Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Alberto Lanza, DDS

Dentist in Riverdale Park, MD · enumerated 2007.

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

National Provider Identifier

1083896450

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Registry record

Entity type Individual (Type 1)

Name Dr. William Alberto Lanza

Credential DDS

Sex Male

Practice address 6200 Baltimore Avenue, Suite 200, Riverdale Park, MD, 20737

Phone (301) 864-5200

Fax (301) 864-5759

Enumeration date Nov 28, 2007

Last updated in NPPES Nov 28, 2007

Taxonomy & licenses

122300000X Dentist Dental Providers · License 14205 (MD) Primary

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

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

What is the NPI number for William Lanza?

The National Provider Identifier (NPI) for William Lanza is 1083896450, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Lanza practice?

The practice location on file with NPPES is in Riverdale Park, MD. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-28.