Kathleen Diemer
NPI 1255080297 · Occupational Therapist · Saint Charles, MO
Enrolled with Medicare as Practitioner - Occupational Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kathleen Diemer is a Occupational Therapist provider in Saint Charles, MO (NPI 1255080297).
Provider details
- NPI number
- 1255080297
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 2000146943 (MO)
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
4 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
- 2022-03-18
- Last updated
- 2022-03-21
- Certified
- 2022-03-21
Frequently asked questions
- What is Kathleen Diemer's NPI number?
- Kathleen Diemer's National Provider Identifier (NPI) is 1255080297, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathleen Diemer's specialty?
- Kathleen Diemer is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Kathleen Diemer located?
- Kathleen Diemer's practice location on file with NPPES is 3330 Ehlmann Rd, Saint Charles, MO 63301-4089.
- What is Kathleen Diemer's phone number?
- The practice phone number listed in the NPPES registry for Kathleen Diemer is (877) 407-3422.
- Does Kathleen Diemer accept Medicare?
- Kathleen Diemer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kathleen Diemer's NPI active?
- Yes — Kathleen Diemer's NPI (1255080297) is active in the NPPES registry as of the last update on 2022-03-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.