Mark De Santis
NPI 1649469651 · Clinical Neuropsychologist · Charleston, SC
Mark De Santis is a Clinical Neuropsychologist provider in Charleston, SC (NPI 1649469651).
Provider details
- NPI number
- 1649469651
- Entity type
- Individual
- Primary specialty
- Clinical NeuropsychologistBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
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
18 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2007-10-16
- Last updated
- 2007-10-16
Frequently asked questions
- What is Mark De Santis's NPI number?
- Mark De Santis's National Provider Identifier (NPI) is 1649469651, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark De Santis's specialty?
- Mark De Santis is listed in the NPPES registry with a primary specialty of Clinical Neuropsychologist (Behavioral Health & Social Service Providers).
- Where is Mark De Santis located?
- Mark De Santis's practice location on file with NPPES is 109 Bee St, Charleston, SC 29401-5703.
- What is Mark De Santis's phone number?
- The practice phone number listed in the NPPES registry for Mark De Santis is (954) 465-8136.
- Is Mark De Santis's NPI active?
- Yes — Mark De Santis's NPI (1649469651) is active in the NPPES registry as of the last update on 2007-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.