John Armstrong, MD
NPI 1952893406 · Family Medicine Physician · Bangor, ME
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Armstrong, MD is a Family Medicine Physician provider in Bangor, ME (NPI 1952893406).
Provider details
- NPI number
- 1952893406
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD24735 (ME)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 195 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 687 | 180 |
| Levothyroxine Sodium | 516 | 113 |
| Pantoprazole Sodium | 480 | 102 |
| Lisinopril | 465 | 116 |
| Furosemide | 447 | 91 |
| Gabapentin | 380 | 84 |
| Apixabanbrand: Eliquis |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$136 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 242 Brunswick StOld Town, ME 04468-1613Phone: (207) 827-6128Fax: (207) 827-6605
Registry dates
- Enumerated
- 2018-05-31
- Last updated
- 2021-06-21
- Certified
- 2021-06-21
Frequently asked questions
- What is John Armstrong's NPI number?
- John Armstrong's National Provider Identifier (NPI) is 1952893406, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Armstrong's specialty?
- John Armstrong is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Armstrong located?
- John Armstrong's practice location on file with NPPES is 895 Union St Ste 12, Bangor, ME 04401-3054.
- What is John Armstrong's phone number?
- The practice phone number listed in the NPPES registry for John Armstrong is (207) 973-7979.
- Does John Armstrong accept Medicare?
- John Armstrong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Armstrong's NPI active?
- Yes — John Armstrong's NPI (1952893406) is active in the NPPES registry as of the last update on 2021-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.