EMMA O'NEIL AGNP-C
NPI 1154913150
Nurse Practitioner in Middlebury, CT
About Emma O'neil Agnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EMMA O'NEIL AGNP-C (NPI 1154913150) is an individual nurse practitioner in Middlebury, Connecticut, licensed in Connecticut (9330) and active in the NPI registry since February 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2020).
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 and accepts Medicare assignment
Emma O'neil Agnp-c 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
2Medicare enrollment records show Emma O'neil reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Middlebury, CT 06762
- Reassigned Medicare billing, Connecticut enrollment
- 10 clinicians in this Medicare group
Hamden, CT 06517
- Reassigned Medicare billing, Connecticut enrollment
- 15 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.
Areas of Expertise CMS Part B claims 8
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06762 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.
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 Emma O'neil's NPI number?
The NPI number for Emma O'neil is 1154913150. It was assigned to this individual provider in the NPPES registry on February 10, 2021.
Where is Emma O'neil located?
Emma O'neil practices at 1579 Straits Tpke, Middlebury, CT 06762. The listed phone number is (203) 598-7246.
What is Emma O'neil's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Emma O'neil enrolled in Medicare?
Yes. Emma O'neil 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 Emma O'neil's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Emma O'neil reassigns Medicare benefits to 2 organizations: Interventional Spine & Sports Medicine, PC (Middlebury, CT) and Endocrine Assoc Of Ct LLC (Hamden, CT). 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 Emma O'neil's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Emma O'neil accept?
Health plans from Anthem Blue Cross and Blue Shield list Emma O'neil 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 Emma O'neil was last updated on February 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Emma O'neil, AGNP-C · NPI 1154913150
Nurse Practitioner physician in Middlebury, Connecticut. Individual provider, active in the CMS NPPES registry since February 10, 2021.
## Identity
- **NPI:** 1154913150 (Entity type: Individual)
- **Enumerated:** February 10, 2021
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 9330 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 1579 STRAITS TPKE, Middlebury, CT 06762-1835
- **Phone:** (203) 598-7246
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Interventional Spine & Sports Medicine, PC (NPI 1588983415, Middlebury, CT); Endocrine Assoc Of Ct LLC (NPI 1295929230, Hamden, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** February 10, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1154913150) · Data from the CMS NPPES public registry.