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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Chad Ryan Wiersema, DDS

Endodontics in Homewood, IL · enumerated 2006 · practices at Endodontic & Periodontic Associates, Ltd.

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

National Provider Identifier

1427114115

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Registry record

Entity type Individual (Type 1)
Name Mr. Chad Ryan Wiersema
Credential DDS
Sex Male
Practice address 18130 Halsted St, Homewood, IL, 60430
Phone (708) 799-2550
Enumeration date Dec 28, 2006
Last updated in NPPES Mar 1, 2012

Taxonomy & licenses

122300000X Dentist Dental Providers · License 019026244 (IL) Secondary
122300000X Dentist Dental Providers · License 12010886A (IN) Secondary
1223E0200X Endodontics Dental Providers · License 021002195 (IL) 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

Is NPI 1427114115 active?
Yes, as of the latest NPPES snapshot, NPI 1427114115 is active (record last updated 2012-03-01).
How do I verify Chad Wiersema's NPI record?
Cross-check NPI 1427114115 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 2012-03-01.