Quick answers
- Does Kerstin L. Edlefsen accept Medicare assignment?
- Yes. Medicare's clinician data says Kerstin L. Edlefsen 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 Kerstin L. Edlefsen see?
- In 2024, CMS data shows 230 Original Medicare patients and 491 services for Kerstin L. Edlefsen. This counts Original Medicare only and measures volume, not quality.
- What is Kerstin L. Edlefsen's NPI number?
- 1801903158. 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 Kerstin L. Edlefsen, 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 | 230 |
|---|---|
| Services billed to Medicare | 491 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Flow cytometry technique for dna or cell analysis, 16 or more markers (88189)114 services
- Flow cytometry technique for dna or cell analysis, 9 to 15 markers (88188)60 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)56 services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)49 services
- Surgical pathology consultation and report on referred slides prepared elsewhere (88321)29 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 pressure70%
- High cholesterol62%
- Arthritis40%
- Ischemic heart disease31%
- Anxiety30%
- Atrial fibrillation26%
Hospitals where Kerstin L. Edlefsen works
Medicare's Facility Affiliation Data lists Kerstin L. Edlefsen 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.
- Harborview Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500064
- University of Washington Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 500008
Practice locations
Addresses where Kerstin L. Edlefsen is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 1560 N 115th St, Suite G5Seattle, WA 98133 (206) 368‑1626
- 1701 Columbia RdSeattle, WA 98195 (206) 598‑3100
- 1959 NE Pacific StSeattle, WA 98195 (206) 598‑4333
- 19917 7th Ave, Suite 100Poulsbo, WA 98370 (360) 697‑8000
- 728 Edmonds Way, Rosewood Courte Memory CareEdmonds, WA 98020 (425) 673‑2875
Group practices
Medicare enrollment lists Kerstin L. Edlefsen as a member of this group (CMS data updated October 2, 2026).
- The Association of University Physicians3,535 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Seattle
Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.
Other clinicians in The Association of University Physicians
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 | 2002 (24 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1801903158 |
| 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