BRETT ARMSTRONG DO
NPI 1942941562
Emergency Medicine in Lewiston, ME
About Brett Armstrong Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BRETT ARMSTRONG DO (NPI 1942941562) is an individual emergency medicine provider in Lewiston, Maine, licensed in Maine (DO4108) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS, is affiliated with Central Maine Medical Center, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Brett Armstrong Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Brett Armstrong reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Norway, ME 04268
- Reassigned Medicare billing, Maine enrollment
- Also billed through NPI 1912094806 (Maine), NPI 1922791417 (Maine)
- 3,140 clinicians in this Medicare group
Brunswick, ME 04011
- Reassigned Medicare billing, Maine enrollment
- 170 clinicians in this Medicare group
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 716 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Central Maine Medical Center
Acute Care Hospitals · Lewiston, MEGood Samaritan Medical Center
Acute Care Hospitals · Brockton, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04240 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LEWISTON, ME 04240
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Brett Armstrong's NPI number?
The NPI number for Brett Armstrong is 1942941562. It was assigned to this individual provider in the NPPES registry on April 6, 2022.
Where is Brett Armstrong located?
Brett Armstrong practices at 300 Main St, Lewiston, ME 04240. The listed phone number is (207) 795-0111.
What is Brett Armstrong's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Brett Armstrong enrolled in Medicare?
Yes. Brett Armstrong is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Brett Armstrong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brett Armstrong reassigns Medicare benefits to 3 organizations: Mainehealth (Norway, ME), Bluewater Emergency Partners Of Brunswick, LLC (Brunswick, ME) and Bmc Affiliated Physicians, Inc. (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Brett Armstrong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Brett Armstrong accept?
Health plans from Taro Health and WellSense Health Plan list Brett Armstrong as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Brett Armstrong affiliated with any hospitals?
According to CMS data, Brett Armstrong is affiliated with Central Maine Medical Center and Good Samaritan Medical Center.
When was this NPI record last updated?
The NPPES record for Brett Armstrong was last updated on December 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Brett Armstrong, DO · NPI 1942941562
Emergency Medicine physician in Lewiston, Maine. Individual provider, active in the CMS NPPES registry since April 6, 2022.
## Identity
- **NPI:** 1942941562 (Entity type: Individual)
- **Enumerated:** April 6, 2022
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** DO4108 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 MAIN ST, Lewiston, ME 04240-7027
- **Phone:** (207) 795-0111
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Mainehealth (NPI 1447730247, Norway, ME); Bluewater Emergency Partners Of Brunswick, LLC (NPI 1043640204, Brunswick, ME); Bmc Affiliated Physicians, Inc. (NPI 1245320910, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of New England, College Of Osteo Medicine, class of 2022
## Record status
- **NPPES last updated:** December 10, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1942941562) · Data from the CMS NPPES public registry.