NPPES file of Aug 9, 2026

Steven Edward Kenzer, D.O.

Rheumatology Physician · Kenosha, WI

Steven Edward Kenzer, D.O. is a rheumatology physician with a practice address in Kenosha, Wisconsin, and NPI 1255432134, issued on Sep 26, 2006. Check the license (Wisconsin 51488, 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
1255432134
Name
Steven Edward Kenzer
Credential
D.O.
Primary taxonomy
Rheumatology Physician 207RR0500X
License numbers
51488 WI
036 114319 IL
Self-reported in NPPES; status is on the state search
Practice location
12225 71St St, Kenosha, WI 53142
Phone
(262) 948-4870
Enumerated
Sep 26, 2006
Record last updated
Jul 10, 2024
Fax
(262) 948-4871
Medicaid ID
37579300 WI
Medicare enrollment
Enrolled (PECOS I20080804000399); accepts Medicare assignment
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 12225 71St St

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

  1. Stephani DiagneClinical Social Worker1023746179
  2. Katherine Flynn, PSY.D.Psychologist1376720359
  3. Peggy Horon, LPCProfessional Counselor1770812984
  4. Glenda Jackson, R.N.Psychiatric/Mental Health Nurse Practitioner1205291572
  5. Anna Klyachkina, M.D.Psychiatry Physician1518928118
  6. Jill Lotz, APNPNurse Practitioner1679963706

Verify Steven Edward Kenzer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 51488
    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

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3.3 times the Medicare Part D claims of the average rheumatology physician in 2024

6,456 Medicare Part D claims for 881 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 408 claims were for opioids.

  1. Steven Kenzer6,456
  2. Specialty average1,978

Most prescribed

  1. Hydroxychloroquine Sulfate745 claims
  2. Prednisone587 claims
  3. Gabapentin556 claims
  4. Methotrexate491 claims
  5. Duloxetine Hcl368 claims
  6. Allopurinol364 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.

Industry payments in 2024: $13.18

1 payment: food and beverage; the largest payer was Abbvie Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Steven Kenzer$13.18
  2. Specialty average$8,538.33

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Advantage Physical Therapy And Sports Rehab, LLCSalem, WI
  2. Aurora Medical Group, Inc.Milwaukee, WI

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

Steven Edward Kenzer among 154 rheumatology physician records in Wisconsin

Steven Edward Kenzer, D.O. is one of 154 rheumatology physician records with a practice address in Wisconsin. 76% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 48% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2003 · median 2004 among the 97 with a school on file
  • Record last updated2024 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in Wisconsin

There are 154 rheumatology physician records in Wisconsin.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Mehjabein Khan, MDKenosha, WI 531431477500312
  2. Bonit Gill, DONew Berlin, WI 531511851929236
  3. Rodrigo Valadares De Sousa, MDFranklin, WI 531321023250321
  4. Salman Waheeduddin, MBBSFranklin, WI 531321598700387
  5. Karri Huber, D.O.Oak Creek, WI 531541093805319
  6. Robina Chowdhery, MDPleasant Prairie, WI 531581881803658
  7. Iryna Nemesh, M.D.Waterford, WI 531851942694401
  8. Douglas Hempel, M.D.Waukesha, WI 531861164423844

Common questions

What is Steven Edward Kenzer, D.O.'s NPI number?

Steven Edward Kenzer, D.O.'s National Provider Identifier (NPI) is 1255432134, issued on Sep 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Steven Edward Kenzer, D.O. located?

The NPPES record lists a practice address at 12225 71St St, Kenosha, WI, 53142. Phone: (262) 948-4870. Providers update this record themselves, so call before visiting.

How can I verify Steven Edward Kenzer, D.O.'s license?

NPPES lists Wisconsin license number 51488, 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 Edward Kenzer, D.O. prescribe under Medicare Part D?

In 2024, Steven Edward Kenzer, D.O. had 6,456 Medicare Part D claims for 881 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.