Quick answers
- Which hospitals does Benjamin J. Armstrong work at?
- Medicare's official clinician data lists Benjamin J. Armstrong at 5 hospitals: Avera McKennan Hospital & University Health Center, Lakes Regional Healthcare, Palo Alto County Hospital, Pocahontas Community Hospital and Spencer Municipal Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Benjamin J. Armstrong see patients?
- Medicare's clinician data lists 5 practice locations, including Spencer, IA, Windom, MN and Spirit Lake, IA. Call before your visit to confirm the address.
- What is Benjamin J. Armstrong's specialty?
- Medicare lists Certified Registered Nurse Anesthetist (CRNA) as the primary specialty.
- Does Benjamin J. Armstrong accept Medicare assignment?
- Yes. Medicare's clinician data says Benjamin J. Armstrong 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 Benjamin J. Armstrong?
- (712) 264-8300, as listed in official Medicare / NPI Registry data.
- What is Benjamin J. Armstrong's NPI number?
- 1174845564. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Benjamin J. Armstrong works
Medicare's Facility Affiliation Data lists Benjamin J. Armstrong at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Avera McKennan Hospital & University Health CenterSioux Falls, SD · Acute Care Hospital · CCN 430016
- Lakes Regional HealthcareSpirit Lake, IA · Acute Care Hospital · CCN 160124
- Palo Alto County HospitalEmmetsburg, IA · Critical Access Hospital · CCN 161357
- Pocahontas Community HospitalPocahontas, IA · Critical Access Hospital · CCN 161305
- Spencer Municipal HospitalSpencer, IA · Acute Care Hospital · CCN 160112
Practice locations
Addresses where Benjamin J. Armstrong is enrolled with Medicare (CMS data updated 2026-10-02).
- 1200 1st Ave ESpencer, IA 51301 (712) 264‑8300
- 2150 Hospital DrWindom, MN 56101
- 2301 Hwy 71Spirit Lake, IA 51360
- 2301 Hwy 71, Suite CSpirit Lake, IA 51360 (712) 336‑3750
- 3201 1st StEmmetsburg, IA 50536 (712) 852‑5500
Group practices
Medicare enrollment lists Benjamin J. Armstrong as a member of these groups (CMS data updated 2026-10-02).
- Spencer Municipal Hospital92 clinicians in the group
- Lakes Regional Healthcare38 clinicians in the group
- Windom Area Hospital21 clinicians in the group
- Northwest Iowa Anesthesia Associates10 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Iowa →
Other nurse anesthetists in Spencer
Clinicians with the same Medicare primary specialty in Spencer, IA — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1174845564 |
| 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