Active NPI
Madelyn Lunder
- Social Worker
- New York, NY
National Provider Identifier
1467288647
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Social Worker
- Practice address
- 227 E 57TH St Apt 1F
New York, NY 10022-2832 - Phone
- (203) 253-8063
- NPI assigned
- Sep 12, 2024
- Last updated
- Jan 9, 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 |
|---|---|---|---|---|
| Social Worker | 104100000X | Primary |
Addresses
Primary practice location
227 E 57TH St Apt 1F
New York, NY 10022-2832
Mailing address
777 6TH Ave Apt 21K
New York, NY 10001-6327
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
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| MSC Therapy LCSW PLLC | 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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Clinical Social Worker
- New York, NY
- NPI 1134083553
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1726099200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1767916800000",
"number": "1467288647",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "777 6TH AVE APT 21K",
"city": "NEW YORK",
"state": "NY",
"postal_code": "100016327"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "227 E 57TH ST APT 1F",
"city": "NEW YORK",
"state": "NY",
"postal_code": "100222832",
"telephone_number": "203-253-8063"
}
],
"practiceLocations": [],
"basic": {
"last_name": "LUNDER",
"first_name": "MADELYN",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2024-09-12",
"last_updated": "2026-01-09",
"certification_date": "2026-01-09",
"status": "A"
},
"taxonomies": [
{
"code": "104100000X",
"taxonomy_group": "",
"desc": "Social Worker",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in New York, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 9, 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.