Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark W Coburn, MD

Diagnostic Radiology Physician in Round Rock, TX · enumerated 2007.

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

National Provider Identifier

1811035694

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark W Coburn

Credential MD

Sex Male

Practice address 300 University Blvd, Round Rock, TX, 78665

Phone (512) 509-0100

Fax (512) 218-6330

Enumeration date Feb 2, 2007

Last updated in NPPES Dec 4, 2025

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License MD61603753 (WA) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License N4357 (TX) Primary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 108365 (MO) Secondary

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
173098	Other	MO	MO BLUE SHIELD
140791001	Medicaid	AR	-
205007503	Medicaid	MO	-
98569	Other	AR	ARK BLUE SHIELD

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 Mark Coburn's NPI record?

Cross-check NPI 1811035694 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1811035694 active?

Yes, as of the latest NPPES snapshot, NPI 1811035694 is active (record last updated 2025-12-04).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-04.