Quick answers
- Does Louis W. Cotterell accept Medicare assignment?
- Yes. Medicare's clinician data says Louis W. Cotterell 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 Louis W. Cotterell see?
- In 2024, CMS data shows 343 Original Medicare patients and 1,329 services for Louis W. Cotterell. This counts Original Medicare only and measures volume, not quality.
- What is Louis W. Cotterell's NPI number?
- 1811994668. 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 Louis W. Cotterell, 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 | 343 |
|---|---|
| Services billed to Medicare | 1,329 |
| Different services or procedures | 21 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Dialysis services, per day, less than full month service (20 years or older) (90970)501 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)258 services
- Dialysis services, 4 or more physician visits per month (20 years or older) (90960)189 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)97 services
- Hemodialysis procedure with physician evaluation (90935)78 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 pressure75%
- High cholesterol75%
- Chronic kidney disease75%
- Diabetes55%
- Arthritis44%
- Heart failure43%
Hospitals where Louis W. Cotterell works
Medicare's Facility Affiliation Data lists Louis W. Cotterell at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Deaconess Medical CenterSpokane, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500044
- Multicare Valley HospitalSpokane Valley, WA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 500119
- Tacoma General Allenmore HospitalTacoma, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500129
Practice locations
Addresses where Louis W. Cotterell is enrolled with Medicare (CMS data updated October 2, 2026).
- 300 E 5th AveSpokane, WA 99202
- 311 S L StTacoma, WA 98405
- 400 E 5th AveSpokane, WA 99202 (509) 838‑2531
- 4700 Point Fosdick DrGig Harbor, WA 98335
Group practices
Medicare enrollment lists Louis W. Cotterell as a member of this group (CMS data updated October 2, 2026).
- Multicare Health System2,325 clinicians in the group
Specialties
- Nephrologyprimary
- Critical Care (Intensivists)also
Other nephrologists in Spokane
Clinicians with the same Medicare primary specialty in Spokane, WA — not a recommendation.
Other clinicians in Multicare Health System
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Creighton University School Of Medicine |
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811994668 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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