Quick answers
- Does David W. Dempster accept Medicare assignment?
- Yes. Medicare's clinician data says David W. Dempster 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 David W. Dempster see?
- In 2024, CMS data shows 38 Original Medicare patients and 207 services for David W. Dempster. This counts Original Medicare only and measures volume, not quality.
- What is David W. Dempster's NPI number?
- 1861438558. 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 David W. Dempster, 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 | 38 |
|---|---|
| Services billed to Medicare | 207 |
| Different services or procedures | 19 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Dialysis services, 1 physician visit per month (20 years or older) (90962)33 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)31 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%
- Chronic kidney disease75%
- Diabetes61%
- High cholesterol58%
- Arthritis42%
- Heart failure34%
Practice locations
Addresses where David W. Dempster is enrolled with Medicare (CMS data updated October 2, 2026).
- 209 Martin Luther King Jr WayTacoma, WA 98405 (253) 596‑3300
Group practices
Medicare enrollment lists David W. Dempster as a member of this group (CMS data updated October 2, 2026).
- Kaiser Foundation Health Plan of Washington1,526 clinicians in the group
Specialties
- Internal Medicineprimary
- Hospitalistalso
- Nephrologyalso
Other internal medicine doctors in Tacoma
Clinicians with the same Medicare primary specialty in Tacoma, WA — not a recommendation.
Other clinicians in Kaiser Foundation Health Plan of Washington
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Washington School Of Medicine |
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1861438558 |
| 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