Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Anthony Dieck Jr., M.D.

Cardiovascular Disease Physician in Austin, TX · enumerated 2005.

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

National Provider Identifier

1427059310

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Registry record

Entity type Individual (Type 1)

Name John Anthony Dieck Jr.

Credential M.D.

Sex Male

Practice address 4316 James Casey St, Building A, Austin, TX, 78745

Phone (512) 623-5300

Fax (512) 623-5399

Enumeration date Aug 2, 2005

Last updated in NPPES Jun 24, 2011

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License G8081 (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
131632508	Medicaid	TX	-
P00706404	Other	TX	RAILROAD MEDICARE
060012108	Other	TX	MEDICARE RAILROAD
8BX076	Other	TX	BCBSTX
131632501	Medicaid	TX	-
131632507	Medicaid	TX	-
P00700180	Other	TX	MEDICARE RAILROAD

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 John Dieck's NPI record?

Cross-check NPI 1427059310 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1427059310 active?

Yes, as of the latest NPPES snapshot, NPI 1427059310 is active (record last updated 2011-06-24).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-24.