JOSEPH S BRANTMAN M.D.
NPI 1982090676
Emergency Medicine in Lake Geneva, WI
About Joseph S Brantman M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOSEPH S BRANTMAN M.D. (NPI 1982090676) is an individual emergency medicine provider in Lake Geneva, Wisconsin, licensed in Wisconsin (67362) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, is affiliated with Marshfield Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 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
Joseph S Brantman 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
17Medicare enrollment records show Joseph Brantman reassigns Medicare billing to 17 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pleasant Prairie, WI 53158
- Reassigned Medicare billing, Wisconsin enrollment
- 104 clinicians in this Medicare group
Janesville, WI 53548
- Reassigned Medicare billing, Wisconsin enrollment
- 1,155 clinicians in this Medicare group
West Allis, WI 53227
- Reassigned Medicare billing, Wisconsin enrollment
- 4,609 clinicians in this Medicare group
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- 3,983 clinicians in this Medicare group
Menomonee Falls, WI 53051
- Reassigned Medicare billing, Wisconsin enrollment
- 2,294 clinicians in this Medicare group
Juneau, WI 53039
- Reassigned Medicare billing, Wisconsin enrollment
- 1,447 clinicians in this Medicare group
Ripon, WI 54971
- Reassigned Medicare billing, Wisconsin enrollment
- 55 clinicians in this Medicare group
Manitowoc, WI 54220
- Reassigned Medicare billing, Wisconsin enrollment
- 350 clinicians in this Medicare group
Wild Rose, WI 54984
- Reassigned Medicare billing, Wisconsin enrollment
- 28 clinicians in this Medicare group
Waupaca, WI 54981
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1780782680 (Wisconsin)
- 85 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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Marshfield Medical Center
Acute Care Hospitals · Marshfield, WIAurora Medical Center Kenosha
Acute Care Hospitals · Kenosha, WIMarshfield Medical Center - Weston
Acute Care Hospitals · Weston, WIThedacare Medical Center-Waupaca
Critical Access Hospitals · Waupaca, WIThedacare Medical Center - Shawano
Critical Access Hospitals · Shawano, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53147 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Joseph Brantman's NPI number?
The NPI number for Joseph Brantman is 1982090676. It was assigned to this individual provider in the NPPES registry on April 9, 2015.
Where is Joseph Brantman located?
Joseph Brantman practices at Mercy Walworth Medical Center N2950 Hwy 67, Lake Geneva, WI 53147. The listed phone number is (262) 245-2230.
What is Joseph Brantman's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Joseph Brantman enrolled in Medicare?
Yes. Joseph Brantman 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 Joseph Brantman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Brantman reassigns Medicare benefits to 17 organizations: Vituity-Wisconsin Em Sc (Pleasant Prairie, WI), Mercy Health System Corporation (Janesville, WI), Aurora Medical Group, Inc. (West Allis, WI), The Medical College Of Wisconsin, Inc. (Milwaukee, WI), Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (Menomonee Falls, WI) and 12 more organizations, listed in the Medicare section above. 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 Joseph Brantman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Joseph Brantman accept?
Health plans from CareSource (Common Ground Healthcare) and Sanford Health Plan list Joseph Brantman 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 Joseph Brantman affiliated with any hospitals?
According to CMS data, Joseph Brantman is affiliated with Marshfield Medical Center, Aurora Medical Center Kenosha, Marshfield Medical Center - Weston, Thedacare Medical Center-Waupaca and Thedacare Medical Center - Shawano.
When was this NPI record last updated?
The NPPES record for Joseph Brantman was last updated on January 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.
# Joseph S Brantman, M.D. · NPI 1982090676
Emergency Medicine physician in Lake Geneva, Wisconsin. Individual provider, active in the CMS NPPES registry since April 9, 2015.
## Identity
- **NPI:** 1982090676 (Entity type: Individual)
- **Enumerated:** April 9, 2015
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 67362 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** MERCY WALWORTH MEDICAL CENTER, N2950 HWY 67, Lake Geneva, WI 53147-2655
- **Phone:** (262) 245-2230
## 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:** 17 organizations under Medicare reassignment (form CMS-855R): Vituity-Wisconsin Em Sc (NPI 1326730664, Pleasant Prairie, WI); Mercy Health System Corporation (NPI 1598718603, Janesville, WI); Aurora Medical Group, Inc. (NPI 1457592735, West Allis, WI); The Medical College Of Wisconsin, Inc. (NPI 1699720086, Milwaukee, WI); Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (NPI 1568787448, Menomonee Falls, WI); and 12 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** January 7, 2026
- **Other identifiers:** Medicaid 100047345 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1982090676) · Data from the CMS NPPES public registry.