DR. CASEY MICHELLE IPPEN MD
NPI 1053554642
Emergency Medicine in Milwaukee, WI
About Dr. Casey Michelle Ippen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CASEY MICHELLE IPPEN MD (NPI 1053554642) is an individual emergency medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (55264) and active in the NPI registry since April 2009. She is enrolled in Medicare PECOS and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Casey Michelle Ippen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Casey Ippen reassigns Medicare billing to 3 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
- 3,983 clinicians in this Medicare group
Menomonee Falls, WI 53051
- Reassigned Medicare billing, Wisconsin enrollment
- 2,294 clinicians in this Medicare group
Madison, WI 53715
- Reassigned Medicare billing, Wisconsin enrollment
- 103 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53226 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 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
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 Casey Ippen's NPI number?
The NPI number for Casey Ippen is 1053554642. It was assigned to this individual provider in the NPPES registry on April 12, 2009.
Where is Casey Ippen located?
Casey Ippen practices at 9200 W Wisconsin Ave, Milwaukee, WI 53226. The listed phone number is (414) 955-6450.
What is Casey Ippen's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Casey Ippen enrolled in Medicare?
Yes. Casey Ippen is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Casey Ippen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Casey Ippen reassigns Medicare benefits to 3 organizations: The Medical College Of Wisconsin, Inc. (Milwaukee, WI), Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (Menomonee Falls, WI) and Madison Emergency Physicians, Sc (Madison, 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 Casey Ippen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Casey Ippen accept?
Health plans from Anthem Blue Cross and Blue Shield list Casey Ippen 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.
When was this NPI record last updated?
The NPPES record for Casey Ippen was last updated on March 25, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Casey Michelle Ippen, MD · NPI 1053554642
Emergency Medicine physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since April 12, 2009.
## Identity
- **NPI:** 1053554642 (Entity type: Individual)
- **Enumerated:** April 12, 2009
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 55264 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 9200 W WISCONSIN AVE, Milwaukee, WI 53226-3522
- **Phone:** (414) 955-6450 · **Fax:** (414) 955-0082
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): The Medical College Of Wisconsin, Inc. (NPI 1699720086, Milwaukee, WI); Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (NPI 1568787448, Menomonee Falls, WI); Madison Emergency Physicians, Sc (NPI 1588646095, Madison, WI) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 25, 2024
- **Other identifiers:** Other 022631 (CO); Medicaid 87325560 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1053554642) · Data from the CMS NPPES public registry.