NPPES file of Aug 9, 2026

Alan I. Fields, M.D.

Pediatric Critical Care Medicine Physician · Houston, TX

Alan I. Fields, M.D. is a pediatric critical care medicine physician with a practice address in Houston, Texas, and NPI 1538253414, issued on Oct 3, 2006. Check the license (Texas L3644, as entered in NPPES) on the Texas Medical Board; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1538253414
Name
Alan I. Fields
Credential
M.D.
Primary taxonomy
Pediatric Critical Care Medicine Physician 2080P0203X
License number
L3644 TX
Self-reported in NPPES; status is on the state search
Practice location
1515 Holcombe Blvd, Houston, TX 77030
Phone
(713) 792-6161
Enumerated
Oct 3, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest pediatric critical care medicine physician records → All 373 in Texas → Look up another NPI →

Also registered at 1515 Holcombe Blvd

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

  1. Ashley Aaroe, MDNeurology Physician1902295793
  2. Linda Abad, PA-CPhysician Assistant1063928240
  3. Cynthia Abarado, RN, GNPGerontology Nurse Practitioner1851471049
  4. Hussein Abbas, MD, PHDInternal Medicine Physician1609220532
  5. James Abbruzzese, M.D.Medical Oncology Physician1134233224
  6. Karim Abdeldaem, MDEmergency Medicine Physician1558056200

Verify Alan I. Fields in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license L3644    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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Alan I. Fields among 373 pediatric critical care medicine physician records in Texas

Alan I. Fields, M.D. 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 not. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 69% newer
  • In a Medicare fileNo · 39% of these records are
  • In the CMS Doctors and Clinicians fileNo · 31% of these records are
  • Record last updated2007 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 373 in Texas → Every provider in Houston → Pediatric Critical Care Medicine Physician nationwide →

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

  1. Kenneth Brady, M.D.Houston, TX 770301720170665
  2. Paul Checchia, MDHouston, TX 770301902822125
  3. Jose Cortes, M.D.Houston, TX 770301215036124
  4. Beatrize Cua, M.D.Houston, TX 770301780625566
  5. Ikram Haque, MDHouston, TX 770301609897396
  6. Mary Mariscalco, MDHouston, TX 770301174603575
  7. Matthew Musick, MDHouston, TX 770301013018936
  8. Regina Okhuysen-Cawley, MDHouston, TX 770301275623837

Common questions

What is Alan I. Fields, M.D.'s NPI number?

Alan I. Fields, M.D.'s National Provider Identifier (NPI) is 1538253414, issued on Oct 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Alan I. Fields, M.D. located?

The NPPES record lists a practice address at 1515 Holcombe Blvd, Houston, TX, 77030. Phone: (713) 792-6161. Providers update this record themselves, so call before visiting.

How can I verify Alan I. Fields, M.D.'s license?

NPPES lists Texas license number L3644, 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. 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.