Quick answers
- Which hospitals does Mark Daniels work at?
- Medicare's official clinician data lists Mark Daniels at 5 hospitals: PeaceHealth Ketchikan Medical Center, PeaceHealth Peace Island Medical Center, PeaceHealth St Joseph Medical Center, PeaceHealth United General Medical Center and Skagit Valley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark Daniels see patients?
- Medicare's clinician data lists 3 practice locations, including Sedro Woolley, WA, Ketchikan, AK and Lynden, WA. Call before your visit to confirm the address.
- What is Mark Daniels's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
- Does Mark Daniels accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Daniels 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 Mark Daniels?
- (360) 856-4141, as listed in official Medicare / NPI Registry data.
- What is Mark Daniels's NPI number?
- 1831149905. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark Daniels works
Medicare's Facility Affiliation Data lists Mark Daniels at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- PeaceHealth Ketchikan Medical CenterKetchikan, AK · Critical Access Hospital · CCN 021311
- PeaceHealth Peace Island Medical CenterFriday Harbor, WA · Critical Access Hospital · CCN 501340
- PeaceHealth St Joseph Medical CenterBellingham, WA · Acute Care Hospital · CCN 500030
- PeaceHealth United General Medical CenterSedro Woolley, WA · Critical Access Hospital · CCN 501329
- Skagit Valley HospitalMount Vernon, WA · Acute Care Hospital · CCN 500003
Practice locations
Addresses where Mark Daniels is enrolled with Medicare (CMS data updated 2026-10-02).
- 1990 Hospital Dr, Suite 100Sedro Woolley, WA 98284 (360) 856‑4141
- 3100 Tongass AveKetchikan, AK 99901 (907) 228‑8300
- 8844 Benson RdLynden, WA 98264 (360) 318‑0260
Group practices
Medicare enrollment lists Mark Daniels as a member of these groups (CMS data updated 2026-10-02).
- PeaceHealth298 clinicians in the group
- PeaceHealth70 clinicians in the group
- PeaceHealth Medical Group - Sedro Woolley55 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Washington →
Other cardiologists in Sedro Woolley
Clinicians with the same Medicare primary specialty in Sedro Woolley, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York Medical College |
| Graduation year | 1986 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831149905 |
| 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