Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John W. Thomas, M.D.

Emergency Medicine Physician in Huntsville, AL · enumerated 2016.

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

National Provider Identifier

1649621574

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Registry record

Entity type Individual (Type 1)

Name Dr. John W. Thomas

Credential M.D.

Sex Male

Practice address 101 Sivley Rd Sw, Huntsville, AL, 35801

Phone (256) 265-9889

Fax (256) 265-9910

Enumeration date Jun 22, 2016

Last updated in NPPES Aug 5, 2019

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License MD.38424 (AL) Primary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License R5215 (TX) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License BP10057669 (TX) Secondary

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

Other identifiers

Identifier	Type	State	Issuer
BP10057669	Other	TX	TEXAS MEDICAL BOARD - PHYSICIAN IN TRAINING
MD.38424	Other	AL	ALABAMA MEDICAL BOARD OF MEDICAL EXAMINERS-FULL LICENSE
R5215	Other	TX	TEXAS MEDICAL BOARD - FULL LICENSE

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.

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Frequently asked questions

How do I verify John Thomas's NPI record?

Cross-check NPI 1649621574 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1649621574 active?

Yes, as of the latest NPPES snapshot, NPI 1649621574 is active (record last updated 2019-08-05).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-08-05.