Quick answers
- Which hospitals does Michael Massaro work at?
- Medicare's official clinician data lists Michael Massaro at 3 hospitals: St Luke's Nampa Medical Center, St Luke's Regional Medical Center and St Lukes Magic Valley Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael Massaro see patients?
- Medicare's clinician data lists 7 practice locations, including Boise, ID, Meridian, ID and Twin Falls, ID. Call before your visit to confirm the address.
- What is Michael Massaro's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Michael Massaro accept Medicare assignment?
- Yes. Medicare's clinician data says Michael Massaro 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 Michael Massaro?
- (208) 381-2983, as listed in official Medicare / NPI Registry data.
- What is Michael Massaro's NPI number?
- 1043897481. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael Massaro works
Medicare's Facility Affiliation Data lists Michael Massaro at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St Luke's Nampa Medical CenterNampa, ID · Acute Care Hospital · CCN 130071
- St Luke's Regional Medical CenterBoise, ID · Acute Care Hospital · CCN 130006
- St Lukes Magic Valley Medical CenterTwin Falls, ID · Acute Care Hospital · CCN 130002
Practice locations
Addresses where Michael Massaro is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 100 E Bannock StBoise, ID 83712 (208) 381‑2983
- 190 E Bannock StBoise, ID 83712 (208) 381‑9384
- 520 S Eagle RdMeridian, ID 83642
- 608 W Hays StBoise, ID 83702 (208) 381‑5970
- 610 W Hays StBoise, ID 83702
Group practices
Medicare enrollment lists Michael Massaro as a member of these groups (CMS data updated 2026-10-02).
- St Lukes Clinic-Treasure Valley LLC1,173 clinicians in the group
- St Lukes Clinic LLC316 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Boise
Clinicians with the same Medicare primary specialty in Boise, ID — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Marian University College Of Osteopathic Medicine |
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1043897481 |
| 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