Karin Duffield, PT
NPI 1881619211 · Physical Therapist · Beloit, WI
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karin Duffield, PT is a Physical Therapist provider in Beloit, WI (NPI 1881619211).
Provider details
- NPI number
- 1881619211
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- PT
- Sex
- Female
- Sole proprietor
- No
- License
- 3858-024 (WI)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-13
- Last updated
- 2007-07-08
Frequently asked questions
- What is Karin Duffield's NPI number?
- Karin Duffield's National Provider Identifier (NPI) is 1881619211, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karin Duffield's specialty?
- Karin Duffield is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Karin Duffield located?
- Karin Duffield's practice location on file with NPPES is 2825 Prairie Ave, Beloit, WI 53511-1844.
- What is Karin Duffield's phone number?
- The practice phone number listed in the NPPES registry for Karin Duffield is (608) 363-5500.
- Does Karin Duffield accept Medicare?
- Karin Duffield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karin Duffield's NPI active?
- Yes — Karin Duffield's NPI (1881619211) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.