Quick answers
- Which hospitals does Matthew N. Rosner work at?
- Medicare's official clinician data lists Matthew N. Rosner at 4 hospitals: Cascade Valley Hospital, Island Hospital, Skagit Valley Hospital and Whidbeyhealth Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Matthew N. Rosner see patients?
- Medicare's clinician data lists 1 practice location in Mount Vernon, WA. Call before your visit to confirm the address.
- What is Matthew N. Rosner's specialty?
- Medicare lists Endocrinology as the primary specialty.
- Does Matthew N. Rosner accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew N. Rosner 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.
- Does Matthew N. Rosner offer telehealth?
- Medicare's clinician data says Matthew N. Rosner offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Matthew N. Rosner?
- (360) 428-2500, as listed in official Medicare / NPI Registry data.
- What is Matthew N. Rosner's NPI number?
- 1497118996. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Matthew N. Rosner works
Medicare's Facility Affiliation Data lists Matthew N. Rosner 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
- Skagit Valley HospitalMount Vernon, WA · Acute Care Hospital · CCN 500003
- Whidbeyhealth Medical CenterCoupeville, WA · Critical Access Hospital · CCN 501339
Practice locations
Addresses where Matthew N. Rosner is enrolled with Medicare (CMS data updated 2026-10-02).
- 1400 E Kincaid StMount Vernon, WA 98274 (360) 428‑2500
Group practices
Medicare enrollment lists Matthew N. Rosner as a member of this group (CMS data updated 2026-10-02).
- Public Hospital Dist No 1 Skagit323 clinicians in the group
Specialties
- Endocrinologyprimary
Other endocrinologists in Washington
Clinicians with the same Medicare primary specialty in Washington — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Touro Un Col Of Osteopathic Medicine, Henderson |
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1497118996 |
| 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