NPPES file of Aug 9, 2026

Karl Edwin Stien, M.D.

Diagnostic Radiology Physician · Eau Claire, WI

Karl Edwin Stien, M.D. is a diagnostic radiology physician with a practice address in Eau Claire, Wisconsin, and NPI 1104872092, issued on May 25, 2006. Check the license (Wisconsin 47096, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104872092
Name
Karl Edwin Stien
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
47096 WI
Self-reported in NPPES; status is on the state search
Practice location
900 West Clairemont Avenue, Eau Claire, WI 54701
Phone
(715) 839-4151
Enumerated
May 25, 2006
Record last updated
Mar 12, 2026
Medicare enrollment
Enrolled (PECOS I20260324003785); accepts Medicare assignment
Medical or professional school
University Of Michigan Medical School, 1999
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest diagnostic radiology physician records → All 1,005 in Wisconsin → Look up another NPI →

Also registered at 900 West Clairemont Avenue

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mark Augustyn, MDDiagnostic Radiology Physician1013963909
  2. Merle Edwards, MDDiagnostic Radiology Physician1740236637
  3. John Feldmeier, MDDiagnostic Radiology Physician1295781185
  4. James Geraghty, MDDiagnostic Radiology Physician1659327542
  5. Greg Heiler, MDBlood Banking & Transfusion Medicine Physician1134173156
  6. Michael Spak, MDRadiological Physics Physician1831145721

Verify Karl Edwin Stien in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 47096    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The MIPS final score for 2023 (Medicare payment program): 94.6 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score85.2
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

8 hospitals and group practices

  1. Hurley Medical CenterFlint, MI · Acute Care Hospitals2 of 5 stars
  2. County OF Santa ClaraSan Jose, CA
  3. Diagnostic Radiology Associates OF Wisconsin SCRice Lake, WI
  4. Imaging Associates OF Indiana, PCCape Elizabeth, ME
  5. Imaging Associates OF Michigan PLLCCape Elizabeth, ME
  6. Medical X-Ray Consultants LtdWabasha, MN
  7. Tomah Memorial Hospital IncTomah, WI
  8. Tower Imaging Medical Associates IncCushing, ME

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Karl Edwin Stien among 1,005 diagnostic radiology physician records in Wisconsin

Karl Edwin Stien, M.D. is one of 1,005 diagnostic radiology physician records with a practice address in Wisconsin. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 48% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1999 · median 2006 among the 664 with a school on file
  • Record last updated2026 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in Wisconsin

There are 1,005 diagnostic radiology physician records in Wisconsin.

All 1,005 in Wisconsin → Every provider in Eau Claire → Diagnostic Radiology Physician nationwide →

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Mark Augustyn, MDEau Claire, WI 547011013963909
  2. Merle Edwards, MDEau Claire, WI 547011740236637
  3. John Feldmeier, MDEau Claire, WI 547011295781185
  4. James Geraghty, MDEau Claire, WI 547011659327542
  5. Peter Hanson, MDEau Claire, WI 547011306892161
  6. Vicki Hawn, MDEau Claire, WI 547011255336897
  7. Peter Humphrey, MDEau Claire, WI 547011972642916
  8. James Kinsella, M.D.Eau Claire, WI 547011821295635

Common questions

What is Karl Edwin Stien, M.D.'s NPI number?

Karl Edwin Stien, M.D.'s National Provider Identifier (NPI) is 1104872092, issued on May 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Karl Edwin Stien, M.D. located?

The NPPES record lists a practice address at 900 West Clairemont Avenue, Eau Claire, WI, 54701. Phone: (715) 839-4151. Providers update this record themselves, so call before visiting.

How can I verify Karl Edwin Stien, M.D.'s license?

NPPES lists Wisconsin license number 47096, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Karl Edwin Stien, M.D.'s MIPS final score?

The 2023 MIPS final score is 94.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.