Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
STEPHEN F MAST, L.M.S.W.
ActiveSTEPHEN F MAST, L.M.S.W. is a Social Worker healthcare provider located in WEST SAYVILLE, New York. NPI 1558671735 is currently active in the NPPES registry. Verify at CMS.
Social Worker · WEST SAYVILLE, NY
Registration Details
- NPI Number
- 1558671735
- Provider Type
- Individual
- Gender
- Male
- NPI Issued
- Oct 20, 2010 (15.635692662101 yrs)
- Last Updated
- Sep 16, 2025
- License
-
081999-1 (NY)
Practice Information
- Address
-
93 MAIN STSUITE 1JWEST SAYVILLE, NY, 11796Browse NY providers · Browse ZIP 11796
- Phone
- 6315025220
- Fax
- 6312569353
- Primary Specialty
-
Social Worker
104100000X
Other Social Worker Providers in WEST SAYVILLE, NY
| Name | Credential | NPI |
|---|---|---|
| ALEXANDRA MARIE SALA | LMSW | 1609581289 |
| MEGAN ELIZABETH STETTINGER | LMSW | 1629844477 |
| GINA MARIE ZORN | LMSW | 1366335655 |
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.