Individual provider Active NPI

William A Cliby, M.D.

  • Gynecologic Oncology Physician
  • Rochester, MN
National Provider Identifier
1205815636
Registry record updated Feb 26, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gynecologic Oncology PhysicianTaxonomy code 207VX0201X
License
34770 Issued in MN
Practice address
200 1St St SW
Rochester, MN 55905-0001
Phone
(507) 284-2511
NPI assigned
Jan 13, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 26, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Gynecologic Oncology Physician 207VX0201X 34770 MN Primary
Gynecology Physician 207VG0400X 34770 MN
Obstetrics & Gynecology Physician 207V00000X 34770 MN

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

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MN
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
I20100323000961 MN Practitioner - Gynecological Oncology 2365577780 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Gynecological Oncology
Education
University of Vermont College of Medicine, 1987
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mayo ClinicGroup PAC ID 6507778255, 4,829 clinicians

Practice addresses (Care Compare)

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

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of the uterus1-10

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Mayo Clinic CurrentSince Apr 1, 1999 Accepting new patients
Mayo Clinic CurrentSince Apr 1, 1999 Accepting new patients

Locations

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

Interoperability endpoints

  • Direct secure messaging: wcliby132479@ehrdirect.mayoclinicmsg.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 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": "1137110400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772064000000",
    "number": "1205815636",
    "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": [],
    "basic": {
        "last_name": "CLIBY",
        "first_name": "WILLIAM",
        "middle_name": "A",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-13",
        "last_updated": "2026-02-26",
        "certification_date": "2026-02-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207VX0201X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Gynecologic Oncology",
            "state": "MN",
            "license": "34770",
            "primary": true
        },
        {
            "code": "207VG0400X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Gynecology",
            "state": "MN",
            "license": "34770",
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "MN",
            "license": "34770",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Rochester, MN

Sources for this page

Verify at the official NPI Registry.