Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jon L Caldwell, M.D.

Family Medicine Physician in Amarillo, TX · enumerated 2006.

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

National Provider Identifier

1558318865

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Registry record

Entity type Individual (Type 1)

Name Dr. Jon L Caldwell

Credential M.D.

Sex Male

Practice address 1215 S Coulter St, Suite 100, Amarillo, TX, 79106

Phone (806) 359-4701

Fax (806) 353-0091

Enumeration date May 30, 2006

Last updated in NPPES Oct 31, 2017

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License G3207 (TX) Primary

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
109734100	Other	TX	FIRSTCARE
4018083	Other	TX	AETNA
080087648	Other	TX	RR MEDICARE
874026	Other	TX	BCBS
114767001	Medicaid	TX	-

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

Is NPI 1558318865 active?

Yes, as of the latest NPPES snapshot, NPI 1558318865 is active (record last updated 2017-10-31).

How do I verify Jon Caldwell's NPI record?

Cross-check NPI 1558318865 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-10-31.