Quick answers
- Does Ziad M. Shwaiki accept Medicare assignment?
- Yes. Medicare's clinician data says Ziad M. Shwaiki 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 Ziad M. Shwaiki see?
- In 2024, CMS data shows 460 Original Medicare patients and 503 services for Ziad M. Shwaiki. This counts Original Medicare only and measures volume, not quality.
- What is Ziad M. Shwaiki's NPI number?
- 1740843515. 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 Ziad M. Shwaiki, 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 | 460 |
|---|---|
| Services billed to Medicare | 503 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)391 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)41 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)19 services
- Critical care, first 30-74 minutes (99291)14 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%
- High cholesterol75%
- Arthritis57%
- Heart failure51%
- Chronic kidney disease48%
- Ischemic heart disease46%
Hospitals where Ziad M. Shwaiki works
Medicare's Facility Affiliation Data lists Ziad M. Shwaiki 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.
- Capital Medical CenterOlympia, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500139
- Multicare Good Samaritan HospitalPuyallup, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500079
- Tacoma General Allenmore HospitalTacoma, WA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 500129
Practice locations
Addresses where Ziad M. Shwaiki is enrolled with Medicare (CMS data updated October 2, 2026).
- 16251 Sylvester Rd SWBurien, WA 98166 (206) 244‑9970
- 315 Martin Luther King Jr WayTacoma, WA 98405 (253) 403‑1000
- 407 14th Ave SEPuyallup, WA 98372 (253) 697‑4000
Group practices
Medicare enrollment lists Ziad M. Shwaiki as a member of this group (CMS data updated October 2, 2026).
- South Sound Inpatient Physicians PLLC422 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Burien
Clinicians with the same Medicare primary specialty in Burien, WA — not a recommendation.
Other clinicians in South Sound Inpatient Physicians PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2019 (7 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740843515 |
| 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