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

Mrs. Kerrianne O'Brien Barreto, NP-C

Individual provider Acute Care Nurse Practitioner · NPI 1124421862

Mrs. Kerrianne O'Brien Barreto, NP-C is a Nurse Practitioner in Worcester, Massachusetts. Qualified in 2014, 12 years ago. Practices with Integral Health Partners LLC, a 9-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
12
Licensed in
MA
In the registry since
2014
What do these letters mean?
NP-C — Nurse Practitioner, Certified
A nurse practitioner certified by the AANP.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

416 Belmont St
Worcester, MA 01604
Phone: (915) 667-2684
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence RN283028 (MA)

Record details

NPI number1124421862
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP-C
Sole proprietorNo
NPI enumeratedOctober 8, 2014
Last updated in NPPESNovember 24, 2025
Certification dateNovember 24, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Integral Health Partners Llc — 9 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 patients185
Services billed 1,092 a service is one billed item, such as a visit, a test or a procedure
Average patient age83

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.

Colleagues at Integral Health Partners LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 9 clinicians in the practice; 7 are shown here.

Other providers in Worcester