William Patrick O'Brien, D.D.S.
Dentist · Saint Peter, MN
William Patrick O'Brien, D.D.S. is a dentist with a practice address in Saint Peter, Minnesota, and NPI 1326125196, issued on Nov 1, 2006. Check the license (Minnesota 7835, as entered in NPPES) with the Minnesota board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Patrick O'Brien
- Credential
- D.D.S.
- Primary taxonomy
- Dentist 122300000X
- License number
- 7835 MN
Self-reported in NPPES; status is on the state search - Practice location
- 217 Nassau St, Saint Peter, MN 56082
- Phone
- (507) 931-5646
- Enumerated
- Nov 1, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (507) 934-0148
- Entity
- Type 1 · individual
8 nearest dentist records → All 1,794 in Minnesota → Look up another NPI →
Also registered at 217 Nassau St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Dahleen, D.D.S.Dentist1306923164
- Kyle Rasmussen, DDSDentist1003306952
- Bethany Whittier, D.D.S.Dentist1790166270
Verify William Patrick O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Minnesota board licenses this profession
Search for license 7835Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Patrick O'Brien among 1,794 dentist records in Minnesota
William Patrick O'Brien, D.D.S. is one of 1,794 dentist records with a practice address in Minnesota. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 66% newer
- In a Medicare fileNo · 62% of these records are
- In the CMS Doctors and Clinicians fileNo · 1% of these records are
- Record last updated2007 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 dentist records list a practice address in Saint Peter
They are 7 of the 274 NPPES records with a practice address in Saint Peter, and 1,794 dentist records in Minnesota. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,794 in Minnesota → Every provider in Saint Peter → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Neil Anderson, DDSSaint Peter, MN 560821669564100
- Robert Dahleen, D.D.S.Saint Peter, MN 560821306923164
- Mikkel Haugen, D.D.S.St Peter, MN 560821235578519
- Sang Lee, DDSSaint Peter, MN 560821659399889
- Jennifer Miller, DDSSt Peter, MN 560821871544940
- Jay Ranfranz, D.D.S.Saint Peter, MN 560821982018008
- Kyle Rasmussen, DDSSaint Peter, MN 560821003306952
- Mary Snyder, DDSSt Peter, MN 560821962517037
Common questions
What is William Patrick O'Brien, D.D.S.'s NPI number?
William Patrick O'Brien, D.D.S.'s National Provider Identifier (NPI) is 1326125196, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Patrick O'Brien, D.D.S. located?
The NPPES record lists a practice address at 217 Nassau St, Saint Peter, MN, 56082. Phone: (507) 931-5646. Providers update this record themselves, so call before visiting.
How can I verify William Patrick O'Brien, D.D.S.'s license?
NPPES lists Minnesota license number 7835, as entered by the provider. Search the Minnesota board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.