Individual provider Active NPI

Caitlin O'Callaghan Reen, NP

  • Adult Health Nurse Practitioner
  • Boston, MA
National Provider Identifier
1033391685
Registry record updated Feb 18, 2016
On this page

Key facts

NPPES NPI Registry
Primary specialty
Adult Health Nurse PractitionerTaxonomy code 363LA2200X
License
256018 Issued in MA
Practice address
55 Fruit St
Gray / Bigelow 800, Mailstop 843
Boston, MA 02114-2621
Phone
(617) 724-0122
NPI assigned
Dec 5, 2007
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Feb 18, 2016

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Adult Health Nurse Practitioner 363LA2200X 256018 MA Primary

Addresses

Primary practice location

55 Fruit St
Gray / Bigelow 800, Mailstop 843
Boston, MA 02114-2621

Mailing address

73 Chelsea St
Apartment 307
Charlestown, MA 02129-2039

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
I20080403000282 MA Practitioner - Nurse Practitioner 1658458468 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2007
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Massachusetts General Physicians Organization IncGroup PAC ID 2466365820, 3,494 clinicians

Practice addresses (Care Compare)

55 Fruit St
Boston, MA 02114-2696
Phone (617) 724-0287

Hospital & facility affiliations

  • Massachusetts General Hospital Hospital, Boston, MA, CCN 220071
  • Newton-Wellesley Hospital Hospital, Newton, MA, CCN 220101
  • North Shore Medical Center - Hospital, Salem, MA, CCN 220035
  • Brigham and Women'S Hospital Hospital, Boston, MA, CCN 220110
  • Martha'S Vineyard Hospital Inc Hospital, Oak Bluffs, MA, CCN 221300

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
General Hospital Corp Current Accepting new patients
The General Hospital Corporation CurrentSince Jul 1, 2016 Accepting new patients
Massachusetts General Physicians Organization Inc CurrentSince May 13, 2010 Accepting new patients
Signify Health Medical Associates, PLLC CurrentSince Sep 6, 2023 Accepting new patients

Locations

55 Fruit St
#800
Boston, MA 02114
Phone (617) 724-8052

55 Fruit St
Boston, MA 02114

55 Fruit St
#2
Boston, MA 02114
Phone (617) 726-2967

155 Federal St
Ste 700
Boston, MA 02110
Phone (469) 466-7420

4055 Valley View Ln
Ste 400
Dallas, TX 75244
Phone (469) 466-7037

Interoperability endpoints

  • Direct secure messaging: reen.caitlin.mgh@direct.partners.masshiway.net

Organizations & group practices 4

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.

Hospital & facility affiliations 5

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1196812800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1455753600000",
    "number": "1033391685",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "73 CHELSEA ST",
            "address_2": "APARTMENT 307",
            "city": "CHARLESTOWN",
            "state": "MA",
            "postal_code": "021292039"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "address_2": "GRAY / BIGELOW 800, MAILSTOP 843",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142621",
            "telephone_number": "617-724-0122"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "REEN",
        "first_name": "CAITLIN",
        "middle_name": "O'CALLAGHAN",
        "credential": "NP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2007-12-05",
        "last_updated": "2016-02-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "MA",
            "license": "256018",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.