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Internal Medicine

Nathan Gillis, DO

Works at hospitals in Nampa, ID · Boise, ID · Idaho

Summary

Nathan Gillis, DO (Internal Medicine) is listed by Medicare at 2 hospitals in Nampa, ID and Boise, ID. NPI 1144699505. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Nathan Gillis, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
11Years since medical school (graduated 2015)
MaleGender (as listed)
St Lukes Clinic-Treasure Valley LLCGroup practice

Quick answers

Which hospitals does Nathan Gillis work at?
Medicare's official clinician data lists Nathan Gillis at 2 hospitals: St Luke's Nampa Medical Center and St Luke's Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Nathan Gillis see patients?
Medicare's clinician data lists 5 practice locations, including Boise, ID and Meridian, ID. Call before your visit to confirm the address.
What is Nathan Gillis's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Nathan Gillis accept Medicare assignment?
Yes. Medicare's clinician data says Nathan Gillis 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 Nathan Gillis?
(208) 381-2983, as listed in official Medicare / NPI Registry data.
What is Nathan Gillis's NPI number?
1144699505. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Nathan Gillis works

Medicare's Facility Affiliation Data lists Nathan Gillis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Nathan Gillis is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Nathan Gillis as a member of this group (CMS data updated 2026-10-02).

  • St Lukes Clinic-Treasure Valley LLC1,173 clinicians in the group

Specialties

Find other Internal Medicine doctors in Idaho →

Other internal medicine doctors in Boise

Clinicians with the same Medicare primary specialty in Boise, ID — not a recommendation.

All internal medicine doctors in Boise →

Clinician information

CredentialDO
Graduation year2015
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1144699505
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians