DR. JOHN JOSEPH TRIMBERGER M.D.
NPI 1649616335
Family Medicine - Geriatric Medicine in Milwaukee, WI
About Dr. John Joseph Trimberger M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN JOSEPH TRIMBERGER M.D. (NPI 1649616335) is an individual geriatric medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (67617) and active in the NPI registry since May 2013. He is enrolled in Medicare PECOS, is affiliated with Aurora St Lukes Medical Center, and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. John Joseph Trimberger M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show John Trimberger reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53215
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: 16th Street Community Health Center Inc.
- 147 clinicians in this Medicare group
Milwaukee, WI 53211
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Columbia St Marys Hospital Milwaukee Inc
- 856 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Aurora St Lukes Medical Center
Acute Care Hospitals · Milwaukee, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53215 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MILWAUKEE, WI 53215
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Trimberger's NPI number?
The NPI number for John Trimberger is 1649616335. It was assigned to this individual provider in the NPPES registry on May 21, 2013.
Where is John Trimberger located?
John Trimberger practices at 2906 S 20th St, Milwaukee, WI 53215. The listed phone number is (414) 672-1353.
What is John Trimberger's specialty?
The primary specialty registered for this NPI is Family Medicine, specializing in Geriatric Medicine, with taxonomy code 207QG0300X.
Is John Trimberger enrolled in Medicare?
Yes. John Trimberger is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for John Trimberger's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Trimberger reassigns Medicare benefits to 2 organizations: Sixteenth Street Community Health Centers, Inc. (Milwaukee, WI) and Columbia St. Mary's Hospital Milwaukee, Inc (Milwaukee, WI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Trimberger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Trimberger accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and Network Health and 1 other insurer list John Trimberger as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is John Trimberger affiliated with any hospitals?
According to CMS data, John Trimberger is affiliated with Aurora St Lukes Medical Center.
When was this NPI record last updated?
The NPPES record for John Trimberger was last updated on July 10, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. John Joseph Trimberger, M.D. · NPI 1649616335
Geriatric Medicine physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since May 21, 2013.
## Identity
- **NPI:** 1649616335 (Entity type: Individual)
- **Enumerated:** May 21, 2013
- **Primary specialty:** Family Medicine - Geriatric Medicine · taxonomy 207QG0300X
- **State license:** 67617 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 2906 S 20TH ST, Milwaukee, WI 53215-3732
- **Phone:** (414) 672-1353 · **Fax:** (414) 672-4265
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Sixteenth Street Community Health Centers, Inc. (NPI 1518092410, Milwaukee, WI); Columbia St. Mary's Hospital Milwaukee, Inc (NPI 1023064482, Milwaukee, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** July 10, 2017
- **Other identifiers:** Medicaid 1649616335 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1649616335) · Data from the CMS NPPES public registry.