Active NPI
Graham John Newstead, M.D.
- Allergy & Immunology Physician
- Warwick, RI
National Provider Identifier
1720109986
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Allergy & Immunology Physician
- License
- MD04236
- Practice address
- 300 Tollgate Road
Suite 204
Warwick, RI 02886-4448 - Phone
- (401) 738-2400
- Fax
- (401) 732-8953
- NPI assigned
- Apr 3, 2007
- Sex
- Male
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Allergy & Immunology Physician | 207K00000X | MD04236 | RI | Primary |
| Pediatrics Physician | 208000000X | MD04236 | RI |
Addresses
Primary practice location
300 Tollgate Road
Suite 204
Warwick, RI 02886-4448
Mailing address
300 Tollgate Road
Suite 204
Warwick, RI 02886-4448
Phone (401) 738-2400
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 |
|---|---|---|---|
| MD04236 | RI | MD | Allergy & Immunology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Graham J. Newstead M.D., Inc. | Allergy & Immunology | Past | Accepting new patients |
Organizations & group practices 1
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.
-
- Allergy & Immunology Physician
- Warwick, RI
- NPI 1629199856
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1175558400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1720109986",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "300 TOLLGATE ROAD",
"address_2": "SUITE 204",
"city": "WARWICK",
"state": "RI",
"postal_code": "028864448",
"telephone_number": "401-738-2400",
"fax_number": "401-732-8953"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "300 TOLLGATE ROAD",
"address_2": "SUITE 204",
"city": "WARWICK",
"state": "RI",
"postal_code": "028864448",
"telephone_number": "401-738-2400",
"fax_number": "401-732-8953"
}
],
"practiceLocations": [],
"basic": {
"last_name": "NEWSTEAD",
"first_name": "GRAHAM",
"middle_name": "JOHN",
"credential": "M.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2007-04-03",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "207K00000X",
"taxonomy_group": "",
"desc": "Allergy & Immunology",
"state": "RI",
"license": "MD04236",
"primary": true
},
{
"code": "208000000X",
"taxonomy_group": "",
"desc": "Pediatrics",
"state": "RI",
"license": "MD04236",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Warwick, RI
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.