Quick answers
- Does Heather S. Hammerstedt accept Medicare assignment?
- Yes. Medicare's clinician data says Heather S. Hammerstedt 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.
- How many Medicare patients does Heather S. Hammerstedt see?
- In 2024, CMS data shows 221 Original Medicare patients and 364 services for Heather S. Hammerstedt. This counts Original Medicare only and measures volume, not quality.
- What is Heather S. Hammerstedt's NPI number?
- 1275621104. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Heather S. Hammerstedt, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 221 |
|---|---|
| Services billed to Medicare | 364 |
| Different services or procedures | 25 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Emergency department visit with high level of medical decision making (99285)138 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)107 services
- Emergency department visit with moderate level of medical decision making (99284)59 services
- Critical care, first 30-74 minutes (99291)35 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol66%
- Arthritis47%
- Depression46%
- Anxiety44%
- Diabetes38%
Hospitals where Heather S. Hammerstedt works
Medicare's Facility Affiliation Data lists Heather S. Hammerstedt 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.
- PeaceHealth St Joseph Medical CenterBellingham, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 500030
- Saint Alphonsus Medical Center - NampaNampa, ID · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 130013
- Saint Alphonsus Medical Center OntarioOntario, OR · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 380052
- Saint Alphonsus Regional Medical CenterBoise, ID · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 130007
- Wesley Medical CenterWichita, KS · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 170123
Practice locations
Addresses where Heather S. Hammerstedt is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 1055 N Curtis RdBoise, ID 83706 (208) 367‑2121
- 12273 W McMillan RdBoise, ID 83713 (208) 302‑5500
- 2610 N Woodlawn BlvdWichita, KS 67220 (316) 858‑2610
- 2901 Sqaulicum PkwyBellingham, WA 98225 (360) 734‑5400
- 351 SW 9th StOntario, OR 97914 (541) 881‑7000
Group practices
Medicare enrollment lists Heather S. Hammerstedt as a member of these groups (CMS data updated October 2, 2026).
- Franciscan Medical Group1,421 clinicians in the group
- Cep America LLC1,023 clinicians in the group
- Saint Alphonsus Regional Medical Center Inc680 clinicians in the group
- Northwest Emergency Physicians LLC271 clinicians in the group
- CarePoint Emergency Medicine Kansas LLC81 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Boise
Clinicians with the same Medicare primary specialty in Boise, ID — not a recommendation.
Other clinicians in Franciscan Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Temple University School Of Medicine |
| Graduation year | 2004 (22 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1275621104 |
| 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
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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