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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ace H. Alsup III, M.D.

Internal Medicine Physician in Austin, TX · enumerated 2005.

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

National Provider Identifier

1265434880

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Registry record

Entity type Individual (Type 1)
Name Dr. Ace H. Alsup III
Credential M.D.
Sex Male
Practice address 3407 Glenview Ave, Austin, TX, 78703
Phone (512) 459-3149
Fax (512) 459-6974
Enumeration date Aug 12, 2005
Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License D9342 (TX) Primary
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.

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Frequently asked questions

How do I verify Ace Alsup's NPI record?
Cross-check NPI 1265434880 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1265434880 active?
Yes, as of the latest NPPES snapshot, NPI 1265434880 is active (record last updated 2007-07-09).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.