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Dr. William Patrick O'Brien, D.D.S.

Dentist in Saint Peter, MN · enumerated 2006 · practices at Riverside Dental Care,LLC.

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

National Provider Identifier

1326125196

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Registry record

Entity type Individual (Type 1)
Name Dr. William Patrick O'Brien
Credential D.D.S.
Sex Male
Practice address 217 Nassau St, Saint Peter, MN, 56082
Phone (507) 931-5646
Fax (507) 934-0148
Enumeration date Nov 1, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

122300000X Dentist Dental Providers · License 7835 (MN) 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
32300OB Other MN BCBS MEDICAL ID NUMBER

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 O'Brien's NPI record?
Cross-check NPI 1326125196 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1326125196 active?
Yes, as of the latest NPPES snapshot, NPI 1326125196 is active (record last updated 2007-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.