Quick answers
- Does Kari D. Fitzsimmons accept Medicare assignment?
- Yes. Medicare's clinician data says Kari D. Fitzsimmons 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 Kari D. Fitzsimmons see?
- In 2024, CMS data shows 307 Original Medicare patients and 658 services for Kari D. Fitzsimmons. This counts Original Medicare only and measures volume, not quality.
- What is Kari D. Fitzsimmons's NPI number?
- 1124053871. 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 Kari D. Fitzsimmons, 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 | 307 |
|---|---|
| Services billed to Medicare | 658 |
| Different services or procedures | 61 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)158 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)107 services
- Insertion of needle into vein for collection of blood sample (36415)42 services
- Manual urinalysis test with examination using microscope, automated (81001)35 services
- Bacterial colony count, urine (87086)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 cholesterol71%
- High blood pressure68%
- Arthritis42%
- Ischemic heart disease23%
- Chronic kidney disease22%
- Diabetes21%
Practice locations
Addresses where Kari D. Fitzsimmons is enrolled with Medicare (CMS data updated October 2, 2026).
- 3927 Rucker AveEverett, WA 98201 (425) 339‑3930
Group practices
Medicare enrollment lists Kari D. Fitzsimmons as a member of this group (CMS data updated October 2, 2026).
- Optum Care Washington PLLC683 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Everett
Clinicians with the same Medicare primary specialty in Everett, WA — not a recommendation.
Other clinicians in Optum Care Washington PLLC
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 | 2003 (23 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1124053871 |
| 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