Active NPI
Isabel Regan
- Physician Assistant
- Boston, MA
National Provider Identifier
1679401418
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physician Assistant
- Practice address
- 300 Longwood Ave
Boston, MA 02115-5724 - Phone
- (617) 355-6000
- NPI assigned
- May 12, 2026
- Sex
- Female
- 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 |
|---|---|---|---|---|
| Physician Assistant | 363A00000X | Primary |
Addresses
Primary practice location
300 Longwood Ave
Boston, MA 02115-5724
Mailing address
478 Shawmut Ave Apt 7
Boston, MA 02118-3321
Phone (919) 441-2679
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
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1778544000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1778544000000",
"number": "1679401418",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "478 SHAWMUT AVE APT 7",
"city": "BOSTON",
"state": "MA",
"postal_code": "021183321",
"telephone_number": "919-441-2679"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "300 LONGWOOD AVE",
"city": "BOSTON",
"state": "MA",
"postal_code": "021155724",
"telephone_number": "617-355-6000"
}
],
"practiceLocations": [],
"basic": {
"last_name": "REGAN",
"first_name": "ISABEL",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2026-05-12",
"last_updated": "2026-05-12",
"certification_date": "2026-05-12",
"status": "A"
},
"taxonomies": [
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": null,
"license": null,
"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 May 12, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.