Quick answers
- Where does Stephen C. Martinez see patients?
- Medicare's clinician data lists 2 practice locations, including Nampa, ID and Boise, ID. Call before your visit to confirm the address.
- What is Stephen C. Martinez's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Stephen C. Martinez accept Medicare assignment?
- Yes. Medicare's clinician data says Stephen C. Martinez 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 Stephen C. Martinez?
- (208) 809-2869, as listed in official Medicare / NPI Registry data.
- What is Stephen C. Martinez's NPI number?
- 1154362804. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Stephen C. Martinez is enrolled with Medicare (CMS data updated 2026-10-02).
- 1375 N Happy Valley RdNampa, ID 83687 (208) 809‑2869
- 6052 W State StBoise, ID 83703 (208) 947‑1947
Group practices
Medicare enrollment lists Stephen C. Martinez as a member of this group (CMS data updated 2026-10-02).
- Alliance Medical Group LLC133 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Nampa
Clinicians with the same Medicare primary specialty in Nampa, ID — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wisconsin College Of Physicians And Surgeons |
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154362804 |
| 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
- 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