Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Billy Randall Machen, DDS PA

Dentist in Little Rock, AR · enumerated 2006.

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

National Provider Identifier

1457426991

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Registry record

Entity type Individual (Type 1)

Name Dr. Billy Randall Machen

Credential DDS PA

Sex Male

Practice address 4220 N Rodney Parham Rd, Suite 200, Little Rock, AR, 72212

Phone (501) 954-9900

Fax (501) 661-0066

Enumeration date Nov 21, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

122300000X Dentist Dental Providers · License DAR2779 (AR) Primary

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 1457426991 active?

Yes, as of the latest NPPES snapshot, NPI 1457426991 is active (record last updated 2007-07-08).

How do I verify Billy Machen's NPI record?

Cross-check NPI 1457426991 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 2007-07-08.