NPPES file of Aug 9, 2026

Alonso Marron

Pediatric Critical Care Medicine Physician · Corpus Christi, TX

Alonso Marron is a pediatric critical care medicine physician with a practice address in Corpus Christi, Texas, and NPI 1073010633, issued on Apr 10, 2018. Check the license (Texas V3376, 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
1073010633
Name
Alonso Marron
Primary taxonomy
Pediatric Critical Care Medicine Physician 2080P0203X
License numbers
V3376 TX
63184 TN
Self-reported in NPPES; status is on the state search
Practice location
3533 S Alameda St, Corpus Christi, TX 78411
Phone
(361) 694-5000
Enumerated
Apr 10, 2018
Record last updated
Jun 13, 2025
Medicare enrollment
Enrolled (PECOS I20240820004435); accepts Medicare assignment
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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Also registered at 3533 S Alameda St

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

  1. Umair Abbas, M.D.Pediatrics Physician1417335654
  2. Jessica Aber, MSN, APRN, CPNP-ACCritical Care Pediatric Nurse Practitioner1538912704
  3. Nnamdi Abuah, MDPediatrics Physician1164161501
  4. Manar AbushkhaeidemStudent in an Organized Health Care Education/Training Program1356281448
  5. Daniel Acosta, CPNP-ACAcute Care Nurse Practitioner1083506919
  6. Hector Aguilar Sabillon, M.D.Pediatric Pulmonology Physician1194177444

Verify Alonso Marron in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license V3376
    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. Children's Physician Services OF South TexasCorpus Christi, TX

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

Alonso Marron among 373 pediatric critical care medicine physician records in Texas

Alonso Marron is one of 373 pediatric critical care medicine physician records with a practice address in Texas. 39% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 87% of them.

  • NPI issued2018 · 87% of these records are older, 9% newer
  • In a Medicare fileYes · 39% of these records are
  • In the CMS Doctors and Clinicians fileYes · 31% of these records are
  • Graduated2018 · median 2009 among the 114 with a school on file
  • Record last updated2025 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0203X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Critical Care Medicine Physician providers in Texas

There are 373 pediatric critical care medicine physician records in Texas.

The 8 pediatric critical care medicine physician records with the nearest ZIP codes

  1. Ernesto Fernandez, MDCorpus Christi, TX 784111891189494
  2. Ali HasanCorpus Christi, TX 784111639522121
  3. Meghana KovvuriCorpus Christi, TX 784111023597424
  4. Scott Leopold, M.D.Corpus Christi, TX 784111437425436
  5. John Maher, M.D.Corpus Christi, TX 784111760443451
  6. Kathy Mendieta, M.DCorpus Christi, TX 784111316328107
  7. Ramon Rivera, M.D.Corpus Christi, TX 784111457312191
  8. Kevin Schooler, M.D.Corpus Christi, TX 784111932283678

Common questions

What is Alonso Marron's NPI number?

Alonso Marron's National Provider Identifier (NPI) is 1073010633, issued on Apr 10, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Alonso Marron located?

The NPPES record lists a practice address at 3533 S Alameda St, Corpus Christi, TX, 78411. Phone: (361) 694-5000. Providers update this record themselves, so call before visiting.

How can I verify Alonso Marron's license?

NPPES lists Texas license number V3376, 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.

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.