Individual provider Active NPI

Kerrianne O'Brien Barreto, NP-C

  • Acute Care Nurse Practitioner
  • Worcester, MA
National Provider Identifier
1124421862
Registry record updated Nov 24, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Acute Care Nurse PractitionerTaxonomy code 363LA2100X
License
RN283028 Issued in MA
Practice address
416 Belmont St
Worcester, MA 01604
Phone
(915) 667-2684
NPI assigned
Oct 8, 2014
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 24, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Acute Care Nurse Practitioner 363LA2100X RN283028 MA Primary

Addresses

Primary practice location

416 Belmont St
Worcester, MA 01604

Mailing address

67 Millbrook St Ste 406a
Worcester, MA 01606-2845
Phone (508) 283-4513

Other names 1

  • Kerrianne O'Brien Hanlon Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20190301000866 MA Practitioner - Nurse Practitioner 3476870254 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Integral Health Partners LLCGroup PAC ID 2264842087, 8 clinicians

Practice addresses (Care Compare)

67 Millbrook St
Suite 406a
Worcester, MA 01606-2845
Phone (413) 512-1529

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
RN283028MAMDAcute Care Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Worcester Internal Medicine, Inc. CurrentSince Jan 5, 2019 Accepting new patients
Integral Health Partners LLC CurrentSince Aug 12, 2020 Accepting new patients

Locations

32 Mayo Dr
Holden, MA 01520
Phone (508) 829-1217

416 Belmont St
Worcester, MA 01604
Phone (508) 756-1808

416 Belmont St
Ste 1
Worcester, MA 01604
Phone (508) 756-6609

67 Millbrook St
Ste 406B
Worcester, MA 01606
Phone (413) 512-1529

67 Millbrook St
Ste 406A
Worcester, MA 01606
Phone (508) 283-4513

Interoperability endpoints

  • FHIR API: https://fhir4.healow.com/fhir/r4/IGFCDD

Ownership & related parties

All facility ownership & control disclosures 1

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
Holden Rehabilitation and Nursing CenterHolden, MA, CCN 225002 Skilled nursing facility Adp of the SNF Dec 17, 2021

Owned or controlled facilities with NPI records 1

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

Organizations & group practices 2

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1412726400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763942400000",
    "number": "1124421862",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "67 MILLBROOK ST STE 406A",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "016062845",
            "telephone_number": "508-283-4513",
            "fax_number": "508-469-4057"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "416 BELMONT ST",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "01604",
            "telephone_number": "915-667-2684"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BARRETO",
        "first_name": "KERRIANNE",
        "middle_name": "O'BRIEN",
        "name_prefix": "Mrs.",
        "credential": "NP-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2014-10-08",
        "last_updated": "2025-11-24",
        "certification_date": "2025-11-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "MA",
            "license": "RN283028",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "KERRIANNE",
            "last_name": "HANLON",
            "middle_name": "O'BRIEN",
            "credential": "APRN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Worcester, MA

Sources for this page

Verify at the official NPI Registry.