Quick answers
- Does Iryna M. Sapieha accept Medicare assignment?
- Yes. Medicare's clinician data says Iryna M. Sapieha 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 Iryna M. Sapieha see?
- In 2024, CMS data shows 221 Original Medicare patients and 294 services for Iryna M. Sapieha. This counts Original Medicare only and measures volume, not quality.
- What is Iryna M. Sapieha's NPI number?
- 1235389933. 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 Iryna M. Sapieha, 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 | 221 |
|---|---|
| Services billed to Medicare | 294 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)50 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)48 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)44 services
- Sleep study in sleep lab (6 years or older) (95810)35 services
- Home sleep test (hst) with type iv portable monitor, unattended; minimum of 3 channels (G0400)34 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 cholesterol73%
- High blood pressure69%
- Arthritis51%
- Depression33%
- Anxiety28%
- Ischemic heart disease24%
Hospitals where Iryna M. Sapieha works
Medicare's Facility Affiliation Data lists Iryna M. Sapieha 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.
- Swedish Edmonds HospitalEdmonds, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500026
- Swedish IssaquahIssaquah, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500152
- Swedish Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500027
- Swedish Medical Center / Cherry HillSeattle, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500025
Practice locations
Addresses where Iryna M. Sapieha is enrolled with Medicare (CMS data updated October 2, 2026).
- 21601 76th Ave WEdmonds, WA 98026 (425) 640‑4000
- 550 17th AveSeattle, WA 98122 (206) 386‑6787
- 550 17th Ave, Fl ASeattle, WA 98122 (206) 386‑4744
- 747 BroadwaySeattle, WA 98122 (206) 386‑6000
Group practices
Medicare enrollment lists Iryna M. Sapieha as a member of this group (CMS data updated October 2, 2026).
- Swedish Health Services1,037 clinicians in the group
Specialties
- Sleep Medicineprimary
- Internal Medicinealso
Other sleep medicine doctors in Washington
Clinicians with the same Medicare primary specialty in Washington — not a recommendation.
Other clinicians in Swedish Health Services
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1996 (30 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) | 1235389933 |
| 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