MRS. ERIN L HALLINAN APRN
NPI 1255560850
Nurse Practitioner - Family in Bridgeport, CT
About Mrs. Erin L Hallinan Aprn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. ERIN L HALLINAN APRN (NPI 1255560850) is an individual family provider in Bridgeport, Connecticut, licensed in Connecticut (003724) and active in the NPI registry since July 2009. She is enrolled in Medicare PECOS and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
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
Mrs. Erin L Hallinan Aprn 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 Erin Hallinan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New Haven, CT 06519
- Reassigned Medicare billing, Connecticut enrollment
- 3,728 clinicians in this Medicare group
Torrington, CT 06790
- Reassigned Medicare billing, Connecticut enrollment
- 288 clinicians in this Medicare group
Hartford, CT 06106
- Reassigned Medicare billing, Connecticut enrollment
- 1,921 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 3
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 06606 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.
BRIDGEPORT, CT 06606
BRIDGEPORT, CT 06606
BRIDGEPORT, CT 06606
BRIDGEPORT, CT 06606
BRIDGEPORT, CT 06606
BRIDGEPORT, CT 06606
BRIDGEPORT, CT 06606
BRIDGEPORT, CT 06606
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 Erin Hallinan's NPI number?
The NPI number for Erin Hallinan is 1255560850. It was assigned to this individual provider in the NPPES registry on July 6, 2009.
Where is Erin Hallinan located?
Erin Hallinan practices at 2800 Main Street Saint Vincent's Medical Center, Bridgeport, CT 06606. The listed phone number is (203) 576-5789.
What is Erin Hallinan's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Erin Hallinan enrolled in Medicare?
Yes. Erin Hallinan 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 Erin Hallinan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Erin Hallinan reassigns Medicare benefits to 3 organizations: Yale University (New Haven, CT), Neighborhood Health, Inc. (Torrington, CT) and Hartford Healthcare Medical Group Specialists, PLLC (Hartford, 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 Erin Hallinan'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 Erin Hallinan was last updated on December 5, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Mrs. Erin L Hallinan, APRN · NPI 1255560850
Family physician in Bridgeport, Connecticut. Individual provider, active in the CMS NPPES registry since July 6, 2009.
## Identity
- **NPI:** 1255560850 (Entity type: Individual)
- **Enumerated:** July 6, 2009
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 003724 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 2800 MAIN STREET, SAINT VINCENT'S MEDICAL CENTER, Bridgeport, CT 06606
- **Phone:** (203) 576-5789
## 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): Yale University (NPI 1124148887, New Haven, CT); Neighborhood Health, Inc. (NPI 1043544489, Torrington, CT); Hartford Healthcare Medical Group Specialists, PLLC (NPI 1023584216, Hartford, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** December 5, 2014
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Source: [NPI Profile](https://npiprofile.com/npi/1255560850) · Data from the CMS NPPES public registry.