Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
DR. WILLIAM MARTIN GREENSTADT, PH.D.
Active Sole ProprietorDR. WILLIAM MARTIN GREENSTADT, PH.D. is a Psychoanalysis (Psychologist) healthcare provider located in NEW YORK, New York. NPI 1922021559 is currently active in the NPPES registry. Verify at CMS.
Psychoanalysis (Psychologist) · NEW YORK, NY
Registration Details
- NPI Number
- 1922021559
- Provider Type
- Individual
- Gender
- Male
- NPI Issued
- Jul 25, 2006 (20.019116151524 yrs)
- Last Updated
- Sep 11, 2025
- Licenses
-
000338-1 (NY)002936-1 (NY)
- Sole Proprietor
- Yes
Practice Information
- Address
-
232 MADISON AVESUITE 1308NEW YORK, NY, 100162901Browse NY providers · Browse ZIP 10016
- Phone
- 2126869256
- Fax
- 2126864104
- Primary Specialty
-
Psychoanalysis (Psychologist)
103TP0814X
- Additional Specialty
- Psychologist
Other Psychoanalysis (Psychologist) Providers in NEW YORK, NY
| Name | Credential | NPI |
|---|---|---|
| MS. JUDITH A. YOUNG | MA,NCPSYA | 1669400958 |
| EMMELIEN BROUWERS | MPS | 1427089184 |
| LEIDE PORCU | PHD LPSA | 1497786404 |
| DR. MICHELLE MANUALA LE BOW | PSY.D. | 1174556443 |
| MS. ELIZABETH PARTICIA KLEINMAN | M.A.,NCPSYA | 1699799882 |
| MR. GARY MICHAEL PROTTAS | L.P. | 1487766192 |
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.