Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christopher Owen Ruud, M.D.

Medical Oncology Physician in Austin, TX · enumerated 2006.

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

National Provider Identifier

1124089412

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Registry record

Entity type Individual (Type 1)

Name Dr. Christopher Owen Ruud

Credential M.D.

Sex Male

Practice address 901 W 38th St Ste 200, Austin, TX, 78705

Phone (512) 421-4100

Enumeration date Mar 28, 2006

Last updated in NPPES Aug 18, 2014

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License F5732 (TX) Secondary

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License F5732 (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
PO1279577	Other	TX	RAILROAD MEDICARE
137861420	Medicaid	TX	-
137861417	Medicaid	TX	-
830008565	Other	TX	RR/MEDICARE
1378614-14	Other	TX	CSHCN
137861421	Medicaid	TX	-
8G5397	Other	TX	BLUE SHIELD
P01279580	Other	TX	RAILROAD MEDICARE

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

How do I verify Christopher Ruud's NPI record?

Cross-check NPI 1124089412 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1124089412 active?

Yes, as of the latest NPPES snapshot, NPI 1124089412 is active (record last updated 2014-08-18).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-18.