Robert J. Zwiener, MD
Pediatric Gastroenterology Physician · Austin, TX
Robert J. Zwiener, MD is a pediatric gastroenterology physician with a practice address in Austin, Texas, and NPI 1598717936, issued on May 16, 2006. Check the license (Texas G5808, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Robert J. Zwiener
- Credential
- MD
- Primary taxonomy
- Pediatric Gastroenterology Physician 2080P0206X
- License number
- G5808 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1301 Barbara Jordan Blvd Ste 200, Austin, TX 78723
- Phone
- (512) 628-1810
- Enumerated
- May 16, 2006
- Record last updated
- Apr 8, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (512) 628-1811
- Medicaid ID
- 129357303 TX
- Entity
- Type 1 · individual
8 nearest pediatric gastroenterology physician records → All 190 in Texas → Look up another NPI →
Also registered at 1301 Barbara Jordan Blvd Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sireesha Chinthaparthi, MDNeurology with Special Qualifications in Child Neurology Physician1205276623
- Courtney Conlon, PNP-PCPediatric Nurse Practitioner1215588975
- Lucia Diaz, M.D.Pediatric Dermatology Physician1043454515
- Rachel Downey, APRN, CNS, CPNP-ACPediatric Nurse Practitioner1497423511
Verify Robert J. Zwiener in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license G5808Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 71 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $248.58
11 payments; by number, the most common kind was food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., Inc. The 1,184 providers of this specialty with any payment received $2,585.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Robert J. Zwiener among 190 pediatric gastroenterology physician records in Texas
Robert J. Zwiener, MD is one of 190 pediatric gastroenterology physician records with a practice address in Texas. 69% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 68% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 36% of these records are
- Record last updated2013 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0206X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Gastroenterology Physician providers in Texas
There are 190 pediatric gastroenterology physician records in Texas.
All 190 in Texas → Every provider in Austin → Pediatric Gastroenterology Physician nationwide →
The 8 pediatric gastroenterology physician records with the nearest ZIP codes
- Sandra CamachoAustin, TX 787231295130706
- Bharani Challa, M.D.Austin, TX 787231063617868
- Geoffrey Daves, MDAustin, TX 787231366948804
- David Easley, M.D.Austin, TX 787231639139488
- Dennis Heintz, M.D.Austin, TX 787231568673705
- Marisa Izaguirre, MDAustin, TX 787231851684401
- Trevor Laborda, M.D.Austin, TX 787231346650405
- Chantal Lucia Casadonte, M.D.Austin, TX 787231265781496
Common questions
What is Robert J. Zwiener, MD's NPI number?
Robert J. Zwiener, MD's National Provider Identifier (NPI) is 1598717936, issued on May 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert J. Zwiener, MD located?
The NPPES record lists a practice address at 1301 Barbara Jordan Blvd Ste 200, Austin, TX, 78723. Phone: (512) 628-1810. Providers update this record themselves, so call before visiting.
How can I verify Robert J. Zwiener, MD's license?
NPPES lists Texas license number G5808, 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.
What is Robert J. Zwiener, MD's MIPS final score?
The 2023 MIPS final score is 71 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.
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.