Quick answers
- Does Briccio J. Guillermo accept Medicare assignment?
- Yes. Medicare's clinician data says Briccio J. Guillermo 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 Briccio J. Guillermo see?
- In 2024, CMS data shows 111 Original Medicare patients and 248 services for Briccio J. Guillermo. This counts Original Medicare only and measures volume, not quality.
- What is Briccio J. Guillermo's NPI number?
- 1417291600. 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 Briccio J. Guillermo, 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 | 111 |
|---|---|
| Services billed to Medicare | 248 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)51 services
- Fusion of spine in lower back (22612)38 services
- Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment (63047)26 services
- Fusion of additional segment of spine (22614)24 services
- Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment (63048)20 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%
- Arthritis75%
- High blood pressure69%
- Ischemic heart disease29%
- Chronic kidney disease23%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)21%
Hospitals where Briccio J. Guillermo works
Medicare's Facility Affiliation Data lists Briccio J. Guillermo 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.
- Olympic Medical CenterPort Angeles, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500072
- Swedish IssaquahIssaquah, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500152
- 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 Briccio J. Guillermo is enrolled with Medicare (CMS data updated October 2, 2026).
- 500 17th AveSeattle, WA 98122 (206) 320‑2000
- 550 17th AveSeattle, WA 98122
- 747 BroadwaySeattle, WA 98122 (206) 386‑6000
- 751 NE Blakely DrIssaquah, WA 98029
Group practices
Medicare enrollment lists Briccio J. Guillermo as a member of this group (CMS data updated October 2, 2026).
- Swedish Health Services1,037 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Seattle
Clinicians with the same Medicare primary specialty in Seattle, WA — 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 | PA |
|---|---|
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1417291600 |
| 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