Maren Duimstra, PT, DPT
NPI 1164831855 · Orthopedic Physical Therapist · Kirkland, WA
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maren Duimstra, PT, DPT is a Orthopedic Physical Therapist provider in Kirkland, WA (NPI 1164831855).
Provider details
- NPI number
- 1164831855
- Entity type
- Individual
- Primary specialty
- Orthopedic Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- PT, DPT
- Sex
- Female
- Sole proprietor
- No
- License
- 60483343 (WA)
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 tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
5,916 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Therapy Procedure Using Exercise to Develop Strength, Endurance, Range of Motion, and Flexibility, Each 15 Minutes97110 | 1,702 | $24 |
| Therapy Procedure Using Manual Technique, Each 15 Minutes97140 | 1,602 | $21 |
| Therapy Procedure to Re-Educate Brain-To-Nerve-To-Muscle Function, Each 15 Minutes97112 | 1,377 | $30 |
| Therapy Procedure Using Functional Activities97530 | 1,036 | $35 |
| Therapy Procedure for Walking Training, Each 15 Minutes97116 | 179 | $22 |
| Evaluation for Physical Therapy, Typically 30 Minutes97162 | 20 | $111 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-08-06
- Last updated
- 2023-02-25
- Certified
- 2023-02-25
Frequently asked questions
- What is Maren Duimstra's NPI number?
- Maren Duimstra's National Provider Identifier (NPI) is 1164831855, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maren Duimstra's specialty?
- Maren Duimstra is listed in the NPPES registry with a primary specialty of Orthopedic Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Maren Duimstra located?
- Maren Duimstra's practice location on file with NPPES is 11800 Ne 128th St Ste 510, Kirkland, WA 98034-7296.
- What is Maren Duimstra's phone number?
- The practice phone number listed in the NPPES registry for Maren Duimstra is (425) 820-2590.
- Does Maren Duimstra accept Medicare?
- Maren Duimstra is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maren Duimstra's NPI active?
- Yes — Maren Duimstra's NPI (1164831855) is active in the NPPES registry as of the last update on 2023-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.