Quick answers
- Which hospitals does Brett J. Olson work at?
- Medicare's official clinician data lists Brett J. Olson at 4 hospitals: Avera Heart Hospital of South Dakota, Avera Holy Family Hospital, Lakes Regional Healthcare and Spencer Municipal Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Brett J. Olson see patients?
- Medicare's clinician data lists 2 practice locations, including Spirit Lake, IA. Call before your visit to confirm the address.
- What is Brett J. Olson's specialty?
- Medicare lists Family Practice as the primary specialty, and also Emergency Medicine.
- Does Brett J. Olson accept Medicare assignment?
- Yes. Medicare's clinician data says Brett J. Olson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Brett J. Olson?
- (712) 336-3750, as listed in official Medicare / NPI Registry data.
- What is Brett J. Olson's NPI number?
- 1346211646. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Brett J. Olson works
Medicare's Facility Affiliation Data lists Brett J. Olson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Avera Heart Hospital of South DakotaSioux Falls, SD · Acute Care Hospital · CCN 430095
- Avera Holy Family HospitalEstherville, IA · Critical Access Hospital · CCN 161351
- Lakes Regional HealthcareSpirit Lake, IA · Acute Care Hospital · CCN 160124
- Spencer Municipal HospitalSpencer, IA · Acute Care Hospital · CCN 160112
Practice locations
Addresses where Brett J. Olson is enrolled with Medicare (CMS data updated 2026-10-02).
- 2301 Hwy 71Spirit Lake, IA 51360
- 2301 Hwy 71, Suite CSpirit Lake, IA 51360 (712) 336‑3750
Group practices
Medicare enrollment lists Brett J. Olson as a member of this group (CMS data updated 2026-10-02).
- Lakes Regional Healthcare38 clinicians in the group
Specialties
- Family Practiceprimary
- Emergency Medicinealso
Other family doctors in Spirit Lake
Clinicians with the same Medicare primary specialty in Spirit Lake, IA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Iowa, Rj & L Carver College Of Medicine |
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346211646 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians