Quick answers
- Which hospitals does Timothy P. Armstrong work at?
- Medicare's official clinician data lists Timothy P. Armstrong at 3 hospitals: PeaceHealth Peace Island Medical Center, PeaceHealth St Joseph Medical Center and PeaceHealth United General Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Timothy P. Armstrong see patients?
- Medicare's clinician data lists 2 practice locations, including Bellingham, WA. Call before your visit to confirm the address.
- What is Timothy P. Armstrong's specialty?
- Medicare lists Neurology as the primary specialty, and also Internal Medicine.
- Does Timothy P. Armstrong accept Medicare assignment?
- Yes. Medicare's clinician data says Timothy P. Armstrong 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 Timothy P. Armstrong offer telehealth?
- Medicare's clinician data says Timothy P. Armstrong offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Timothy P. Armstrong?
- (360) 788-6870, as listed in official Medicare / NPI Registry data.
- What is Timothy P. Armstrong's NPI number?
- 1871641688. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Timothy P. Armstrong works
Medicare's Facility Affiliation Data lists Timothy P. Armstrong at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- 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
Practice locations
Addresses where Timothy P. Armstrong is enrolled with Medicare (CMS data updated 2026-10-02).
- 3015 Squalicum PkwyBellingham, WA 98225
- 710 Birchwood Ave, Suite 201Bellingham, WA 98225 (360) 788‑6870
Group practices
Medicare enrollment lists Timothy P. Armstrong as a member of this group (CMS data updated 2026-10-02).
- PeaceHealth298 clinicians in the group
Specialties
- Neurologyprimary
- Internal Medicinealso
Other neurologists in Bellingham
Clinicians with the same Medicare primary specialty in Bellingham, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Chicago, Pritzker School Of Medicine |
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1871641688 |
| 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