NPPES file of Aug 9, 2026

Claire Larson Isbell, M.D.

Surgery Physician · Austin, TX

Claire Larson Isbell, M.D. is a surgery physician with a practice address in Austin, Texas, and NPI 1639333412, issued on Jul 11, 2008. Check the license (Texas N5182, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639333412
Name
Claire Larson Isbell
Credential
M.D.
Primary taxonomy
Surgery Physician 208600000X
License number
N5182 TX
Self-reported in NPPES; status is on the state search
Practice location
4310 James Casey St Ste 3C, Austin, TX 78745
Phone
(512) 244-0766
Enumerated
Jul 11, 2008
Record last updated
May 11, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(512) 244-1013
Medicare enrollment
Enrolled (PECOS I20110131000478); accepts Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In New Orleans, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest surgery physician records → All 2,192 in Texas → Look up another NPI →

Also registered at 4310 James Casey St Ste 3C

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Leah Andrews, FNP-C, RNFamily Nurse Practitioner1538575618
  2. Meredith Cohen, PA-CSurgical Physician Assistant1932852092
  3. Aileen Ebadat, M.D.Surgery Physician1306162805
  4. Joshua Fox, MDOrthopaedic Surgery Physician1760685366
  5. Lindsey Fujan, PTPhysical Therapist1932744166
  6. Alejandro Garcia, M.D.Surgery Physician1700943925

Verify Claire Larson Isbell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license N5182    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Cogent Healthcare OF Texas PAAustin, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Claire Larson Isbell among 2,192 surgery physician records in Texas

Claire Larson Isbell, M.D. is one of 2,192 surgery physician records with a practice address in Texas. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 54% of them.

  • NPI issued2008 · 54% of these records are older, 41% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2007 · median 2004 among the 1,350 with a school on file
  • Record last updated2021 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Texas

There are 2,192 surgery physician records in Texas.

All 2,192 in Texas → Every provider in Austin → Surgery Physician nationwide →

The 8 surgery physician records with the nearest ZIP codes

  1. Aileen Ebadat, M.D.Austin, TX 787451306162805
  2. David Folkers, M.D.Austin, TX 787451538265442
  3. Alejandro Garcia, M.D.Austin, TX 787451700943925
  4. Ernest Gonzalez, M.D.Austin, TX 787451700818416
  5. Shumaila Khawja, MDAustin, TX 787451326466384
  6. Frank Mitchell, MDAustin, TX 787451760421994
  7. So Youn ParkAustin, TX 787451487218202
  8. Harvey Worchel, M.D.Austin, TX 787451841271483

Common questions

What is Claire Larson Isbell, M.D.'s NPI number?

Claire Larson Isbell, M.D.'s National Provider Identifier (NPI) is 1639333412, issued on Jul 11, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Claire Larson Isbell, M.D. located?

The NPPES record lists a practice address at 4310 James Casey St Ste 3C, Austin, TX, 78745. Phone: (512) 244-0766. Providers update this record themselves, so call before visiting.

How can I verify Claire Larson Isbell, M.D.'s license?

NPPES lists Texas license number N5182, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.