Individual provider Active NPI

Michael Tanner Libsack, DO

  • Anesthesiology Physician
  • Flagstaff, AZ
National Provider Identifier
1659830974
Registry record updated Jun 24, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
011715 Issued in AZ
Practice address
1200 N Beaver St
Flagstaff, AZ 86001-3118
Phone
(928) 779-3366
NPI assigned
Mar 16, 2019
Last updated
Jun 24, 2025By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jun 24, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiology Physician 207L00000X 011715 AZ Primary

Addresses

Primary practice location

1200 N Beaver St
Flagstaff, AZ 86001-3118

Mailing address

1200 N Beaver St
Attn: Payer Credentialing
Flagstaff, AZ 86001-3118
Phone (928) 213-6235

Other practice location 1

1430 Tulane Ave # 8050
New Orleans, LA 70112-2632
Phone (504) 988-5904

Other practice location 2

200 Mullins Dr
Lebanon, OR 97355-3983
Phone (602) 708-3662

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in AZ
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250707003861 AZ Practitioner - Anesthesiology 6002216280 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Anesthesiology
Education
Other, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

1200 N Beaver St
Flagstaff, AZ 86001-3118
Phone (928) 779-3366

1215 N Beaver St
Suite 203
Flagstaff, AZ 86001-3126
Phone (928) 773-2249

2000 S Thompson St
Flagstaff, AZ 86001-8759
Phone (928) 226-6400

269 S Candy LN
Cottonwood, AZ 86326-4158
Phone (928) 639-6000

7810 N US Hwy 89
Flagstaff, AZ 86004-6255
Phone (928) 522-8375

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy

Practice roles

OrganizationSpecialtyStatusNew patients
Northern Arizona Healthcare Corporation CurrentSince Jul 18, 2025 Accepting new patients
Northern Arizona Healthcare Corporation Anesthesiology CurrentSince Jul 18, 2025 Accepting new patients

Locations

269 S Candy Ln
Cottonwood, AZ 86326
Phone (928) 634-2251

1200 N Beaver St
Flagstaff, AZ 86001
Phone (928) 213-6235

1215 N Beaver St
Ste 203
Flagstaff, AZ 86001
Phone (928) 773-2249

Interoperability endpoints

  • Direct secure messaging: mlibsack@yourcarecommunity.org

Organizations & group practices 2

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.

Hospital & facility affiliations 6

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": "1552694400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750723200000",
    "number": "1659830974",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1200 N BEAVER ST",
            "address_2": "ATTN: PAYER CREDENTIALING",
            "city": "FLAGSTAFF",
            "state": "AZ",
            "postal_code": "860013118",
            "telephone_number": "928-213-6235",
            "fax_number": "928-213-6292"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1200 N BEAVER ST",
            "city": "FLAGSTAFF",
            "state": "AZ",
            "postal_code": "860013118",
            "telephone_number": "928-779-3366"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1430 Tulane Ave # 8050",
            "address_purpose": "LOCATION",
            "city": "New Orleans",
            "state": "LA",
            "postal_code": "701122632",
            "country_code": "US",
            "telephone_number": "504-988-5904",
            "fax_number": "504-988-3971",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "200 Mullins Dr",
            "address_purpose": "LOCATION",
            "city": "Lebanon",
            "state": "OR",
            "postal_code": "973553983",
            "country_code": "US",
            "telephone_number": "602-708-3662",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LIBSACK",
        "first_name": "MICHAEL",
        "middle_name": "TANNER",
        "credential": "DO",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-03-16",
        "last_updated": "2025-06-24",
        "certification_date": "2025-06-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "AZ",
            "license": "011715",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Flagstaff, AZ

Sources for this page

Verify at the official NPI Registry.