Mark Sandberg
NPI 1831191709 · Clinical Neuropsychologist · Port Jefferson, NY
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Sandberg is a Clinical Neuropsychologist provider in Port Jefferson, NY (NPI 1831191709).
Provider details
- NPI number
- 1831191709
- Entity type
- Individual
- Primary specialty
- Clinical NeuropsychologistBehavioral Health & Social Service Providers
- Sex
- Male
- License
- 010083 (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
20 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
101 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 | 41 | $43 |
| Evaluation of Neuropsychological Test, Each Additional Hour96133 | 24 | $107 |
| Exam of Neurobehavioral Status, First Hour96116 | 12 | $102 |
| Evaluation of Neuropsychological Test, First Hour96132 | 12 | $142 |
| Administration of Psychological Or Neuropsychological Test, First 30 Minutes96136 | 12 | $47 |
Typical Medicare-allowed amounts for these services range $43–$142 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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
- 2005-08-11
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Sandberg's NPI number?
- Mark Sandberg's National Provider Identifier (NPI) is 1831191709, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Sandberg's specialty?
- Mark Sandberg is listed in the NPPES registry with a primary specialty of Clinical Neuropsychologist (Behavioral Health & Social Service Providers).
- Where is Mark Sandberg located?
- Mark Sandberg's practice location on file with NPPES is 200 Belle Terre Rd, Port Jefferson, NY 11777-1928.
- What is Mark Sandberg's phone number?
- The practice phone number listed in the NPPES registry for Mark Sandberg is (631) 474-6000.
- Does Mark Sandberg accept Medicare?
- Mark Sandberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Sandberg's NPI active?
- Yes — Mark Sandberg's NPI (1831191709) 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.