MS. COLETTE JULIA O'CONNOR ACNPC-AG
NPI 1003653700
Nurse Practitioner in Worcester, MA
About Ms. Colette Julia O'connor Acnpc-ag NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. COLETTE JULIA O'CONNOR ACNPC-AG (NPI 1003653700) is an individual nurse practitioner in Worcester, Massachusetts, licensed in Massachusetts (RN2371647) and active in the NPI registry since July 2024. She is enrolled in Medicare PECOS, is affiliated with Umass Memorial Medical Center/university Campus, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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
Ms. Colette Julia O'connor Acnpc-ag 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 Colette O'connor reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Worcester, MA 01655
- Reassigned Medicare billing, Massachusetts enrollment
- 2,902 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Umass Memorial Medical Center/University Campus
Acute Care Hospitals · Worcester, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01655 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.
WORCESTER, MA 01655
WORCESTER, MA 01655
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 Colette O'connor's NPI number?
The NPI number for Colette O'connor is 1003653700. It was assigned to this individual provider in the NPPES registry on July 10, 2024.
Where is Colette O'connor located?
Colette O'connor practices at 55 Lake Ave N, Worcester, MA 01655. The listed phone number is (774) 443-7552.
What is Colette O'connor's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Colette O'connor enrolled in Medicare?
Yes. Colette O'connor 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 Colette O'connor's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Colette O'connor reassigns Medicare benefits to 3 organizations: Umass Memorial Medical Group Inc (Worcester, MA), The General Hospital Corporation (Boston, MA) and Massachusetts General Physicians Organization 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 Colette O'connor's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Colette O'connor affiliated with any hospitals?
According to CMS data, Colette O'connor is affiliated with Umass Memorial Medical Center/University Campus.
When was this NPI record last updated?
The NPPES record for Colette O'connor was last updated on April 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Ms. Colette Julia O'connor, ACNPC-AG · NPI 1003653700
Nurse Practitioner physician in Worcester, Massachusetts. Individual provider, active in the CMS NPPES registry since July 10, 2024.
## Identity
- **NPI:** 1003653700 (Entity type: Individual)
- **Enumerated:** July 10, 2024
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** RN2371647 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 LAKE AVE N, Worcester, MA 01655-0002
- **Phone:** (774) 443-7552
## 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): Umass Memorial Medical Group Inc (NPI 1760445373, Worcester, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** April 6, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1003653700) · Data from the CMS NPPES public registry.