NPPES file of Aug 9, 2026

Carol Lynn Ziebert, M.D.

Critical Care Medicine (Internal Medicine) Physician · Austin, TX

Carol Lynn Ziebert, M.D. is a critical care medicine (internal medicine) physician with a practice address in Austin, Texas, and NPI 1003849431, issued on Jul 9, 2006. Check the license (Texas J5262, 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
1003849431
Name
Carol Lynn Ziebert
Credential
M.D.
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
J5262 TX
Self-reported in NPPES; status is on the state search
Practice location
1305 W 34TH St, Austin, TX 78705
Phone
(512) 459-6599
Enumerated
Jul 9, 2006
Record last updated
Feb 19, 2024
Fax
(512) 459-8496
Medicaid ID
103413401 TX
Medicare enrollment
Enrolled (PECOS I20100211000323); accepts Medicare assignment
Medical or professional school
Texas Tech University Health Science Center School Of Medicine, 1990
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 critical care medicine (internal medicine) physician records → All 413 in Texas → Look up another NPI →

Also registered at 1305 W 34TH St

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

  1. Mark Clark, M.D.Specialist1376568691
  2. William Deaton, M.D.Pulmonary Disease Physician1962435461
  3. Wesley Glazener, M.D.Pediatrics Physician1104880301
  4. Mary Jones, R.N., M.S.N., F.N.P.Family Nurse Practitioner1104961804
  5. Nancy Loomis, CNPAdvanced Practice Midwife1811904113
  6. Felicia Nash, MDObstetrics & Gynecology Physician1427093095

Verify Carol Lynn Ziebert in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license J5262    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

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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).

Carol Lynn Ziebert among 413 critical care medicine (internal medicine) physician records in Texas

Carol Lynn Ziebert, M.D. is one of 413 critical care medicine (internal medicine) physician records with a practice address in Texas. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 70% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 84% of these records are
  • Graduated1990 · median 2007 among the 346 with a school on file
  • Record last updated2024 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in Texas

There are 413 critical care medicine (internal medicine) physician records in Texas.

All 413 in Texas → Every provider in Austin → Critical Care Medicine (Internal Medicine) Physician nationwide →

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Paul Harford, M.D.Austin, TX 787051710902036
  2. John Hinze, D.O.Austin, TX 787051013933019
  3. Andrew Kitcher, M.D.Austin, TX 787051467603563
  4. Koonj Shah, MDAustin, TX 787051316193907
  5. Matthew Anderson, MDAustin, TX 787271023221959
  6. Harold Cain, M.D.Austin, TX 787271225031669
  7. Laura Gilbey, M.D.Austin, TX 787271932102316
  8. Thaw Sint, MDAustin, TX 787271891893186

Common questions

What is Carol Lynn Ziebert, M.D.'s NPI number?

Carol Lynn Ziebert, M.D.'s National Provider Identifier (NPI) is 1003849431, issued on Jul 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Carol Lynn Ziebert, M.D. located?

The NPPES record lists a practice address at 1305 W 34TH St, Austin, TX, 78705. Phone: (512) 459-6599. Providers update this record themselves, so call before visiting.

How can I verify Carol Lynn Ziebert, M.D.'s license?

NPPES lists Texas license number J5262, 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.