NPPES file of Aug 9, 2026

Karin Duffield, PT

Physical Therapist · Beloit, WI

Karin Duffield, PT is a physical therapist with a practice address in Beloit, Wisconsin, and NPI 1881619211, issued on Jul 13, 2006. Check the license (Wisconsin 3858-024, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1881619211
Name
Karin Duffield
Credential
PT
Primary taxonomy
Physical Therapist 225100000X
License number
3858-024 WI
Self-reported in NPPES; status is on the state search
Practice location
2825 Prairie Ave, Beloit, WI 53511
Phone
(608) 363-5500
Enumerated
Jul 13, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20061003000122); 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 2825 Prairie Ave

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

  1. Martin Batson, CPOOrthotist1699922286
  2. Erika Bourdeaux, DNP, RN, CPNP-PCPediatric Nurse Practitioner1487196895
  3. Karla Degarmo-Haakenson, LCSWClinical Social Worker1427024678
  4. James Flood, MDFamily Medicine Physician1861443277
  5. Charles Kramarczyk, CPProsthetist1124366265
  6. Emarcia Peete, M.D.Pediatrics Physician1780857508

Verify Karin Duffield in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 3858-024
    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
Find 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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Bills Medicare through one group practice

  1. Mercy Health System CorporationBeloit, WI

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

26 physical therapist records list a practice address in Beloit

They are 26 of the 706 NPPES records with a practice address in Beloit, and 6,585 physical therapist records in Wisconsin.

Other physical therapist records in Wisconsin

  1. Jared Aarsvold, PT, DPTAltoona, WI1356208060
  2. Delia Abano, PTRhinelander, WI1780028852
  3. Mikayla Abbeduto, DPTWaukesha, WI1316513955
  4. Michelle Abbott, PT, DPTHudson, WI1508725698
  5. Nicole Abdo, DPTGreen Bay, WI1225315096
  6. Heather AbelsElkhorn, WI1760598064
  7. Kelsey Abendroth, PTNew London, WI1548783228
  8. Paul Abler, P.T.Hartland, WI1235281254
  9. Nada Abouelnaga, DPTAmery, WI1902632045
  10. Anne Abraham, PTMadison, WI1205903523

Common questions

What is Karin Duffield, PT's NPI number?

Karin Duffield, PT's National Provider Identifier (NPI) is 1881619211, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Karin Duffield, PT located?

The NPPES record lists a practice address at 2825 Prairie Ave, Beloit, WI, 53511. Phone: (608) 363-5500. Providers update this record themselves, so call before visiting.

How can I verify Karin Duffield, PT's license?

NPPES lists Wisconsin license number 3858-024, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity 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.