Marshall Silverstein, PH.D.
NPI 1225052699 · Clinical Psychologist · Westbury, NY
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marshall Silverstein, PH.D. is a Clinical Psychologist provider in Westbury, NY (NPI 1225052699).
Provider details
- NPI number
- 1225052699
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 010819-2 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
939 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Administration of Psychological Or Neuropsychological Test, Each Additional 30 Minutes96137 | 442 | $38 |
| Evaluation of Neuropsychological Test, Each Additional Hour96133 | 174 | $98 |
| Evaluation of Psychological Test, Each Additional Hour96131 | 102 | $86 |
| Psychotherapy, 45 Minutes90834 | 90 | $104 |
| Administration of Psychological Or Neuropsychological Test, First 30 Minutes96136 | 51 | $42 |
| Psychiatric Diagnostic Evaluation90791 | 29 | $173 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is Marshall Silverstein's NPI number?
- Marshall Silverstein's National Provider Identifier (NPI) is 1225052699, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marshall Silverstein's specialty?
- Marshall Silverstein is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Marshall Silverstein located?
- Marshall Silverstein's practice location on file with NPPES is 710 Salisbury Park Dr, Westbury, NY 11590-5820.
- What is Marshall Silverstein's phone number?
- The practice phone number listed in the NPPES registry for Marshall Silverstein is (516) 338-2810.
- Does Marshall Silverstein accept Medicare?
- Marshall Silverstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marshall Silverstein's NPI active?
- Yes — Marshall Silverstein's NPI (1225052699) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.