Individual provider Active NPI

Gwendolyn Joyce McGinnis, MD, MCR

  • Radiation Oncology Physician
  • Thornton, CO
National Provider Identifier
1326471194
Registry record updated Aug 5, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Radiation Oncology PhysicianTaxonomy code 2085R0001X
License
DR.0075042 Issued in CO
Practice address
8820 Huron St
Thornton, CO 80260-6805
Phone
(303) 386-7658
Fax
(303) 487-9350
NPI assigned
Aug 15, 2013
Last updated
Aug 5, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 5, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Radiation Oncology Physician 2085R0001X MD214617 OR
Radiation Oncology Physician 2085R0001X DR.0075042 CO Primary

Addresses

Primary practice location

8820 Huron St
Thornton, CO 80260-6805

Mailing address

8820 Huron St
Thornton, CO 80260-6805
Phone (033) 867-6583

Other identifiers 1

IdentifierTypeStateIssuer
500822996MedicaidOR

Other names 1

  • Dr. Wendy McGinnis Other name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OR, CO2 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
I20230724001388 OR Practitioner - Radiation Oncology 9436406972 Reassigns benefits to 1 organization
I20250617000567 CO Practitioner - Radiation Oncology 9436406972 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Radiation Oncology
Education
Oregon Health Sciences University School of Medicine, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Rocky Mountain Cancer Centers LLPGroup PAC ID 7012820533, 131 clinicians

Practice addresses (Care Compare)

8820 Huron St
Thornton, CO 80260-6805
Phone (303) 386-7622

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
MD214617ORMDRadiation Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
The Oregon Clinic PC CurrentSince Jul 31, 2023 Accepting new patients
The Oregon Clinic, PC CurrentSince Jul 31, 2023 Accepting new patients
Rocky Mountain Cancer Centers LLP Radiation Oncology Current Accepting new patients
Rocky Mountain Cancer Centers, LLP CurrentSince Jul 21, 2025 Accepting new patients
Rocky Mountain Cancer Centers LLP Radiation Oncology CurrentSince Jul 21, 2025 Accepting new patients

Locations

1700 S Potomac St
Aurora, CO 80012
Phone (303) 418-7600

4715 Arapahoe Ave
Boulder, CO 80303
Phone (303) 385-2000

3027 N Circle Dr
Colorado Springs, CO 80909
Phone (719) 577-2555

22 W Dry Creek Cir
Littleton, CO 80120
Phone (303) 730-4700

10103 Ridgegate Pkwy
Ste G01
Lone Tree, CO 80124
Phone (303) 925-0700

8820 Huron St
Thornton, CO 80260
Phone (303) 386-7622

4805 NE Glisan St
Portland, OR 97213
Phone (503) 215-1111

5050 NE Hoyt St
Ste 655
Portland, OR 97213
Phone (503) 239-6673

541 NE 20th Ave
Ste 225
Portland, OR 97232
Phone (503) 963-2801

847 NE 19th Ave
Ste 300
Portland, OR 97232

9205 SW Barnes Rd
Lowr
Portland, OR 97225
Phone (503) 216-2195

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, 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": "1376524800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754352000000",
    "number": "1326471194",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8820 HURON ST",
            "city": "THORNTON",
            "state": "CO",
            "postal_code": "802606805",
            "telephone_number": "033-867-6583"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8820 HURON ST",
            "city": "THORNTON",
            "state": "CO",
            "postal_code": "802606805",
            "telephone_number": "303-386-7658",
            "fax_number": "303-487-9350"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCGINNIS",
        "first_name": "GWENDOLYN",
        "middle_name": "JOYCE",
        "name_prefix": "Dr.",
        "credential": "MD, MCR",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-08-15",
        "last_updated": "2025-08-05",
        "certification_date": "2025-08-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "OR",
            "license": "MD214617",
            "primary": false
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "CO",
            "license": "DR.0075042",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "500822996",
            "state": "OR"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "WENDY",
            "last_name": "MCGINNIS",
            "prefix": "DR.",
            "credential": "MD",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in Thornton, CO

Sources for this page

Verify at the official NPI Registry.