Theresa Oey-Trudeau, MD
NPI 1285839787 · Surgery Physician · Brookings, SD
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Theresa Oey-Trudeau, MD is a Surgery Physician provider in Brookings, SD (NPI 1285839787).
Provider details
- NPI number
- 1285839787
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 8556 (SD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
609 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Removal of Polyps Or Growths of Large Bowel Using a Flexible Endoscope With Electrical Cautery45384 | 232 | $118 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 131 | $233 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 56 | $92 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 54 | $97 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 46 | $125 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 188 | 46 |
| Pantoprazole Sodium | 141 | 37 |
| Sucralfate | 45 | 13 |
| Oxycodone Hcl | 13 | 13 |
| Esomeprazole Magnesium | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-06-15
- Last updated
- 2022-09-02
- Certified
- 2022-09-02
Frequently asked questions
- What is Theresa Oey-Trudeau's NPI number?
- Theresa Oey-Trudeau's National Provider Identifier (NPI) is 1285839787, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theresa Oey-Trudeau's specialty?
- Theresa Oey-Trudeau is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Theresa Oey-Trudeau located?
- Theresa Oey-Trudeau's practice location on file with NPPES is 400 22nd Ave, Brookings, SD 57006-2497.
- What is Theresa Oey-Trudeau's phone number?
- The practice phone number listed in the NPPES registry for Theresa Oey-Trudeau is (605) 697-9500.
- Does Theresa Oey-Trudeau accept Medicare?
- Theresa Oey-Trudeau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Theresa Oey-Trudeau's NPI active?
- Yes — Theresa Oey-Trudeau's NPI (1285839787) is active in the NPPES registry as of the last update on 2022-09-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.