Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Chuck L Ball, MD

Internal Medicine Physician in Fort Defiance, AZ · enumerated 2008 · practices at Fort Defiance Indian Hospital Board, Inc.

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

National Provider Identifier

1821253535

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Registry record

Entity type Individual (Type 1)

Name Chuck L Ball

Credential MD

Sex Male

Practice address Corner of Route N12 and N7, Fort Defiance, AZ, 86504

Phone (928) 729-8000

Enumeration date Jul 22, 2008

Last updated in NPPES Jul 15, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 0101250915 (VA) 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
VAD000	Other	TN	FEDERAL UPIN
1821253535	Medicaid	VA	-
VV4469	Other	VA	MEDICARE

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

Is NPI 1821253535 active?

Yes, as of the latest NPPES snapshot, NPI 1821253535 is active (record last updated 2025-07-15).

How do I verify Chuck Ball's NPI record?

Cross-check NPI 1821253535 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 2025-07-15.