John Liddell, PHYSICAL THERAPIST
NPI 1972969988 · Physical Therapist · Mequon, WI
Provider details
- NPI number
- 1972969988
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- PHYSICAL THERAPIST
- Sex
- Male
- Sole proprietor
- No
- License
- 11987 (AZ)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
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
10 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
- 2016-01-06
- Last updated
- 2016-05-08
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.