Quick answers
- Does Clifford P. Knelsen accept Medicare assignment?
- Yes. Medicare's clinician data says Clifford P. Knelsen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Clifford P. Knelsen see?
- In 2024, CMS data shows 270 Original Medicare patients and 10,225 services for Clifford P. Knelsen. This counts Original Medicare only and measures volume, not quality.
- What is Clifford P. Knelsen's NPI number?
- 1750320677. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Clifford P. Knelsen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 270 |
|---|---|
| Services billed to Medicare | 10,225 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes (97110)4,240 services
- Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes (97112)3,374 services
- Therapy procedure using manual technique, each 15 minutes (97140)965 services
- Application of blood vessel compression device (97016)378 services
- Application of low energy heat (97026)324 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure71%
- Arthritis70%
- High cholesterol61%
- Diabetes33%
- Anxiety25%
- Chronic kidney disease23%
Practice locations
Addresses where Clifford P. Knelsen is enrolled with Medicare (CMS data updated October 2, 2026).
- 725 6th StClarkston, WA 99403 (509) 758‑8510
Group practices
Medicare enrollment lists Clifford P. Knelsen as a member of this group (CMS data updated October 2, 2026).
- Knelsen Twin Rivers Physical Therapy3 clinicians in the group
Specialties
Find other clinicians: Physical Therapist in Private Practice, Washington →
Other physical therapists in Clarkston
Clinicians with the same Medicare primary specialty in Clarkston, WA — not a recommendation.
Other clinicians in Knelsen Twin Rivers Physical Therapy
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PT |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1750320677 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians