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

Dr. William John Zimmer, DDS

General Practice Dentistry in Beaufort, SC · enumerated 2006 · practices at Mark Waninger Dentistry.

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

National Provider Identifier

1720140064

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Registry record

Entity type Individual (Type 1)
Name Dr. William John Zimmer
Credential DDS
Sex Male
Practice address Beaufort, SC, 29906
Phone (843) 379-1007
Fax (843) 379-1008
Enumeration date Dec 14, 2006
Last updated in NPPES May 22, 2009

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

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 4164 (SC) 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.

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Frequently asked questions

How do I verify William Zimmer's NPI record?
Cross-check NPI 1720140064 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1720140064 active?
Yes, as of the latest NPPES snapshot, NPI 1720140064 is active (record last updated 2009-05-22).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-05-22.