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Internal Medicine

Timothy J. Helder, MD

Works at hospitals in Grand Rapids, MI · Greenville, MI · Michigan

Summary

Timothy J. Helder, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Grand Rapids, MI and Greenville, MI. NPI 1306888367. 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 Timothy J. Helder, 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
26Years since medical school (graduated 2000)
Michigan State University College Of Human MedicineMedical school
MaleGender (as listed)
Spectrum Health UnitedGroup practice

Quick answers

Which hospitals does Timothy J. Helder work at?
Medicare's official clinician data lists Timothy J. Helder at 2 hospitals: Spectrum Health and Spectrum Health United Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Timothy J. Helder see patients?
Medicare's clinician data lists 2 practice locations, including Belding, MI and Greenville, MI. Call before your visit to confirm the address.
What is Timothy J. Helder's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Pediatric Medicine.
Does Timothy J. Helder accept Medicare assignment?
Yes. Medicare's clinician data says Timothy J. Helder 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 Timothy J. Helder?
(616) 794-0940, as listed in official Medicare / NPI Registry data.
What is Timothy J. Helder's NPI number?
1306888367. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Timothy J. Helder works

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

Group practices

Medicare enrollment lists Timothy J. Helder as a member of this group (CMS data updated 2026-10-02).

  • Spectrum Health United92 clinicians in the group

Specialties

Find other Internal Medicine doctors in Michigan →

Other internal medicine doctors in Michigan

Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.

All internal medicine doctors in Michigan →

Clinician information

CredentialMD
Medical schoolMichigan State University College Of Human Medicine
Graduation year2000
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1306888367
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