Individual provider Active NPI

Karen M Gremminger, M.D.

  • Hematology & Oncology Physician
  • Globe, AZ
National Provider Identifier
1174668404
Registry record updated Jun 13, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
64504 Issued in AZ
Practice address
5880 S Hospital Dr
Globe, AZ 85501-9447
Phone
(928) 425-3261
NPI assigned
Feb 21, 2007
Last updated
Jun 13, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 13, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Hematology & Oncology Physician 207RH0003X 38760 WI
Hematology & Oncology Physician 207RH0003X 64504 AZ Primary

Addresses

Primary practice location

5880 S Hospital Dr
Globe, AZ 85501-9447

Mailing address

122 E College Ave
Appleton, WI 54911-5794
Phone (920) 996-3264

Other practice location 1

491 S Washburn St
Oshkosh, WI 54904-6733
Phone (920) 292-5555

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in AZ, TX2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20210909003593 AZ Practitioner - Medical OncologyPractitioner - Internal Medicine 3678545902 Reassigns benefits to 2 organizations
I20211012002914 TX Practitioner - Hematology/Oncology 3678545902 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Hematology/Oncology
Education
Texas Tech University Health Science Center School of Medicine, 1991
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

103 Medicine Way Rd
Peridot, AZ 85542-0787
Phone (928) 475-1400

5880 S Hospital Dr
Globe, AZ 85501-9447
Phone (928) 425-3261

P O Box
Suite 787
Peridot, AZ 85542-0787

PO Box
Suite 787
Peridot, AZ 85542-0787

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
64504AZMDHematology & Oncology Physician
38760WIMDHematology & Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
San Carlos Apache Healthcare Corporation CurrentSince Oct 6, 2021 Accepting new patients
San Carlos Apache Healthcare Corporation CurrentSince Oct 6, 2021 Accepting new patients
Cobre Valley Regional Medical Center CurrentSince Sep 7, 2021 Accepting new patients
Cobre Valley Regional Medical Center CurrentSince Nov 12, 2025 Accepting new patients
Cobre Valley Regional Medical Center CurrentSince Sep 7, 2021 Accepting new patients
Cobre Valley Regional Medical Center Family Medicine Past Accepting new patients

Locations

5880 S Hospital Dr
Globe, AZ 85501
Phone (928) 402-1217

5990 S Hospital Dr
Globe, AZ 85501
Phone (520) 402-9319

5994 S Hospital Dr
Globe, AZ 85501
Phone (928) 425-7108

103 Medicine Way Rd
Peridot, AZ 85542
Phone (928) 475-1200

1134 W US Highway 60
Superior, AZ 85173
Phone (520) 689-2423

Organizations & group practices 6

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": "1172016000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749772800000",
    "number": "1174668404",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "122 E COLLEGE AVE",
            "city": "APPLETON",
            "state": "WI",
            "postal_code": "549115794",
            "telephone_number": "920-996-3264",
            "fax_number": "920-830-5910"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5880 S HOSPITAL DR",
            "city": "GLOBE",
            "state": "AZ",
            "postal_code": "855019447",
            "telephone_number": "928-425-3261"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "491 S Washburn St",
            "address_purpose": "LOCATION",
            "city": "Oshkosh",
            "state": "WI",
            "postal_code": "549046733",
            "country_code": "US",
            "telephone_number": "920-292-5555",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GREMMINGER",
        "first_name": "KAREN",
        "middle_name": "M",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-02-21",
        "last_updated": "2025-06-13",
        "certification_date": "2025-06-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "WI",
            "license": "38760",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "AZ",
            "license": "64504",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Globe, AZ

Sources for this page

Verify at the official NPI Registry.