JONATHAN AMRHEIN M.D.
NPI 1497102693
Emergency Medicine in Milwaukee, WI
About Jonathan Amrhein M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JONATHAN AMRHEIN M.D. (NPI 1497102693) is an individual emergency medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (71650) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, is affiliated with Ascension Columbia St Mary's Hospital Milwaukee, and maintains a secondary practice location in Chicago.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Jonathan Amrhein 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 Jonathan Amrhein reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Emergency Medicine Specialists Sc
- 244 clinicians in this Medicare group
Sturgeon Bay, WI 54235
- Reassigned Medicare billing, Wisconsin enrollment
- 131 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 5
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ascension Columbia St Mary's Hospital Milwaukee
Acute Care Hospitals · Milwaukee, WIAscension St Francis Hospital
Acute Care Hospitals · Milwaukee, WIAscension All Saints Hospital
Acute Care Hospitals · Racine, WIAscension SE Wisconsin Hospital
Acute Care Hospitals · Milwaukee, WIAscension Wisconsin Hosp Menomonee Falls Campus
Acute Care Hospitals · Menomonee Falls, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53210 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 53210
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 Jonathan Amrhein's NPI number?
The NPI number for Jonathan Amrhein is 1497102693. It was assigned to this individual provider in the NPPES registry on May 17, 2016.
Where is Jonathan Amrhein located?
Jonathan Amrhein practices at 5000 W Chambers St, Milwaukee, WI 53210. The listed phone number is (414) 447-2000.
What is Jonathan Amrhein's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Jonathan Amrhein enrolled in Medicare?
Yes. Jonathan Amrhein 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 Jonathan Amrhein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jonathan Amrhein reassigns Medicare benefits to 2 organizations: Emergency Medicine Specialists, S.C. (Milwaukee, WI) and Door County Memorial Hospital (Sturgeon Bay, 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 Jonathan Amrhein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jonathan Amrhein accept?
Health plans from CareSource (Common Ground Healthcare) list Jonathan Amrhein 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 Jonathan Amrhein affiliated with any hospitals?
According to CMS data, Jonathan Amrhein is affiliated with Ascension Columbia St Mary's Hospital Milwaukee, Ascension St Francis Hospital, Ascension All Saints Hospital, Ascension SE Wisconsin Hospital and Ascension Wisconsin Hosp Menomonee Falls Campus.
When was this NPI record last updated?
The NPPES record for Jonathan Amrhein was last updated on August 20, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Jonathan Amrhein, M.D. · NPI 1497102693
Emergency Medicine physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since May 17, 2016.
## Identity
- **NPI:** 1497102693 (Entity type: Individual)
- **Enumerated:** May 17, 2016
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 71650 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 5000 W CHAMBERS ST, Milwaukee, WI 53210-1650
- **Phone:** (414) 447-2000
## 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): Emergency Medicine Specialists, S.C. (NPI 1568413524, Milwaukee, WI); Door County Memorial Hospital (NPI 1093743874, Sturgeon Bay, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical College Of Wisconsin, class of 2016
## Record status
- **NPPES last updated:** August 20, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1497102693) · Data from the CMS NPPES public registry.