Active NPI
Thomas G Roberts Jr., MD
- Hematology & Oncology Physician
- Boston, MA
National Provider Identifier
1013929082
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hematology & Oncology Physician
- License
- 205670
- Practice address
- 100 Blossom Street
Cox 640 Hematology Oncology Associates
Boston, MA 02114-2617 - Phone
- (617) 726-7423
- Fax
- (617) 724-7135
- NPI assigned
- Aug 11, 2006
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | 205670 | MA | |
| Hematology & Oncology Physician | 207RH0003X | 205670 | MA | Primary |
Addresses
Primary practice location
100 Blossom Street
Cox 640 Hematology Oncology Associates
Boston, MA 02114-2617
Mailing address
PO Box 9142
Mass General Physician Organization
Charlestown, MA 02129-9142
Phone (617) 724-0287
Other identifiers 3
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2010232 | Medicaid | MA | |
| J24720 | Other | MA | BCBS OF MA |
| 409654 | Other | MA | TUFTS HEALTH PLAN |
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)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 205670 | MA | MD | Internal Medicine Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1155254400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1013929082",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 9142",
"address_2": "MASS GENERAL PHYSICIAN ORGANIZATION",
"city": "CHARLESTOWN",
"state": "MA",
"postal_code": "021299142",
"telephone_number": "617-724-0287",
"fax_number": "617-726-2894"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "100 BLOSSOM STREET",
"address_2": "COX 640 HEMATOLOGY ONCOLOGY ASSOCIATES",
"city": "BOSTON",
"state": "MA",
"postal_code": "021142617",
"telephone_number": "617-726-7423",
"fax_number": "617-724-7135"
}
],
"practiceLocations": [],
"basic": {
"last_name": "ROBERTS",
"first_name": "THOMAS",
"middle_name": "G",
"name_prefix": "Dr.",
"name_suffix": "Jr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-08-11",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "MA",
"license": "205670",
"primary": false
},
{
"code": "207RH0003X",
"taxonomy_group": "",
"desc": "Internal Medicine, Hematology & Oncology",
"state": "MA",
"license": "205670",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "2010232",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "BCBS OF MA",
"identifier": "J24720",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "TUFTS HEALTH PLAN",
"identifier": "409654",
"state": "MA"
}
],
"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 Sep 11, 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.