NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Brennen Scott Cheek, M.D.

Radiation Oncology Physician in Dallas, TX · enumerated 2006.

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

National Provider Identifier

1124066139

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Brennen Scott Cheek
Credential M.D.
Sex Male
Practice address 3410 Worth St, Dallas, TX, 75246
Phone (214) 370-1400
Fax (214) 370-1405
Enumeration date Jun 2, 2006
Last updated in NPPES Dec 17, 2019

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License J8488 (TX) 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
103656805 Medicaid TX -
103656806 Medicaid TX -
103656803 Medicaid TX -
8R1407 Other TX BLUE CROSS OF TEXAS
103656804 Medicaid TX -

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1124066139 active?
Yes, as of the latest NPPES snapshot, NPI 1124066139 is active (record last updated 2019-12-17).
How do I verify Brennen Cheek's NPI record?
Cross-check NPI 1124066139 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-12-17.