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Internal Medicine

William Y. Childs, MD

Works at hospitals in Big Sky, MT · Bozeman, MT · Libby, MT … · Montana

Summary

William Y. Childs, MD (Internal Medicine) is listed by Medicare at 4 hospitals in Big Sky, MT, Bozeman, MT and Libby, MT and other places. NPI 1083648000. 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 William Y. Childs, 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
35Years since medical school (graduated 1991)
Michigan State University College Of Osteopathic MedicineMedical school
MaleGender (as listed)
Bozeman Health Deaconess HospitalGroup practice (+1 more)

Quick answers

Which hospitals does William Y. Childs work at?
Medicare's official clinician data lists William Y. Childs at 4 hospitals: Bozeman Health Big Sky Medical Center, Bozeman Health Deaconess Hospital, Cabinet Peaks Medical Center and St James Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does William Y. Childs see patients?
Medicare's clinician data lists 2 practice locations, including Libby, MT and Bozeman, MT. Call before your visit to confirm the address.
What is William Y. Childs's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Hospice/Palliative Care and Hospitalist.
Does William Y. Childs accept Medicare assignment?
Yes. Medicare's clinician data says William Y. Childs 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 William Y. Childs?
(406) 283-7000, as listed in official Medicare / NPI Registry data.
What is William Y. Childs's NPI number?
1083648000. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where William Y. Childs works

Medicare's Facility Affiliation Data lists William Y. Childs 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 William Y. Childs is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists William Y. Childs as a member of these groups (CMS data updated 2026-10-02).

  • Bozeman Health Deaconess Hospital320 clinicians in the group
  • St Johns Lutheran Hospital Inc34 clinicians in the group

Specialties

Find other Internal Medicine doctors in Montana →

Other internal medicine doctors in Libby

Clinicians with the same Medicare primary specialty in Libby, MT — not a recommendation.

All internal medicine doctors in Libby →

Clinician information

CredentialMD
Medical schoolMichigan State University College Of Osteopathic Medicine
Graduation year1991
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1083648000
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