Quick answers
- Which hospitals does David L. Brennick work at?
- Medicare's official clinician data lists David L. Brennick at 2 hospitals: Cascade Valley Hospital and Island Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David L. Brennick see patients?
- Medicare's clinician data lists 1 practice location in Anacortes, WA. Call before your visit to confirm the address.
- What is David L. Brennick's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does David L. Brennick accept Medicare assignment?
- Yes. Medicare's clinician data says David L. Brennick accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for David L. Brennick?
- (360) 299-1300, as listed in official Medicare / NPI Registry data.
- What is David L. Brennick's NPI number?
- 1447379185. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David L. Brennick works
Medicare's Facility Affiliation Data lists David L. Brennick at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Cascade Valley HospitalArlington, WA · Acute Care Hospital · CCN 500060
- Island HospitalAnacortes, WA · Acute Care Hospital · CCN 500007
Practice locations
Addresses where David L. Brennick is enrolled with Medicare (CMS data updated 2026-10-02).
- 1211 24th StAnacortes, WA 98221 (360) 299‑1300
Group practices
Medicare enrollment lists David L. Brennick as a member of this group (CMS data updated 2026-10-02).
- Northwest Emergency Physicians LLC271 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Anacortes
Clinicians with the same Medicare primary specialty in Anacortes, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1447379185 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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