NPI Portal NPI Lookup & Verification

Mr. William G Anspach, DDS

Mr. William G Anspach is a Endodontics provider (Dentist) practicing in Carson City, NV, registered in the NPPES registry with NPI 1417085952 since 2007. The credential DDS stands for Doctor of Dental Surgery.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1417085952
Entity type Individual (Type 1)
Name Mr. William G Anspach
Credential DDS
Sex Male
Practice address Carson City, NV, 89703
Phone 7758833434
Fax 7758859985
Enumeration date 2007-02-28
Last updated in NPPES 2026-05-10

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
1223E0200X Endodontics Primary S716 NV

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

Copy-ready billing details
Provider: William Anspach, DDS
NPI: 1417085952
Taxonomy: 1223E0200X (Endodontics)
Address: Carson City, NV, 89703

Other providers at this practice address

NPI Name Type Specialty Location
1801812631 John Sutton Individual Endocrinology, Diabetes & Metabolism Physician Carson City, NV
1154525939 Jared Buck Individual Endodontics Carson City, NV
1790003853 Jared T Buck DDS Ltd Organization Endodontics Carson City, NV
1407291412 Carson Tahoe Endocrinology LLC Organization Endocrinology, Diabetes & Metabolism Physician Carson City, NV

Verify this record

Cross-check NPI 1417085952 against the authoritative CMS record: view Mr. William G Anspach on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How do I verify William Anspach's NPI record?
Cross-check NPI 1417085952 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1417085952 active?
Yes — as of the latest NPPES snapshot, NPI 1417085952 is active (record last updated 2026-05-10).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-05-10.