Active NPI
Mackenzie Taylor Gray Olson
- Acute Care Nurse Practitioner
- Boston, MA
National Provider Identifier
1407764905
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Acute Care Nurse Practitioner
- License
- RN10014849
- Practice address
- 55 Fruit St
Boston, MA 02114-2696 - Phone
- (617) 726-2000
- NPI assigned
- Aug 28, 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 |
|---|---|---|---|---|
| Acute Care Nurse Practitioner | 363LA2100X | RN10014849 | MA | Primary |
Addresses
Primary practice location
55 Fruit St
Boston, MA 02114-2696
Mailing address
55 Fruit St
Boston, MA 02114-2696
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1787875200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1787875200000",
"number": "1407764905",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "55 FRUIT ST",
"city": "BOSTON",
"state": "MA",
"postal_code": "021142696"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "55 FRUIT ST",
"city": "BOSTON",
"state": "MA",
"postal_code": "021142696",
"telephone_number": "617-726-2000"
}
],
"practiceLocations": [],
"basic": {
"last_name": "OLSON",
"first_name": "MACKENZIE",
"middle_name": "TAYLOR GRAY",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2026-08-28",
"last_updated": "2026-08-28",
"certification_date": "2026-08-27",
"status": "A"
},
"taxonomies": [
{
"code": "363LA2100X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Acute Care",
"state": "MA",
"license": "RN10014849",
"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 Aug 28, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.