Margaret Sewell, PH.D.
NPI 1952331522 · Clinical Neuropsychologist · New York, NY
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Sewell, PH.D. is a Clinical Neuropsychologist provider in New York, NY (NPI 1952331522).
Provider details
- NPI number
- 1952331522
- Entity type
- Individual
- Primary specialty
- Clinical NeuropsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 013275-1 (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
809 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) |
|---|---|---|
| Evaluation of Neuropsychological Test, Each Additional Hour96133 | 325 | $106 |
| Administration of Psychological Or Neuropsychological Test, Each Additional 30 Minutes96137 | 257 | $42 |
| Evaluation of Neuropsychological Test, First Hour96132 | 75 | $140 |
| Administration of Psychological Or Neuropsychological Test, First 30 Minutes96136 | 75 | $46 |
| Psychiatric Diagnostic Evaluation90791 | 43 | $186 |
| Exam of Neurobehavioral Status, First Hour96116 | 34 | $101 |
Typical Medicare-allowed amounts for these services range $42–$186 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is Margaret Sewell's NPI number?
- Margaret Sewell's National Provider Identifier (NPI) is 1952331522, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Sewell's specialty?
- Margaret Sewell is listed in the NPPES registry with a primary specialty of Clinical Neuropsychologist (Behavioral Health & Social Service Providers).
- Where is Margaret Sewell located?
- Margaret Sewell's practice location on file with NPPES is 1 Gustave L Levy Pl, New York, NY 10029-6500.
- What is Margaret Sewell's phone number?
- The practice phone number listed in the NPPES registry for Margaret Sewell is (212) 241-0188.
- Does Margaret Sewell accept Medicare?
- Margaret Sewell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Sewell's NPI active?
- Yes — Margaret Sewell's NPI (1952331522) 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.