Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alan I. Fields, M.D.

Q: What is the NPI number for Alan Fields?

The National Provider Identifier (NPI) for Alan Fields is 1538253414, a Type 1 (individual) record in the CMS NPPES registry.

Pediatric Critical Care Medicine Physician in Houston, TX · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1538253414

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Registry record

Entity type Individual (Type 1)

Name Alan I. Fields

Credential M.D.

Sex Male

Practice address 1515 Holcombe Blvd, Houston, TX, 77030

Phone (713) 792-6161

Enumeration date Oct 3, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

2080P0203X Pediatric Critical Care Medicine Physician Allopathic & Osteopathic Physicians · License L3644 (TX) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Alan Fields?

The National Provider Identifier (NPI) for Alan Fields is 1538253414, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alan Fields practice?

The practice location on file with NPPES is in Houston, TX. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.