NPPES file of Aug 9, 2026

Steven C. Immerman, M.D.

Surgery Physician · Eau Claire, WI

Steven C. Immerman, M.D. is a surgery physician with a practice address in Eau Claire, Wisconsin, and NPI 1740241538, issued on Mar 31, 2006. Check the license (Wisconsin 23570, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740241538
Name
Steven C. Immerman
Credential
M.D.
Primary taxonomy
Surgery Physician 208600000X
License number
23570 WI
Self-reported in NPPES; status is on the state search
Practice location
719 W Hamilton Ave, Eau Claire, WI 54701
Phone
(715) 832-1044
Enumerated
Mar 31, 2006
Record last updated
Dec 17, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(715) 832-0520
Medicaid ID
30428200 WI
Medicare enrollment
Enrolled (PECOS I20100817000567); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 1976
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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Also registered at 719 W Hamilton Ave

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

  1. Brandon Andrew, M.D.Surgery Physician1467745224
  2. Richard Daniels, M.D.Surgery Physician1053369496
  3. Geoffrey Roelant, M.D.Surgery Physician1720247257
  4. Brent Wogahn, M.D.Surgery Physician1922056787

Verify Steven C. Immerman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 23570
    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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82% fewer Medicare Part D claims than the average surgery physician in 2024

26 Medicare Part D claims, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D.

  1. Steven Immerman26
  2. Specialty average147

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Evergreen Surgical, S.C.Eau Claire, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Steven C. Immerman among 726 surgery physician records in Wisconsin

Steven C. Immerman, M.D. is one of 726 surgery physician records with a practice address in Wisconsin. 72% 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 12% of them.

  • NPI issued2006 · 12% of these records are older, 52% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1976 · median 2006 among the 446 with a school on file
  • Record last updated2021 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Wisconsin

There are 726 surgery physician records in Wisconsin.

The 8 surgery physician records with the nearest ZIP codes

  1. Brandon Andrew, M.D.Eau Claire, WI 547011467745224
  2. Richard Daniels, M.D.Eau Claire, WI 547011053369496
  3. Miechia Esco, M.D.,PHDEau Claire, WI 547011164595310
  4. Caesar Gonzaga, MDEau Claire, WI 547011083730956
  5. Kari Paulson, MDEau Claire, WI 547011679704134
  6. Timothy Pitchford, M.D.Eau Claire, WI 547011679531271
  7. Geoffrey Roelant, M.D.Eau Claire, WI 547011720247257
  8. Ronald Waits, MDEau Claire, WI 547011528167079

Common questions

What is Steven C. Immerman, M.D.'s NPI number?

Steven C. Immerman, M.D.'s National Provider Identifier (NPI) is 1740241538, issued on Mar 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Steven C. Immerman, M.D. located?

The NPPES record lists a practice address at 719 W Hamilton Ave, Eau Claire, WI, 54701. Phone: (715) 832-1044. Providers update this record themselves, so call before visiting.

How can I verify Steven C. Immerman, M.D.'s license?

NPPES lists Wisconsin license number 23570, 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.

How much does Steven C. Immerman, M.D. prescribe under Medicare Part D?

In 2024, Steven C. Immerman, M.D. had 26 Medicare Part D claims; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.

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.

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.