1 NPI-registered providers practice in Harstdale, New York. Pick another city in the rail, or open the full search to filter by specialty and credential.
| Provider | Specialty | Location | NPI |
|---|---|---|---|
| Nancy Thenor-LouisLMSW | Social Worker | Harstdale, NY | 1326594698 |
Source: CMS NPPES Data Dissemination (June 2026).
