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

Emergency Medicine

William Heegaard, MD

Works at hospitals in Fargo, ND · Minneapolis, MN · North Dakota, Minnesota

Summary

William Heegaard, MD (Emergency Medicine) is listed by Medicare at 2 hospitals in Fargo, ND and Minneapolis, MN. NPI 1871537449. 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 Heegaard, 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

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
35Years since medical school (graduated 1991)
University Of Minnesota Medical SchoolMedical school
MaleGender (as listed)
Hennepin Healthcare System IncGroup practice (+1 more)

Quick answers

Which hospitals does William Heegaard work at?
Medicare's official clinician data lists William Heegaard at 2 hospitals: Essentia Health and Hennepin County Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does William Heegaard see patients?
Medicare's clinician data lists 2 practice locations, including Fargo, ND and Minneapolis, MN. Call before your visit to confirm the address.
What is William Heegaard's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does William Heegaard accept Medicare assignment?
Yes. Medicare's clinician data says William Heegaard 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 Heegaard?
(701) 364-8000, as listed in official Medicare / NPI Registry data.
What is William Heegaard's NPI number?
1871537449. 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 Heegaard works

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

Group practices

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

  • Hennepin Healthcare System Inc871 clinicians in the group
  • Innovis Health LLC559 clinicians in the group

Specialties

Find other Emergency Medicine doctors in North Dakota →

Other emergency medicine doctors in Fargo

Clinicians with the same Medicare primary specialty in Fargo, ND — not a recommendation.

All emergency medicine doctors in Fargo →

Clinician information

CredentialMD
Medical schoolUniversity Of Minnesota Medical School
Graduation year1991
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1871537449
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