Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christopher Ryan Deig, M.D.

Radiation Oncology Physician in Denver, CO · enumerated 2017.

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

National Provider Identifier

1043743883

Verified

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Registry record

Entity type Individual (Type 1)

Name Christopher Ryan Deig

Credential M.D.

Sex Male

Practice address 1721 E 19th Ave, #520, Denver, CO, 80218

Phone (812) 449-1243

Enumeration date Apr 8, 2017

Last updated in NPPES Dec 4, 2023

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License MD202827 (OR) Primary

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License DR.0072211 (CO) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 1043743883 active?

Yes, as of the latest NPPES snapshot, NPI 1043743883 is active (record last updated 2023-12-04).

How do I verify Christopher Deig's NPI record?

Cross-check NPI 1043743883 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-04.