NPPES file of Aug 9, 2026

Scott J. Stellmacher, MD

Family Medicine Physician · Fond Du Lac, WI

Scott J. Stellmacher, MD is a family medicine physician with a practice address in Fond Du Lac, Wisconsin, and NPI 1043327265, issued on Aug 24, 2006. Check the license (Wisconsin 29515, 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
1043327265
Name
Scott J. Stellmacher
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
29515 WI
Self-reported in NPPES; status is on the state search
Practice location
210 Wisconsin American Dr, Fond Du Lac, WI 54935
Phone
(920) 907-7000
Enumerated
Aug 24, 2006
Record last updated
Nov 13, 2023
Medicaid ID
31423200 WI
Medicare enrollment
Enrolled (PECOS I20061009000090); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 1987
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 210 Wisconsin American Dr

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

  1. James Avery, M.D.Specialist1750374096
  2. Catherine Conely, CCC-AAudiologist1205884400
  3. Amy Emmer-Sheldon, MDPediatrics Physician1376658492
  4. Marian Freund, MDPediatrics Physician1487769543
  5. Sarah Guse, NPNurse Practitioner1417147786
  6. Julie Henry, ODOptometrist1295842805

Verify Scott J. Stellmacher in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 29515
    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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80% fewer Medicare Part D claims than the average family medicine physician in 2024

713 Medicare Part D claims for 473 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 34 claims were for opioids.

  1. Scott Stellmacher713
  2. Specialty average3,544

Most prescribed

  1. Prednisone116 claims
  2. Azithromycin106 claims
  3. Doxycycline Monohydrate59 claims
  4. Amoxicillin50 claims
  5. Methylprednisolone39 claims
  6. Amoxicillin-Clavulanate Potass32 claims

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. Aurora Medical Group, Inc.Fond Du Lac, WI

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

Scott J. Stellmacher among 3,765 family medicine physician records in Wisconsin

Scott J. Stellmacher, MD is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% 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, 46% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1987 · median 2007 among the 2,347 with a school on file
  • Record last updated2023 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

27 family medicine physician records list a practice address in Fond Du Lac

They are 27 of the 1,312 NPPES records with a practice address in Fond Du Lac, and 3,765 family medicine physician records in Wisconsin.

The 8 family medicine physician records with the nearest ZIP codes

  1. Michael Bachhuber, MDFond Du Lac, WI 549351538150990
  2. William Brusky, MDFond Du Lac, WI 549351124019898
  3. Paul Chambers, MDFond Du Lac, WI 549351518958123
  4. Derek Colmenares, MDFond Du Lac, WI 549351831180470
  5. Jamie Deering, MDFond Du Lac, WI 549351164473617
  6. Gina Everson, MDFond Du Lac, WI 549351124019799
  7. Thomas Fabricius, MDFond Du Lac, WI 549351861475592
  8. Kent Hartung, MDFond Du Lac, WI 549351417925595

Common questions

What is Scott J. Stellmacher, MD's NPI number?

Scott J. Stellmacher, MD's National Provider Identifier (NPI) is 1043327265, issued on Aug 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Scott J. Stellmacher, MD located?

The NPPES record lists a practice address at 210 Wisconsin American Dr, Fond Du Lac, WI, 54935. Phone: (920) 907-7000. Providers update this record themselves, so call before visiting.

How can I verify Scott J. Stellmacher, MD's license?

NPPES lists Wisconsin license number 29515, 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 Scott J. Stellmacher, MD prescribe under Medicare Part D?

In 2024, Scott J. Stellmacher, MD had 713 Medicare Part D claims for 473 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.