DR. KARL EDWIN STIEN M.D.
NPI 1104872092
Radiology - Diagnostic Radiology in Eau Claire, WI

Active since May 25, 2006PECOS EnrolledAccepts Medicare Assignment
97.61/100
CMS Quality Rating
900 WEST CLAIREMONT AVENUE, EAU CLAIRE, WI 54701(715) 839-4151 Get Directions Write a Review

NPPES record last updated: March 12, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 12, 2026, Dec 24, 2025, Jan 5, 2022 (3 updates tracked since 2022).

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

NPI1104872092
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameDR. KARL EDWIN STIENCredential: M.D.
Location Address900 WEST CLAIREMONT AVENUEEau Claire, WI 54701
Mailing Address2715 W Frank StEau Claire, WI 54703-3628 · (715) 834-5511 · Fax (715) 834-5870
Sole ProprietorYes
Medical School CMSUniversity Of Michigan Medical SchoolGraduated 1999
Enumeration DateMay 25, 2006
Last NPPES UpdateMarch 12, 20263 updates tracked since enumeration
NPPES CertifiedMarch 12, 2026
NPI 1104872092 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License Licensed in WI · 47096
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
900 WEST CLAIREMONT AVENUE, Eau Claire, WI 54701

Secondary Practice Location 1

Location 1203 S Western AveTonasket, WA 98855-8803 · Phone (509) 486-2151 · Fax (509) 223-1640

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID1759360605
PECOS Enrollment IDI20040715000448, I20040902000579, I20230823003681, I20260324003785, I20260401003521
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
501 services444 patients
Ct scan head or brain without contrast 70450
A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.
345 services321 patients
Ct scan of abdomen and pelvis with contrast 74177
A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.
339 services336 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
254 services244 patients
Ct scan of upper spine without contrast 72125
A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.
143 services140 patients
Ct scan of blood vessels of chest with contrast 71275
A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.
131 services130 patients

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, MN
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number240044
Location855 Mankato AvenueWinona, MN 55987 · Winona County
Emergency services Birthing friendly

Aspirus Stanley Hospital

Critical Access Hospitals · Stanley, WI
OwnershipVoluntary non-profit - Private
CMS Certification Number521311
Location1120 Pine StStanley, WI 54768 · Chippewa County
Emergency services

Burnett Medical Center

Critical Access Hospitals · Grantsburg, WI
OwnershipVoluntary non-profit - Private
CMS Certification Number521331
Location257 W St George AveGrantsburg, WI 54840 · Burnett County
Emergency services

Spooner Health System

Critical Access Hospitals · Spooner, WI
OwnershipVoluntary non-profit - Private
CMS Certification Number521332
Location1280 Chandler DrSpooner, WI 54801 · Washburn County
Emergency services

Cumberland Memorial Hospital

Critical Access Hospitals · Cumberland, WI
OwnershipVoluntary non-profit - Other
CMS Certification Number521353
Location1705 16th AveCumberland, WI 54829 · Barron County
Emergency services

Physician 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.

New Patient
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

97.61/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality90
Improvement Activities40

Reported Quality Measures

Radiation Consideration for Adult CT: Utilization of Dose Lowering Techniques
Percentage of final reports for patients aged 18 years and older undergoing CT with documentation that one or more of the following dose reduction techniques were used: - Automated exposure control - Adjustment of the mA and/or kV according to patient size -…
100%565 patients
Radiology: Reminder System for Screening Mammograms
Percentage of patients undergoing a screening mammogram whose information is entered into a reminder system with a target due date for the next mammogram
100%159 patients
Radiology: Stenosis Measurement in Carotid Imaging Reports
Percentage of final reports for carotid imaging studies (neck magnetic resonance angiography [MRA], neck computed tomography angiography [CTA], neck duplex ultrasound, carotid angiogram) performed that include direct or indirect reference to measurements of…
100%37 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

Radiology (Diagnostic Radiology)
900 WEST CLAIREMONT AVENUE
EAU CLAIRE, WI 54701
Pathology (Blood Banking & Transfusion Medicine)
900 WEST CLAIREMONT AVENUE
EAU CLAIRE, WI 54701
Radiology (Diagnostic Radiology)
900 WEST CLAIREMONT AVENUE
EAU CLAIRE, WI 54701
Radiology (Neuroradiology)
900 WEST CLAIREMONT AVENUE
EAU CLAIRE, WI 54701
Radiology (Diagnostic Radiology)
900 WEST CLAIREMONT AVENUE
EAU CLAIRE, WI 54701
Radiology (Diagnostic Radiology)
900 WEST CLAIREMONT AVENUE
EAU CLAIRE, WI 54701
Radiology (Radiological Physics)
900 WEST CLAIREMONT AVENUE
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.

What insurance does Karl Stien accept?

Health plans from CareSource (Common Ground Healthcare) 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 with the weekly NPPES data releases published by CMS.