Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Timothy A Diller, M.D.

Surgery Physician in Jacksonville, AR · enumerated 2006.

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

National Provider Identifier

1205899481

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Registry record

Entity type Individual (Type 1)

Name Dr. Timothy A Diller

Credential M.D.

Sex Male

Practice address 1400 Braden St, Emergency Dept, Jacksonville, AR, 72076

Phone (501) 985-7000

Enumeration date Apr 10, 2006

Last updated in NPPES Jun 19, 2012

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 4301044283 (MI) Primary

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License T2007-006 (AR) 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
786546	Other	AR	HEALTHLINK
P01027351	Other	-	RAILROAD MCARD
07100015600	Other	AR	QC
5086184	Other	AR	AETNA
164478001	Medicaid	AR	-

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 1205899481 active?

Yes, as of the latest NPPES snapshot, NPI 1205899481 is active (record last updated 2012-06-19).

How do I verify Timothy Diller's NPI record?

Cross-check NPI 1205899481 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 2012-06-19.