Active NPI
Brett Cassidy, MD
- Anatomic Pathology & Clinical Pathology Physician
- Boston, MA
National Provider Identifier
1255126520
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Anatomic Pathology & Clinical Pathology Physician
- License
- 3018209
- Practice address
- 75 Francis Street
Amory Building, 360H
Boston, MA 02115 - Phone
- (617) 732-7510
- NPI assigned
- Apr 9, 2025
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Anatomic Pathology & Clinical Pathology Physician | 207ZP0102X | 3018209 | MA | Primary |
Addresses
Primary practice location
75 Francis Street
Amory Building, 360H
Boston, MA 02115
Mailing address
75 Francis St
Amory Building, 360H
Boston, MA 02115
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 3018209 | MA | MD | Anatomic Pathology & Clinical Pathology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1744156800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1744156800000",
"number": "1255126520",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "75 FRANCIS ST",
"address_2": "AMORY BUILDING, 360H",
"city": "BOSTON",
"state": "MA",
"postal_code": "02115"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "75 FRANCIS STREET",
"address_2": "AMORY BUILDING, 360H",
"city": "BOSTON",
"state": "MA",
"postal_code": "02115",
"telephone_number": "617-732-7510"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CASSIDY",
"first_name": "BRETT",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2025-04-09",
"last_updated": "2025-04-09",
"certification_date": "2025-03-24",
"status": "A"
},
"taxonomies": [
{
"code": "207ZP0102X",
"taxonomy_group": "",
"desc": "Pathology, Anatomic Pathology & Clinical Pathology",
"state": "MA",
"license": "3018209",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Boston, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 9, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.