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

Internal Medicine

Michael R. Williams, MD

Works at hospitals in Westminster, CO · Colorado

Summary

Michael R. Williams, MD (Internal Medicine) is listed by Medicare at 1 hospital in Westminster, CO. NPI 1982676706. 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 Michael R. Williams, 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
28Years since medical school (graduated 1998)
University Of California, Geffen School Of MedicineMedical school
MaleGender (as listed)
Colorado Permanente Medical Group PCGroup practice

Quick answers

Which hospitals does Michael R. Williams work at?
Medicare's official clinician data lists Michael R. Williams at 1 hospital: Centura Health-St Anthony North Health Campus. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Michael R. Williams see patients?
Medicare's clinician data lists 1 practice location in Lafayette, CO. Call before your visit to confirm the address.
What is Michael R. Williams's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Michael R. Williams accept Medicare assignment?
Yes. Medicare's clinician data says Michael R. Williams 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 Michael R. Williams?
(303) 338-4545, as listed in official Medicare / NPI Registry data.
What is Michael R. Williams's NPI number?
1982676706. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Michael R. Williams works

Medicare's Facility Affiliation Data lists Michael R. Williams 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 Michael R. Williams is enrolled with Medicare (CMS data updated 2026-10-02).

  • 200 Emempla Circle, Kp Intermountain Health Good Samaritan HospLafayette, CO 80026 (303) 338‑4545

Group practices

Medicare enrollment lists Michael R. Williams as a member of this group (CMS data updated 2026-10-02).

  • Colorado Permanente Medical Group PC1,327 clinicians in the group

Specialties

Find other Internal Medicine doctors in Colorado →

Other internal medicine doctors in Lafayette

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

All internal medicine doctors in Lafayette →

Clinician information

CredentialMD
Medical schoolUniversity Of California, Geffen School Of Medicine
Graduation year1998
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1982676706
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