Quick answers
- Which hospitals does Amy N. Vander Giessen work at?
- Medicare's official clinician data lists Amy N. Vander Giessen at 1 hospital: St Peters Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Amy N. Vander Giessen see patients?
- Medicare's clinician data lists 1 practice location in Helena, MT. Call before your visit to confirm the address.
- What is Amy N. Vander Giessen's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Amy N. Vander Giessen accept Medicare assignment?
- Yes. Medicare's clinician data says Amy N. Vander Giessen 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 Amy N. Vander Giessen?
- (406) 447-2828, as listed in official Medicare / NPI Registry data.
- What is Amy N. Vander Giessen's NPI number?
- 1649022872. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Amy N. Vander Giessen works
Medicare's Facility Affiliation Data lists Amy N. Vander Giessen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St Peters HealthHelena, MT · Acute Care Hospital · CCN 270003
Practice locations
Addresses where Amy N. Vander Giessen is enrolled with Medicare (CMS data updated 2026-10-02).
- 2550 E Broadway StHelena, MT 59601 (406) 447‑2828
Group practices
Medicare enrollment lists Amy N. Vander Giessen as a member of this group (CMS data updated 2026-10-02).
- St Peters Health199 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Helena
Clinicians with the same Medicare primary specialty in Helena, MT — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2024 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649022872 |
| 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