John Klasen, JOHN KLASEN
NPI 1770649899 · Physical Therapist · Arlington Heights, IL
John Klasen, JOHN KLASEN is a Physical Therapist provider in Arlington Heights, IL (NPI 1770649899).
Provider details
- NPI number
- 1770649899
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- JOHN KLASEN
- Sex
- Male
- Sole proprietor
- Yes
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
83% 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
- 2007-01-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Klasen's NPI number?
- John Klasen's National Provider Identifier (NPI) is 1770649899, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Klasen's specialty?
- John Klasen is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is John Klasen located?
- John Klasen's practice location on file with NPPES is 1412 N Dunton Ave, Arlington Heights, IL 60004-4729.
- What is John Klasen's phone number?
- The practice phone number listed in the NPPES registry for John Klasen is (847) 259-5981.
- Is John Klasen's NPI active?
- Yes — John Klasen's NPI (1770649899) 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.