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

Hospitalist

James M. Dayton, MD

Works at hospitals in Madras, OR · Bend, OR · Prineville, OR · Oregon

Summary

James M. Dayton, MD (Hospitalist) is listed by Medicare at 3 hospitals in Madras, OR, Bend, OR and Prineville, OR. NPI 1679709711. 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 M. Dayton, 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

HospitalistPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
17Years since medical school (graduated 2009)
Oregon Health Sciences University School Of MedicineMedical school
MaleGender (as listed)
St Charles Health System IncGroup practice

Quick answers

Which hospitals does James M. Dayton work at?
Medicare's official clinician data lists James M. Dayton at 3 hospitals: St Charles Madras, St Charles Medical Center - Bend and St Charles Medical Center Prineville. This is where the clinician works or has privileges; call the hospital to confirm.
Where does James M. Dayton see patients?
Medicare's clinician data lists 4 practice locations, including Redmond, OR, Bend, OR and Prineville, OR. Call before your visit to confirm the address.
What is James M. Dayton's specialty?
Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
Does James M. Dayton accept Medicare assignment?
Yes. Medicare's clinician data says James M. Dayton 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.
Does James M. Dayton offer telehealth?
Medicare's clinician data says James M. Dayton offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for James M. Dayton?
(541) 548-8131, as listed in official Medicare / NPI Registry data.
What is James M. Dayton's NPI number?
1679709711. 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 M. Dayton works

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

Group practices

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

  • St Charles Health System Inc173 clinicians in the group

Specialties

Find other Hospitalist doctors in Oregon →

Other hospitalists in Redmond

Clinicians with the same Medicare primary specialty in Redmond, OR — not a recommendation.

All hospitalists in Redmond →

Clinician information

CredentialMD
Medical schoolOregon Health Sciences University School Of Medicine
Graduation year2009
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1679709711
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