Active NPI
Teresa Mastroianni, FNP
- Family Nurse Practitioner
- Natick, MA
National Provider Identifier
1295533537
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Nurse Practitioner
- License
- RN2333998
- Practice address
- 117 W Central St
Natick, MA 01760-4381 - Phone
- (508) 566-5943
- NPI assigned
- Mar 4, 2025
- Sex
- Female
- 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 |
|---|---|---|---|---|
| Student in an Organized Health Care Education/Training Program | 390200000X | |||
| Family Nurse Practitioner | 363LF0000X | RN2333998 | MA | Primary |
Addresses
Primary practice location
117 W Central St
Natick, MA 01760-4381
Mailing address
580 E Broadway Apt 2
South Boston, MA 02127-4481
Phone (508) 566-5943
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
- Opted out of Medicare
- Yes, effective Mar 28, 2025 through Mar 28, 2027
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| RN2333998 | MA | MD | Family Nurse Practitioner |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1741046400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1743465600000",
"number": "1295533537",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "580 E BROADWAY APT 2",
"city": "SOUTH BOSTON",
"state": "MA",
"postal_code": "021274481",
"telephone_number": "508-566-5943"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "117 W CENTRAL ST",
"city": "NATICK",
"state": "MA",
"postal_code": "017604381",
"telephone_number": "508-566-5943"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MASTROIANNI",
"first_name": "TERESA",
"credential": "FNP",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2025-03-04",
"last_updated": "2025-04-01",
"certification_date": "2025-04-01",
"status": "A"
},
"taxonomies": [
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": null,
"license": null,
"primary": false
},
{
"code": "363LF0000X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Family",
"state": "MA",
"license": "RN2333998",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Natick, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 1, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring; Opt Out Affidavits.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.