William Sullivan, PH.D.
NPI 1669809331 · School Psychologist · Blythewood, SC
William Sullivan, PH.D. is a School Psychologist provider in Blythewood, SC (NPI 1669809331).
Provider details
- NPI number
- 1669809331
- Entity type
- Individual
- Primary specialty
- School PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Counselor101Y00000X
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
12 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
- 2013-09-26
- Last updated
- 2013-09-26
Frequently asked questions
- What is William Sullivan's NPI number?
- William Sullivan's National Provider Identifier (NPI) is 1669809331, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Sullivan's specialty?
- William Sullivan is listed in the NPPES registry with a primary specialty of School Psychologist (Behavioral Health & Social Service Providers).
- Where is William Sullivan located?
- William Sullivan's practice location on file with NPPES is 18 Ascot Ct, Blythewood, SC 29016-9086.
- What is William Sullivan's phone number?
- The practice phone number listed in the NPPES registry for William Sullivan is (803) 960-0299.
- Is William Sullivan's NPI active?
- Yes — William Sullivan's NPI (1669809331) is active in the NPPES registry as of the last update on 2013-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.