Individual provider Active NPI

Ilse Castro-Aragon, M.D.

  • Diagnostic Radiology Physician
  • Boston, MA
National Provider Identifier
1043244221
Registry record updated Mar 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
227109 Issued in MA
Practice address
840 Harrison Ave
Boston, MA 02118-2905
Phone
(617) 638-6610
Fax
(617) 638-6616
NPI assigned
Jul 11, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 2, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X 227109 MA Primary
Pediatric Radiology Physician 2085P0229X 227109 MA

Addresses

Primary practice location

840 Harrison Ave
Boston, MA 02118-2905

Mailing address

960 Massachusetts Ave
FL 2
Boston, MA 02118-2690

Other practice location 1

235 North Pearl St
Brockton, MA 02301
Phone (508) 427-2665

Other practice location 2

736 Cambridge St
Brighton, MA 02135
Phone (617) 789-3000

Other practice location 3

10 Gove Street
East Boston, MA 02128
Phone (617) 569-5800

Other identifiers 3

IdentifierTypeStateIssuer
3092332MedicaidNH
1043244221MedicaidME
110075074AMedicaidMA

Other names 1

  • Ilse Maria Castro-Aragon Other 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: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20070120000039 MA Practitioner - Diagnostic RadiologyPractitioner - Pediatric Medicine 0840291787 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Other, 1995
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Boston University Medical Center Radiologists, Inc.Group PAC ID 1052392768, 61 clinicians

Practice addresses (Care Compare)

1 Boston Medical Ctr PL
Boston, MA 02118-2908
Phone (617) 638-6610

840 Harrison Ave
Boston, MA 02118-2905
Phone (617) 638-6610

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
227109MAMDPediatric Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Neighborhealth Corporation CurrentSince Feb 1, 2014 Accepting new patients
Internal Medical Associates-Ebnhc CurrentSince Feb 1, 2014 Accepting new patients
Boston University Medical Center Radiologists, Inc. Pediatric Radiology CurrentSince Nov 14, 2006 Accepting new patients
Boston Medical Center Corporation Current Accepting new patients
BMC Affiliated Physicians, Inc. Diagnostic Radiology CurrentSince Dec 17, 2025 Accepting new patients

Locations

960 Massachusetts Ave
Ste 2
Boston, MA 02118

88 Newton St
Boston, MA 02118
Phone (617) 638-7350

736 Cambridge St
Brighton, MA 02135
Phone (617) 789-2762

235 N Pearl St
Brockton, MA 02301
Phone (508) 427-2525

10 Grove St
East Boston, MA 02128
Phone (617) 569-5800

801 Albany St
Fl G
Roxbury, MA 02119

720 Harrison Ave
#503
Roxbury, MA 02118
Phone 6174145404 ext. 2

Interoperability endpoints

  • Direct secure messaging: icastroaragon9737@direct.bmc.masshiway.net
  • Direct secure messaging: icastroaragon251961@direct.bostonchildrens.org

Organizations & group practices 5

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": "1152576000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772409600000",
    "number": "1043244221",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "960 MASSACHUSETTS AVE",
            "address_2": "FL 2",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021182690"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "840 HARRISON AVE",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021182905",
            "telephone_number": "617-638-6610",
            "fax_number": "617-638-6616"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "235 North Pearl St",
            "address_purpose": "LOCATION",
            "city": "Brockton",
            "state": "MA",
            "postal_code": "02301",
            "country_code": "US",
            "telephone_number": "508-427-2665",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "736 Cambridge St",
            "address_purpose": "LOCATION",
            "city": "Brighton",
            "state": "MA",
            "postal_code": "02135",
            "country_code": "US",
            "telephone_number": "617-789-3000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "10 Gove Street",
            "address_purpose": "LOCATION",
            "city": "East Boston",
            "state": "MA",
            "postal_code": "02128",
            "country_code": "US",
            "telephone_number": "617-569-5800",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CASTRO-ARAGON",
        "first_name": "ILSE",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-07-11",
        "last_updated": "2026-03-02",
        "certification_date": "2026-03-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "MA",
            "license": "227109",
            "primary": true
        },
        {
            "code": "2085P0229X",
            "taxonomy_group": "",
            "desc": "Radiology, Pediatric Radiology",
            "state": "MA",
            "license": "227109",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3092332",
            "state": "NH"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1043244221",
            "state": "ME"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110075074A",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "ILSE",
            "last_name": "CASTRO-ARAGON",
            "middle_name": "MARIA",
            "credential": "M.D.",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.