Quick answers
- Does Geoffrey J. Mittelsteadt accept Medicare assignment?
- Yes. Medicare's clinician data says Geoffrey J. Mittelsteadt accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Geoffrey J. Mittelsteadt's NPI number?
- 1437315058. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Geoffrey J. Mittelsteadt works
Medicare's Facility Affiliation Data lists Geoffrey J. Mittelsteadt at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Mat-Su Regional Medical CenterPalmer, AK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 020006
Practice locations
Addresses where Geoffrey J. Mittelsteadt is enrolled with Medicare (CMS data updated October 2, 2026).
- 3125 E Meridian Park Loop, Suite 200Wasilla, AK 99654 (907) 561‑3211
- 3841 Piper St, Suite T100Anchorage, AK 99508 (907) 561‑3211
Group practices
Medicare enrollment lists Geoffrey J. Mittelsteadt as a member of this group (CMS data updated October 2, 2026).
- Alaska Heart Institute60 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Wasilla
Clinicians with the same Medicare primary specialty in Wasilla, AK — not a recommendation.
Other clinicians in Alaska Heart Institute
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| School | University Of Maryland School Of Medicine |
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437315058 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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