Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Family Practice

James S. Irwin, MD

Works at hospitals in Jerome, ID · Twin Falls, ID · Idaho

Summary

James S. Irwin, MD (Family Practice) is listed by Medicare at 2 hospitals in Jerome, ID and Twin Falls, ID. NPI 1023007465. 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 James S. Irwin, 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

Family PracticePrimary specialty
YesAccepts Medicare assignment
46Years since medical school (graduated 1980)
University Of Utah School Of MedicineMedical school
MaleGender (as listed)
St Lukes Clinic LLCGroup practice

Quick answers

Which hospitals does James S. Irwin work at?
Medicare's official clinician data lists James S. Irwin at 2 hospitals: St Luke's Jerome and St Lukes Magic Valley Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does James S. Irwin see patients?
Medicare's clinician data lists 3 practice locations, including Jerome, ID and Twin Falls, ID. Call before your visit to confirm the address.
What is James S. Irwin's specialty?
Medicare lists Family Practice as the primary specialty.
Does James S. Irwin accept Medicare assignment?
Yes. Medicare's clinician data says James S. Irwin 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 James S. Irwin?
(208) 814-9800, as listed in official Medicare / NPI Registry data.
What is James S. Irwin's NPI number?
1023007465. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where James S. Irwin works

Medicare's Facility Affiliation Data lists James S. Irwin 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 James S. Irwin is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists James S. Irwin as a member of this group (CMS data updated 2026-10-02).

  • St Lukes Clinic LLC316 clinicians in the group

Specialties

Find other Family Practice doctors in Idaho →

Other family doctors in Jerome

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

All family doctors in Jerome →

Clinician information

CredentialMD
Medical schoolUniversity Of Utah School Of Medicine
Graduation year1980
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1023007465
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