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Family Practice

Dean N. Defrees, MD

Works at hospitals in La Grande, OR · Nampa, ID · Boise, ID … · Oregon, Idaho

Summary

Dean N. Defrees, MD (Family Practice) is listed by Medicare at 5 hospitals in La Grande, OR, Nampa, ID and Boise, ID and other places. NPI 1073924361. 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 Dean N. Defrees, 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
12Years since medical school (graduated 2014)
Oregon Health Sciences University School Of MedicineMedical school
MaleGender (as listed)
St Lukes Clinic-Treasure Valley LLCGroup practice (+2 more)

Quick answers

Which hospitals does Dean N. Defrees work at?
Medicare's official clinician data lists Dean N. Defrees at 5 hospitals: Grande Ronde Hospital, St Luke's Nampa Medical Center, St Luke's Regional Medical Center, St. Alphonsus Medical Center - Baker City and Wallowa Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Dean N. Defrees see patients?
Medicare's clinician data lists 3 practice locations, including Halfway, OR, Baker City, OR and Enterprise, OR. Call before your visit to confirm the address.
What is Dean N. Defrees's specialty?
Medicare lists Family Practice as the primary specialty.
Does Dean N. Defrees accept Medicare assignment?
Yes. Medicare's clinician data says Dean N. Defrees 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 Dean N. Defrees?
(541) 742-5023, as listed in official Medicare / NPI Registry data.
What is Dean N. Defrees's NPI number?
1073924361. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Dean N. Defrees works

Medicare's Facility Affiliation Data lists Dean N. Defrees 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 Dean N. Defrees is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Dean N. Defrees as a member of these groups (CMS data updated 2026-10-02).

  • St Lukes Clinic-Treasure Valley LLC1,173 clinicians in the group
  • Wallowa County Health Care District28 clinicians in the group
  • Pine Eagle Health Planning Committee3 clinicians in the group

Specialties

Find other Family Practice doctors in Oregon →

Other family doctors in Oregon

Clinicians with the same Medicare primary specialty in Oregon — not a recommendation.

All family doctors in Oregon →

Clinician information

CredentialMD
Medical schoolOregon Health Sciences University School Of Medicine
Graduation year2014
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1073924361
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