ALEXANDER L MESROBIAN MD
NPI 1134100332
Emergency Medicine - Emergency Medical Services in Damariscotta, ME
About Alexander L Mesrobian Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER L MESROBIAN MD (NPI 1134100332) is an individual emergency medical services provider in Damariscotta, Maine, licensed in Maine (012127) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Alexander L Mesrobian Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Alexander Mesrobian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Damariscotta, ME 04543
- Reassigned Medicare billing, Maine enrollment
- Also billed through NPI 1912094806 (Maine)
- 3,140 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04543 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
DAMARISCOTTA, ME 04543
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 Alexander Mesrobian's NPI number?
The NPI number for Alexander Mesrobian is 1134100332. It was assigned to this individual provider in the NPPES registry on November 7, 2005.
Where is Alexander Mesrobian located?
Alexander Mesrobian practices at 35 Miles St Miles Medical Group Emergency Dept, Damariscotta, ME 04543. The listed phone number is (207) 563-4521.
What is Alexander Mesrobian's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Emergency Medical Services, with taxonomy code 207PE0004X.
Is Alexander Mesrobian enrolled in Medicare?
Yes. Alexander Mesrobian is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Alexander Mesrobian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Mesrobian reassigns Medicare benefits to Mainehealth (Damariscotta, ME). The 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 Alexander Mesrobian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Alexander Mesrobian was last updated on September 18, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.