 1St St SW
Rochester, MN 55905-0001
Phone
(507) 284-2511
NPI assigned
Aug 10, 2018
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 13, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X 2467729 MN Primary
Certified Registered Nurse Anesthetist 367500000X 2232 MN
Certified Registered Nurse Anesthetist 367500000X 8914 WI

Addresses

Primary practice location

200 1St St SW
Rochester, MN 55905-0001

Mailing address

200 1St St SW
Rochester, MN 55905-0001
Phone (507) 284-2511

Other practice location 1

700 West Ave S
LA Crosse, WI 54601-4783
Phone (608) 785-0940

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20190103003084 WI Practitioner - Certified Registered Nurse Anesthetist (Crna) 0042564791 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mayo Clinic Health System-Southwest Wisconsin Region IncGroup PAC ID 0345152443, shared by 9 NPIs, 539 clinicians

Practice addresses (Care Compare)

700 W Ave S
La Crosse, WI 54601-4783
Phone (608) 785-0940

800 E Blackhawk Ave
Prairie Du Chien, WI 53821-1698
Phone (608) 326-0808

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Certified Registered Nurse

State licenses

LicenseStateTypeSpecialty
2232MNMDAthletic Trainer
2467729MNMDCertified Registered Nurse Anesthetist
8914WIMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
Mayo Clinic Health System-Southwest Wisconsin Region, Inc. Current Accepting new patients
Vernon Memorial Healthcare, Inc. CurrentSince Jul 1, 2022 Accepting new patients
Mayo Clinic Health System-Southwest Wisconsin Region, Inc. CurrentSince Dec 21, 2018 Accepting new patients
Mayo Clinic Health System-Southwest Wisconsin Region, Inc. CurrentSince Dec 21, 2018 Accepting new patients
Vernon Memorial Healthcare, Inc. Past Accepting new patients

Locations

200 1st St SW
Rochester, MN 55905
Phone (507) 266-4850

700 West Ave S
La Crosse, WI 54601
Phone (608) 791-4156

800 E Blackhawk Ave
Prairie du Chien, WI 53821
Phone (608) 326-0808

507 S Main St
Viroqua, WI 54665
Phone (608) 637-2101

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 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": "1533859200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773360000000",
    "number": "1942789904",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "200 1ST ST SW",
            "city": "ROCHESTER",
            "state": "MN",
            "postal_code": "559050001",
            "telephone_number": "507-284-2511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 1ST ST SW",
            "city": "ROCHESTER",
            "state": "MN",
            "postal_code": "559050001",
            "telephone_number": "507-284-2511"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "700 West Ave S",
            "address_purpose": "LOCATION",
            "city": "LA Crosse",
            "state": "WI",
            "postal_code": "546014783",
            "country_code": "US",
            "telephone_number": "608-785-0940",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MAY",
        "first_name": "BRETT",
        "middle_name": "A",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-08-10",
        "last_updated": "2026-03-13",
        "certification_date": "2026-03-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "MN",
            "license": "2467729",
            "primary": true
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "MN",
            "license": "2232",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "WI",
            "license": "8914",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Rochester, MN

Sources for this page

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