Individual provider Active NPI

Marion Tilearcio, PA-C

  • Physician Assistant
  • Boston, MA
National Provider Identifier
1659898518
Registry record updated Feb 5, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
PA6339 Issued in MA
Practice address
1 Boston Medical Center Place
Dowling One South
Boston, MA 02118-2908
Phone
(617) 414-5481
NPI assigned
Aug 23, 2017
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 5, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X PA6339 MA Primary

Addresses

Primary practice location

1 Boston Medical Center Place
Dowling One South
Boston, MA 02118-2908

Mailing address

BMC Provider Enrollment Office
960 Massachusetts Ave,.2ND Floor
Boston, MA 02118
Phone (617) 414-5405

Other practice location 1

55 Fruit St
Boston, MA 02114-2621
Phone (617) 726-3030

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
I20180208000582 MA Practitioner - Physician Assistant 6204196496 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Boston University School of Medicine, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

1493 Cambridge St
Cambridge, MA 02139-1047
Phone (617) 665-1000

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
PA6339MAMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
General Hospital Corp Current Accepting new patients
Massachusetts General Physicians Organization Inc CurrentSince Oct 6, 2025 Accepting new patients
Cambridge Public Health Commission CurrentSince Dec 12, 2025 Accepting new patients

Locations

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

55 Fruit St
Boston, MA 02114

1493 Cambridge St
Cambridge, MA 02139
Phone (617) 665-1185

103 Garland St
Everett, MA 02149
Phone (617) 381-7150

Interoperability endpoints

  • Direct secure messaging: tilearcio.marion.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 10

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": "1503446400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770249600000",
    "number": "1659898518",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "BMC PROVIDER ENROLLMENT OFFICE",
            "address_2": "960 MASSACHUSETTS AVE,.2ND FLOOR",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "02118",
            "telephone_number": "617-414-5405"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 BOSTON MEDICAL CENTER PLACE",
            "address_2": "DOWLING ONE SOUTH",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021182908",
            "telephone_number": "617-414-5481"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "55 Fruit St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021142621",
            "country_code": "US",
            "telephone_number": "617-726-3030",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TILEARCIO",
        "first_name": "MARION",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-08-23",
        "last_updated": "2026-02-05",
        "certification_date": "2026-02-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MA",
            "license": "PA6339",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.