Corey Pieper, PHD
Clinical Psychologist · Onamia, MN
Corey Pieper, PHD is a clinical psychologist with a practice address in Onamia, Minnesota, and NPI 1841758935, issued on Mar 7, 2019. Check the license (Minnesota LP6379, as entered in NPPES) with the Minnesota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Corey Pieper
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- LP6379 MN
Self-reported in NPPES; status is on the state search - Practice location
- 200 Elm St N, Onamia, MN 56359
- Phone
- (320) 532-3154
- Enumerated
- Mar 7, 2019
- Record last updated
- Jul 20, 2022
- Fax
- (320) 532-3111
- Medicare enrollment
- Enrolled (PECOS I20190413000016); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 1,538 in Minnesota → Look up another NPI →
Also registered at 200 Elm St N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Corey Pieper in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Minnesota board licenses this profession
Search for license LP6379Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
One hospital affiliation
- Mille Lacs Health SystemOnamia, MN · Critical Access Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Corey Pieper among 1,538 clinical psychologist records in Minnesota
Corey Pieper, PHD is one of 1,538 clinical psychologist records with a practice address in Minnesota. 26% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 87% of them.
- NPI issued2019 · 87% of these records are older, 11% newer
- In a Medicare fileYes · 26% of these records are
- In the CMS Doctors and Clinicians fileYes · 33% of these records are
- Graduated2017 · median 2008 among the 510 with a school on file
- Record last updated2022 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Psychologist providers in Minnesota
There are 1,538 clinical psychologist records in Minnesota.
All 1,538 in Minnesota → Every provider in Onamia → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Mark Orth, LPMc Grath, MN 563501811149651
- Audrey Brandt Loer, MA, LPLong Prairie, MN 563471053585083
- Paul Springstead, PSY.D.Little Falls, MN 563451285793067
- Maggie Happe, PSYD, LPSartell, MN 563771871619718
- Susan Westerlind, PSY. D., LPWaite Park, MN 563871396914602
- Heather Anderson, LMFT, LPCold Spring, MN 563201710115860
- Elizabeth FlynnBrainerd, MN 564011396175105
- Marguerite Goulet, MA LPBrainerd, MN 564011295749786
Common questions
What is Corey Pieper, PHD's NPI number?
Corey Pieper, PHD's National Provider Identifier (NPI) is 1841758935, issued on Mar 7, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Corey Pieper, PHD located?
The NPPES record lists a practice address at 200 Elm St N, Onamia, MN, 56359. Phone: (320) 532-3154. Providers update this record themselves, so call before visiting.
How can I verify Corey Pieper, PHD's license?
NPPES lists Minnesota license number LP6379, 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. Medicare files from data.cms.gov. 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.