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Dr. Claire Larson Isbell, M.D.

Surgery Physician in Austin, TX · enumerated 2008.

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

National Provider Identifier

1639333412

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Registry record

Entity type Individual (Type 1)
Name Dr. Claire Larson Isbell
Credential M.D.
Sex Female
Practice address 4310 James Casey St Ste 3c, Austin, TX, 78745
Phone (512) 244-0766
Fax (512) 244-1013
Enumeration date Jul 11, 2008
Last updated in NPPES May 11, 2021

Taxonomy & licenses

2086S0102X Surgical Critical Care Physician Allopathic & Osteopathic Physicians · License N5182 (TX) Secondary
208600000X Surgery Physician Allopathic & Osteopathic Physicians · License N5182 (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 Claire Isbell's NPI record?
Cross-check NPI 1639333412 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1639333412 active?
Yes, as of the latest NPPES snapshot, NPI 1639333412 is active (record last updated 2021-05-11).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-11.