DR. KARL EDWIN STIEN M.D.
NPI 1104872092
Radiology - Diagnostic Radiology in Eau Claire, WI
About Dr. Karl Edwin Stien M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KARL EDWIN STIEN M.D. (NPI 1104872092) is an individual diagnostic radiology provider in Eau Claire, Wisconsin, licensed in Wisconsin (47096) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Winona Health Services, and maintains a secondary practice location in Tonasket.
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
Dr. Karl Edwin Stien 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
26Medicare enrollment records show Karl Stien reassigns Medicare billing to 26 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Black River Falls, WI 54615
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1811940331 (Wisconsin)
- 227 clinicians in this Medicare group
Rice Lake, WI 54868
- Reassigned Medicare billing, Wisconsin enrollment
- 6 clinicians in this Medicare group
Tomah, WI 54660
- Reassigned Medicare billing, Wisconsin enrollment
- Also billed through NPI 1992970453 (Wisconsin)
- 188 clinicians in this Medicare group
Neenah, WI 54956
- Reassigned Medicare billing, Wisconsin enrollment
- 82 clinicians in this Medicare group
Alexandria, MN 56308
- Reassigned Medicare billing, Maine, Minnesota, Utah and Wisconsin enrollments
Mequon, WI 53092
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Premier Radiology Wisconsin LLC
- 237 clinicians in this Medicare group
Marquette, MI 49855
- Reassigned Medicare billing, Maine enrollment
- 2 clinicians in this Medicare group
Olympia Fields, IL 60461
- Reassigned Medicare billing, Maine enrollment
- 3 clinicians in this Medicare group
Durand, MI 48429
- Reassigned Medicare billing, Michigan enrollment
- 467 clinicians in this Medicare group
Indianapolis, IN 46260
- Reassigned Medicare billing, Maine and Wisconsin enrollments
- 2 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 82
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.
Winona Health Services
Acute Care Hospitals · Winona, MNAspirus Stanley Hospital
Critical Access Hospitals · Stanley, WIBurnett Medical Center
Critical Access Hospitals · Grantsburg, WISpooner Health System
Critical Access Hospitals · Spooner, WICumberland Memorial Hospital
Critical Access Hospitals · Cumberland, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54701 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.
Reported Quality Measures
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
EAU CLAIRE, WI 54701
EAU CLAIRE, WI 54701
EAU CLAIRE, WI 54701
EAU CLAIRE, WI 54701
EAU CLAIRE, WI 54701
EAU CLAIRE, WI 54701
EAU CLAIRE, WI 54701
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 Karl Stien's NPI number?
The NPI number for Karl Stien is 1104872092. It was assigned to this individual provider in the NPPES registry on May 25, 2006.
Where is Karl Stien located?
Karl Stien practices at 900 West Clairemont Avenue, Eau Claire, WI 54701. The listed phone number is (715) 839-4151.
What is Karl Stien's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Karl Stien enrolled in Medicare?
Yes. Karl Stien 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 Karl Stien's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karl Stien reassigns Medicare benefits to 26 organizations: Black River Health Inc (Black River Falls, WI), Diagnostic Radiology Associates Of Wisconsin Sc (Rice Lake, WI), Tomah Memorial Hospital Inc (Tomah, WI), The Neuroscience Group Of Northeast Wisconsin Sc (Neenah, WI), Medical X-Ray Consultants, Ltd (Alexandria, MN) and 21 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 Karl Stien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karl Stien accept?
Health plans from Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield, CareSource (Common Ground Healthcare) and Premera Blue Cross Blue Shield of Alaska list Karl Stien 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 Karl Stien affiliated with any hospitals?
According to CMS data, Karl Stien is affiliated with Winona Health Services, Aspirus Stanley Hospital, Burnett Medical Center, Spooner Health System and Cumberland Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Karl Stien was last updated on March 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Dr. Karl Edwin Stien, M.D. · NPI 1104872092
Diagnostic Radiology physician in Eau Claire, Wisconsin. Individual provider, active in the CMS NPPES registry since May 25, 2006.
## Identity
- **NPI:** 1104872092 (Entity type: Individual)
- **Enumerated:** May 25, 2006
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 47096 (Wisconsin)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 900 WEST CLAIREMONT AVENUE, Eau Claire, WI 54701
- **Phone:** (715) 839-4151
## 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:** 26 organizations under Medicare reassignment (form CMS-855R): Black River Health Inc (NPI 1003914011, Black River Falls, WI); Diagnostic Radiology Associates Of Wisconsin Sc (NPI 1326116781, Rice Lake, WI); Tomah Memorial Hospital Inc (NPI 1184765240, Tomah, WI); The Neuroscience Group Of Northeast Wisconsin Sc (NPI 1578516803, Neenah, WI); Medical X-Ray Consultants, Ltd (NPI 1386601383, Alexandria, MN); and 21 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Michigan Medical School, class of 1999
## Record status
- **NPPES last updated:** March 12, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1104872092) · Data from the CMS NPPES public registry.