Quick answers
- Does William P. Brenton accept Medicare assignment?
- Yes. Medicare's clinician data says William P. Brenton 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 William P. Brenton see?
- In 2024, CMS data shows 485 Original Medicare patients and 1,335 services for William P. Brenton. This counts Original Medicare only and measures volume, not quality.
- What is William P. Brenton's NPI number?
- 1154706190. 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 William P. Brenton, 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 | 485 |
|---|---|
| Services billed to Medicare | 1,335 |
| Different services or procedures | 12 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)646 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)493 services
- Anticoagulant management of patient taking warfarin (93793)92 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)44 services
- Routine electrocardiogram (ecg) using at least 12 leads with tracing (93005)19 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%
- Atrial fibrillation75%
- Arthritis47%
- Ischemic heart disease45%
- Heart failure43%
Hospitals where William P. Brenton works
Medicare's Facility Affiliation Data lists William P. Brenton 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.
- Cascade Valley HospitalArlington, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500060
- Island HospitalAnacortes, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500007
- PeaceHealth St Joseph Medical CenterBellingham, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 500030
- PeaceHealth United General Medical CenterSedro Woolley, WA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 501329
- Skagit Valley HospitalMount Vernon, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500003
Practice locations
Addresses where William P. Brenton is enrolled with Medicare (CMS data updated October 2, 2026).
- 1801 E Division StMount Vernon, WA 98274 (360) 424‑4410
- 2979 Squalicum Pkwy, Suite 101Bellingham, WA 98225 (360) 756‑6800
Group practices
Medicare enrollment lists William P. Brenton as a member of these groups (CMS data updated October 2, 2026).
- Public Hospital Dist No 1 Skagit323 clinicians in the group
- PeaceHealth298 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Mount Vernon
Clinicians with the same Medicare primary specialty in Mount Vernon, WA — not a recommendation.
Other clinicians in Public Hospital Dist No 1 Skagit
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1154706190 |
| 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