Active NPI
Sarah Alsayer
- Behavior Technician
- Waltham, MA
National Provider Identifier
1932037447
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Behavior Technician
- Practice address
- 303 Wyman St Ste 300
Waltham, MA 02451-1255 - Phone
- (800) 249-1266
- Fax
- (800) 249-1266
- NPI assigned
- May 13, 2026
- Sex
- Female
- Sole proprietor
- No
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
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 |
|---|---|---|---|---|
| Behavior Technician | 106S00000X | MA | Primary |
Addresses
Primary practice location
303 Wyman St Ste 300
Waltham, MA 02451-1255
Mailing address
2733 E 12TH St
Brooklyn, NY 11235-4669
Phone (800) 249-1266
NPI Registry JSON
{
"created_epoch": "1778630400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1778630400000",
"number": "1932037447",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2733 E 12TH ST",
"city": "BROOKLYN",
"state": "NY",
"postal_code": "112354669",
"telephone_number": "800-249-1266",
"fax_number": "800-249-1266"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "303 WYMAN ST STE 300",
"city": "WALTHAM",
"state": "MA",
"postal_code": "024511255",
"telephone_number": "800-249-1266",
"fax_number": "800-249-1266"
}
],
"practiceLocations": [],
"basic": {
"last_name": "ALSAYER",
"first_name": "SARAH",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2026-05-13",
"last_updated": "2026-05-13",
"certification_date": "2026-05-13",
"status": "A"
},
"taxonomies": [
{
"code": "106S00000X",
"taxonomy_group": "",
"desc": "Behavior Technician",
"state": "MA",
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Waltham, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 13, 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.