EILY COURNOYER MD
NPI 1871053306
Pediatrics in Boston, MA
About Eily Cournoyer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EILY COURNOYER MD (NPI 1871053306) is an individual pediatrics provider in Boston, Massachusetts, licensed in Massachusetts (1018533) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Eily Cournoyer Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Eily Cournoyer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 1,358 clinicians in this Medicare group
Cincinnati, OH 45229
- Reassigned Medicare billing, Ohio enrollment
- 2,080 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 02115 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.
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Eily Cournoyer's NPI number?
The NPI number for Eily Cournoyer is 1871053306. It was assigned to this individual provider in the NPPES registry on March 21, 2019.
Where is Eily Cournoyer located?
Eily Cournoyer practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.
What is Eily Cournoyer's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Eily Cournoyer enrolled in Medicare?
Yes. Eily Cournoyer is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Eily Cournoyer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Eily Cournoyer reassigns Medicare benefits to 2 organizations: Children's Hospital Pediatric Associates, Inc (Boston, MA) and Children's Hospital Medical Center (Cincinnati, OH). 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 Eily Cournoyer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Eily Cournoyer accept?
Health plans from Taro Health list Eily Cournoyer 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.
When was this NPI record last updated?
The NPPES record for Eily Cournoyer was last updated on January 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.
# Eily Cournoyer, MD · NPI 1871053306
Pediatrics physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 21, 2019.
## Identity
- **NPI:** 1871053306 (Entity type: Individual)
- **Enumerated:** March 21, 2019
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 1018533 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 LONGWOOD AVE, Boston, MA 02115-5724
- **Phone:** (617) 355-6000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Children's Hospital Pediatric Associates, Inc (NPI 1457306664, Boston, MA); Children's Hospital Medical Center (NPI 1609915784, Cincinnati, OH) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 16, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1871053306) · Data from the CMS NPPES public registry.