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

Internal Medicine

William B. Workman, DO

Works at hospitals in Battle Creek, MI · Paw Paw, MI · Kalamazoo, MI … · Michigan

Summary

William B. Workman, DO (Internal Medicine) is listed by Medicare at 4 hospitals in Battle Creek, MI, Paw Paw, MI and Kalamazoo, MI and other places. NPI 1407110257. 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 B. Workman, 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
YesOffers telehealth
14Years since medical school (graduated 2012)
Michigan State University College Of Osteopathic MedicineMedical school
MaleGender (as listed)
Bronson Methodist HospitalGroup practice (+1 more)

Quick answers

Which hospitals does William B. Workman work at?
Medicare's official clinician data lists William B. Workman at 4 hospitals: Bronson Battle Creek Hospital, Bronson Lakeview Hospital, Bronson Methodist Hospital and Oaklawn Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does William B. Workman see patients?
Medicare's clinician data lists 2 practice locations, including Portage, MI and Battle Creek, MI. Call before your visit to confirm the address.
What is William B. Workman's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does William B. Workman accept Medicare assignment?
Yes. Medicare's clinician data says William B. Workman 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 William B. Workman offer telehealth?
Medicare's clinician data says William B. Workman offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for William B. Workman?
(269) 324-4141, as listed in official Medicare / NPI Registry data.
What is William B. Workman's NPI number?
1407110257. 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 B. Workman works

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

Group practices

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

  • Bronson Methodist Hospital729 clinicians in the group
  • Bronson Battle Creek Hospital193 clinicians in the group

Specialties

Find other Internal Medicine doctors in Michigan →

Other internal medicine doctors in Portage

Clinicians with the same Medicare primary specialty in Portage, MI — not a recommendation.

All internal medicine doctors in Portage →

Clinician information

CredentialDO
Medical schoolMichigan State University College Of Osteopathic Medicine
Graduation year2012
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1407110257
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