Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mrs. Erin L Hallinan, APRN

Individual provider Family Nurse Practitioner · NPI 1255560850

Mrs. Erin L Hallinan, APRN is a Nurse Practitioner in Bridgeport, Connecticut. Qualified in 2007, 19 years ago. Practices with Hartford Healthcare Medical Group Specialists PLLC, a 1,537-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
19
Licensed in
CT
In the registry since
2009
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

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Practice location Address checks out

2800 Main Street Saint Vincent's Medical Ctr
Bridgeport, CT 06606 Not confirmed with CMS for 11 years — call before visiting
Phone: (203) 576-5789
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 003724 (CT)

Record details

NPI number1255560850
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN
Sole proprietorNo
NPI enumeratedJuly 6, 2009
Last updated in NPPESDecember 5, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Hartford Healthcare Medical Group Specialists Pllc — 1537 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients54
Services billed 153 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Hartford Healthcare Medical Group Specialists PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1537 clinicians in the practice; 12 are shown here.

Other providers in Bridgeport