Thomas Preston, PHD
NPI 1649271396 · Clinical Neuropsychologist · Stony Brook, NY
Enrolled with Medicare as Order and Referring Only - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Preston, PHD is a Clinical Neuropsychologist provider in Stony Brook, NY (NPI 1649271396).
Provider details
- NPI number
- 1649271396
- Entity type
- Individual
- Primary specialty
- Clinical NeuropsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 012040 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-03
- Last updated
- 2015-04-10
Frequently asked questions
- What is Thomas Preston's NPI number?
- Thomas Preston's National Provider Identifier (NPI) is 1649271396, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Preston's specialty?
- Thomas Preston is listed in the NPPES registry with a primary specialty of Clinical Neuropsychologist (Behavioral Health & Social Service Providers).
- Where is Thomas Preston located?
- Thomas Preston's practice location on file with NPPES is 29 Hargrove Drive, Stony Brook, NY 11790-2328.
- What is Thomas Preston's phone number?
- The practice phone number listed in the NPPES registry for Thomas Preston is (631) 513-8104.
- Does Thomas Preston accept Medicare?
- Thomas Preston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Preston's NPI active?
- Yes — Thomas Preston's NPI (1649271396) is active in the NPPES registry as of the last update on 2015-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.