Quick answers
- Where does Andrew C. Armstrong see patients?
- Medicare's clinician data lists 2 practice locations, including Plymouth, NH. Call before your visit to confirm the address.
- What is Andrew C. Armstrong's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Andrew C. Armstrong accept Medicare assignment?
- Medicare's clinician data says Andrew C. Armstrong may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Andrew C. Armstrong?
- (603) 536-1443, as listed in official Medicare / NPI Registry data.
- What is Andrew C. Armstrong's NPI number?
- 1841364650. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Andrew C. Armstrong is enrolled with Medicare (CMS data updated 2026-10-02).
- 113 A Main StPlymouth, NH 03264 (603) 536‑1443
- 113 A Main St, PO Box 119Plymouth, NH 03264
Specialties
- Optometryprimary
Other optometrists in New Hampshire
Clinicians with the same Medicare primary specialty in New Hampshire — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Medical school | New England College Of Optometry |
| Graduation year | 1980 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1841364650 |
| 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
- 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