NPPES file of Aug 9, 2026

Kenneth J. Warrington, MD

Rheumatology Physician · Rochester, MN

Kenneth J. Warrington, MD is a rheumatology physician with a practice address in Rochester, Minnesota, and NPI 1184682916, issued on May 2, 2006. Check the license (Minnesota 41113, as entered in NPPES) on the Minnesota Board of Medical Practice; 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
1184682916
Name
Kenneth J. Warrington
Credential
MD
Primary taxonomy
Rheumatology Physician 207RR0500X
License numbers
41113 MN
36099 TN
Self-reported in NPPES; status is on the state search
Practice location
200 1St St SW, Rochester, MN 55905
Phone
(507) 284-2511
Enumerated
May 2, 2006
Record last updated
Aug 21, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20060829000124); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 200 1St St SW

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

  1. Timothy Aadland, M.D.Diagnostic Radiology Physician1780662783
  2. Christopher Aakre, MDInternal Medicine Physician1508151663
  3. Kathryn Aaro, P.T.Physical Therapist1619360666
  4. Danielle Aase, MDReproductive Endocrinology Physician1316524135
  5. Uzoamaka Abajue, PHARMDPharmacist1982335295
  6. Francisco Abarca Rendon, MDIndependent Medical Examiner Physician1790096246

Verify Kenneth J. Warrington in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMinnesota Board of Medical Practice
    Search for license 41113
    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 Minnesota license search

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86% fewer Medicare Part D claims than the average rheumatology physician in 2024

285 Medicare Part D claims for 75 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Kenneth Warrington285
  2. Specialty average1,978

Most prescribed

  1. Prednisone126 claims
  2. Sulfamethoxazole-Trimethoprim36 claims
  3. Actemra Actpen28 claims
  4. Methotrexate21 claims
  5. Nucala17 claims
  6. Azathioprine14 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: $7,383.66

9 payments; by number, the most common kind was consulting fee; the largest payer was Amgen 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. Kenneth Warrington$7,383.66
  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 one group practice

  1. Mayo ClinicRochester, MN

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

Kenneth J. Warrington among 173 rheumatology physician records in Minnesota

Kenneth J. Warrington, MD is one of 173 rheumatology physician records with a practice address in Minnesota. 77% 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 15% of them.

  • NPI issued2006 · 15% of these records are older, 50% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated1992 · median 2008 among the 116 with a school on file
  • Record last updated2020 · 60% 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 Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in Minnesota

There are 173 rheumatology physician records in Minnesota.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Shreyasee Amin, M.D.Rochester, MN 559051316917552
  2. John Davis, M.D.Rochester, MN 559051881665024
  3. Joseph Duffy, M.D.Rochester, MN 559051770563769
  4. Floranne Ernste, M.D.Rochester, MN 559051033180641
  5. Sherine Gabriel, M.D.Rochester, MN 559051952389348
  6. Jacob Ijdo, MDRochester, MN 559051720075872
  7. Harvinder Luthra, MBBSRochester, MN 559051285614321
  8. Thomas Mason, M.D.Rochester, MN 559051104805522

Common questions

What is Kenneth J. Warrington, MD's NPI number?

Kenneth J. Warrington, MD's National Provider Identifier (NPI) is 1184682916, issued on May 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kenneth J. Warrington, MD located?

The NPPES record lists a practice address at 200 1St St SW, Rochester, MN, 55905. Phone: (507) 284-2511. Providers update this record themselves, so call before visiting.

How can I verify Kenneth J. Warrington, MD's license?

NPPES lists Minnesota license number 41113, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Kenneth J. Warrington, MD prescribe under Medicare Part D?

In 2024, Kenneth J. Warrington, MD had 285 Medicare Part D claims for 75 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.