Timothy Armstrong, MD
NPI 1871641688 · Neurology Physician · Bellingham, WA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Armstrong, MD is a Neurology Physician provider in Bellingham, WA (NPI 1871641688).
Provider details
- NPI number
- 1871641688
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD60913179 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
791 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 182 | $44 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 130 | $94 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 127 | $65 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 124 | $140 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 63 | $128 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 236 | 72 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa Er | 172 | 37 |
| Levetiracetam | 170 | 43 |
| Donepezil Hcl | 168 | 56 |
| Lamotrigine | 140 | 32 |
| Gabapentin | 109 | 36 |
| Pramipexole Di-Hclbrand: Pramipexole Dihydrochloride | 95 | 22 |
Practice location
Mailing address
Additional practice locations (1)
- 4647 Zion AveSan Diego, CA 92120-2507Phone: (619) 528-5000
Registry dates
- Enumerated
- 2007-01-08
- Last updated
- 2019-07-24
Frequently asked questions
- What is Timothy Armstrong's NPI number?
- Timothy Armstrong's National Provider Identifier (NPI) is 1871641688, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Armstrong's specialty?
- Timothy Armstrong is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Armstrong located?
- Timothy Armstrong's practice location on file with NPPES is Peacehealth Medical Group, Bellingham, WA 98225.
- What is Timothy Armstrong's phone number?
- The practice phone number listed in the NPPES registry for Timothy Armstrong is (360) 788-6870.
- Does Timothy Armstrong accept Medicare?
- Timothy Armstrong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Armstrong's NPI active?
- Yes — Timothy Armstrong's NPI (1871641688) is active in the NPPES registry as of the last update on 2019-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.