Pierre August Rioux, M.D.
Psychiatry Physician · Austin, MN
Pierre August Rioux, M.D. is a psychiatry physician with a practice address in Austin, Minnesota, and NPI 1164406807, issued on Dec 6, 2005. Check the license (Minnesota 44253, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Pierre August Rioux
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 44253 MN
Self-reported in NPPES; status is on the state search - Practice location
- 1000 1St Dr NW, Austin, MN 55912
- Phone
- (507) 434-1092
- Enumerated
- Dec 6, 2005
- Record last updated
- Oct 8, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (507) 434-1477
- Medicaid ID
- 922793800 MN
- Medicare enrollment
- Enrolled (PECOS I20100420000578); accepts Medicare assignment
- Medical or professional school
- University Of North Dakota School Of Medicine, 1981
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 974 in Minnesota → Look up another NPI →
Also registered at 1000 1St Dr NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christopher Alsager Lee, MDEmergency Medicine Physician1659802601
- Nicole Anderson, CRNACertified Registered Nurse Anesthetist1952373458
- Marissa Andrews, BSN, RN, SANERegistered Nurse1538968177
- Nazia Atique, MDInternal Medicine Physician1669785515
- Bradley Bachmeier, PHARMDPharmacist1992903603
Verify Pierre August Rioux in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 44253Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average psychiatry physician in 2024
479 Medicare Part D claims for 99 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Olanzapine61 claims
- Quetiapine Fumarate36 claims
- Clonazepam32 claims
- Trazodone Hcl27 claims
- Aripiprazole25 claims
- Lorazepam24 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Mayo Clinic Health System-Southeast Minnesota RegionAustin, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Pierre August Rioux among 974 psychiatry physician records in Minnesota
Pierre August Rioux, M.D. is one of 974 psychiatry physician records with a practice address in Minnesota. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated1981 · median 2008 among the 528 with a school on file
- Record last updated2020 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Minnesota
There are 974 psychiatry physician records in Minnesota.
All 974 in Minnesota → Every provider in Austin → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Brian Hesler, M.D.Austin, MN 559121699949370
- Steven Kubas, M.D.Austin, MN 559121093799827
- Robert Morse, MDRochester, MN 559061659606499
- Maryline Alhajj, MDRochester, MN 559051063308377
- David Bauer, MDRochester, MN 559051518800119
- Bethany Berry, MDRochester, MN 559051194660761
- Sara Burgoa, MDRochester, MN 559051437099686
- Drew HicksRochester, MN 559051447194584
Common questions
What is Pierre August Rioux, M.D.'s NPI number?
Pierre August Rioux, M.D.'s National Provider Identifier (NPI) is 1164406807, issued on Dec 6, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Pierre August Rioux, M.D. located?
The NPPES record lists a practice address at 1000 1St Dr NW, Austin, MN, 55912. Phone: (507) 434-1092. Providers update this record themselves, so call before visiting.
How can I verify Pierre August Rioux, M.D.'s license?
NPPES lists Minnesota license number 44253, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Pierre August Rioux, M.D. prescribe under Medicare Part D?
In 2024, Pierre August Rioux, M.D. had 479 Medicare Part D claims for 99 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions 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.