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

Family Practice

Donald D. Regier, MD

Works at hospitals in Holyoke, CO · Julesburg, CO · Sidney, NE … · Colorado, Nebraska

Summary

Donald D. Regier, MD (Family Practice) is listed by Medicare at 4 hospitals in Holyoke, CO, Julesburg, CO and Sidney, NE and other places. NPI 1164439535. 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 Donald D. Regier, 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
41Years since medical school (graduated 1985)
University Of Kansas School Of Med (kc/wich/sal)Medical school
MaleGender (as listed)
Sedgwick County Memorial HospitalGroup practice

Quick answers

Which hospitals does Donald D. Regier work at?
Medicare's official clinician data lists Donald D. Regier at 4 hospitals: Melissa Memorial Hospital, Sedgwick County Memorial Hospital, Sidney Regional Medical Center and Sterling Regional Medcenter. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Donald D. Regier see patients?
Medicare's clinician data lists 1 practice location in Julesburg, CO. Call before your visit to confirm the address.
What is Donald D. Regier's specialty?
Medicare lists Family Practice as the primary specialty.
Does Donald D. Regier accept Medicare assignment?
Yes. Medicare's clinician data says Donald D. Regier 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 Donald D. Regier?
(970) 474-3323, as listed in official Medicare / NPI Registry data.
What is Donald D. Regier's NPI number?
1164439535. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Donald D. Regier works

Medicare's Facility Affiliation Data lists Donald D. Regier 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 Donald D. Regier is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Donald D. Regier as a member of this group (CMS data updated 2026-10-02).

  • Sedgwick County Memorial Hospital12 clinicians in the group

Specialties

Find other Family Practice doctors in Colorado →

Other family doctors in Julesburg

Clinicians with the same Medicare primary specialty in Julesburg, CO — not a recommendation.

All family doctors in Julesburg →

Clinician information

CredentialMD
Medical schoolUniversity Of Kansas School Of Med (kc/wich/sal)
Graduation year1985
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1164439535
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