Quick answers
- Does Patrizia A. Showell accept Medicare assignment?
- Yes. Medicare's clinician data says Patrizia A. Showell 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 Patrizia A. Showell see?
- In 2024, CMS data shows 133 Original Medicare patients and 348 services for Patrizia A. Showell. This counts Original Medicare only and measures volume, not quality.
- What is Patrizia A. Showell's NPI number?
- 1942279864. 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 Patrizia A. Showell, 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 | 133 |
|---|---|
| Services billed to Medicare | 348 |
| Different services or procedures | 44 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)95 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)41 services
- Manual urinalysis test with examination using microscope, automated (81001)28 services
- Insertion of needle into vein for collection of blood sample (36415)27 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)21 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 cholesterol75%
- High blood pressure55%
- Arthritis45%
- Ischemic heart disease27%
- Chronic kidney disease21%
- Osteoporosis20%
Practice locations
Addresses where Patrizia A. Showell is enrolled with Medicare (CMS data updated October 2, 2026).
- 904 7th AveSeattle, WA 98104 (206) 309‑1760
Group practices
Medicare enrollment lists Patrizia A. Showell as a member of this group (CMS data updated October 2, 2026).
- The Polyclinic PLLC365 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Seattle
Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.
Other clinicians in The Polyclinic PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tulane University School Of Medicine |
| Graduation year | 1993 (33 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1942279864 |
| 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