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Geriatric Medicine

John Trimberger, MD

Works at hospitals in Milwaukee, WI · Wisconsin

Summary

John Trimberger, MD (Geriatric Medicine) is listed by Medicare at 1 hospital in Milwaukee, WI. NPI 1649616335. 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 John Trimberger, 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

Geriatric MedicinePrimary specialty
YesAccepts Medicare assignment
13Years since medical school (graduated 2013)
MaleGender (as listed)
16th Street Community Health Center Inc.Group practice

Quick answers

Which hospitals does John Trimberger work at?
Medicare's official clinician data lists John Trimberger at 1 hospital: Aurora St Lukes Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John Trimberger see patients?
Medicare's clinician data lists 2 practice locations, including Milwaukee, WI. Call before your visit to confirm the address.
What is John Trimberger's specialty?
Medicare lists Geriatric Medicine as the primary specialty.
Does John Trimberger accept Medicare assignment?
Yes. Medicare's clinician data says John Trimberger 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 John Trimberger?
(414) 672-1353, as listed in official Medicare / NPI Registry data.
What is John Trimberger's NPI number?
1649616335. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John Trimberger works

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

Group practices

Medicare enrollment lists John Trimberger as a member of this group (CMS data updated 2026-10-02).

  • 16th Street Community Health Center Inc.85 clinicians in the group

Specialties

Find other Geriatric Medicine doctors in Wisconsin →

Other geriatricians in Milwaukee

Clinicians with the same Medicare primary specialty in Milwaukee, WI — not a recommendation.

All geriatricians in Milwaukee →

Clinician information

CredentialMD
Graduation year2013
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1649616335
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