Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Bill William C Johnston, DDS

General Practice Dentistry in Monroe, LA · enumerated 2007 · practices at Leigh Ann Robinson DDS LLC.

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

National Provider Identifier

1194932665

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Registry record

Entity type Individual (Type 1)

Name Dr. Bill William C Johnston

Credential DDS

Sex Male

Practice address Monroe, LA, 71201

Phone (318) 361-0381

Fax (318) 388-4598

Enumeration date May 16, 2007

Last updated in NPPES Jul 23, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 003840 (LA) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier	Type	State	Issuer
943422420	Other	LA	APDC

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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Bill William Johnston?

Bill William Johnston is registered in NPPES with the primary taxonomy of General Practice Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Leigh Ann Robinson DDS LLC General Practice Dentistry · Monroe, LA NPI 1083557722

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-23.