Theresa Oey-Trudeau, MD
Surgery Physician · Brookings, SD
Theresa Oey-Trudeau, MD is a surgery physician with a practice address in Brookings, South Dakota, and NPI 1285839787, issued on Jun 15, 2007. Check the license (South Dakota 8556, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.
- Name
- Theresa Oey-Trudeau
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 8556 SD
Self-reported in NPPES; status is on the state search - Practice location
- 400 22ND Ave, Brookings, SD 57006
- Phone
- (605) 697-9500
- Enumerated
- Jun 15, 2007
- Record last updated
- Sep 2, 2022
- Fax
- (605) 697-6939
- Medicare enrollment
- Enrolled (PECOS I20120928000653); accepts Medicare assignment
- Medical or professional school
- Sanford School Of Medicine Of University Of South Dakota, 2007
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 114 in South Dakota → Look up another NPI →
Also registered at 400 22ND Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jennifer AndersonFamily Nurse Practitioner1851797948
- Terrence Babb, M.D.Obstetrics & Gynecology Physician1427168764
- Janine Bassett, CNPFamily Nurse Practitioner1568461804
- Matt Bien, MDPediatrics Physician1972553949
Verify Theresa Oey-Trudeau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic Examiners
Search for license 8556Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average surgery physician in 2024
425 Medicare Part D claims for 109 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Omeprazole188 claims
- Pantoprazole Sodium141 claims
- Sucralfate45 claims
- Oxycodone Hcl13 claims
- Esomeprazole Magnesium11 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
- City OF BrookingsBrookings, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Theresa Oey-Trudeau among 114 surgery physician records in South Dakota
Theresa Oey-Trudeau, MD is one of 114 surgery physician records with a practice address in South Dakota. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 58% of them.
- NPI issued2007 · 58% of these records are older, 32% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2007 · median 2006 among the 72 with a school on file
- Record last updated2022 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in South Dakota
There are 114 surgery physician records in South Dakota.
All 114 in South Dakota → Every provider in Brookings → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Jeffrey Johnson, M.D.Brookings, SD 570061316978976
- Robert Summerer, D.O.Madison, SD 570421558544536
- Robert Anderson, MDDakota Dunes, SD 570491831165307
- Larry Foster, MDDakota Dunes, SD 570491740256213
- James Hegvik, MDDakota Dunes, SD 570491780099135
- Paul Johnson, MDDakota Dunes, SD 570491578539540
- Craig Nemechek, MDDakota Dunes, SD 570491063508331
- William Rizk, MDDakota Dunes, SD 570491659347128
Common questions
What is Theresa Oey-Trudeau, MD's NPI number?
Theresa Oey-Trudeau, MD's National Provider Identifier (NPI) is 1285839787, issued on Jun 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Theresa Oey-Trudeau, MD located?
The NPPES record lists a practice address at 400 22ND Ave, Brookings, SD, 57006. Phone: (605) 697-9500. Providers update this record themselves, so call before visiting.
How can I verify Theresa Oey-Trudeau, MD's license?
NPPES lists South Dakota license number 8556, as entered by the provider. Search the South Dakota Board of Medical and Osteopathic Examiners at https://www.sdbmoe.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Theresa Oey-Trudeau, MD prescribe under Medicare Part D?
In 2024, Theresa Oey-Trudeau, MD had 425 Medicare Part D claims for 109 beneficiaries; the average among surgery physician prescribers was 147. 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.