Mark Klem, PT
NPI 1841535465 · Pediatric Physical Therapist · Irvine, CA
Mark Klem, PT is a Pediatric Physical Therapist provider in Irvine, CA (NPI 1841535465).
Provider details
- NPI number
- 1841535465
- Entity type
- Individual
- Primary specialty
- Pediatric Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- PT
- Sex
- Male
- Sole proprietor
- Yes
- License
- 18176 (CA)
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
13 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
- 2012-12-07
- Last updated
- 2012-12-07
Frequently asked questions
- What is Mark Klem's NPI number?
- Mark Klem's National Provider Identifier (NPI) is 1841535465, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Klem's specialty?
- Mark Klem is listed in the NPPES registry with a primary specialty of Pediatric Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Mark Klem located?
- Mark Klem's practice location on file with NPPES is 12 Harvest, Irvine, CA 92604-3234.
- What is Mark Klem's phone number?
- The practice phone number listed in the NPPES registry for Mark Klem is (949) 677-5029.
- Is Mark Klem's NPI active?
- Yes — Mark Klem's NPI (1841535465) is active in the NPPES registry as of the last update on 2012-12-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.