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Dr. Gwendolyn Joyce Mcginnis, MD, MCR

Radiation Oncology Physician in Thornton, CO · enumerated 2013.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1326471194

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Registry record

Entity type Individual (Type 1)
Name Dr. Gwendolyn Joyce Mcginnis
Credential MD, MCR
Sex Female
Practice address 8820 Huron St, Thornton, CO, 80260
Phone (303) 386-7658
Fax (303) 487-9350
Enumeration date Aug 15, 2013
Last updated in NPPES Aug 5, 2025

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License MD214617 (OR) Secondary
2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License DR.0075042 (CO) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
500822996 Medicaid OR -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What specialty is Gwendolyn Mcginnis?
Gwendolyn Mcginnis is registered in NPPES with the primary taxonomy of Radiation Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-05.