IndividualActive
William Marchant, LISW
NPI 1588907463 · Social Worker · Charleston, SC
William Marchant, LISW is a Social Worker provider in Charleston, SC (NPI 1588907463).
Provider details
- NPI number
- 1588907463
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LISW
- Sex
- Male
- Sole proprietor
- No
- License
- 8221 (SC)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(78/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
171 Ashley Ave
Charleston, SC 29425-8908
Phone: (843) 792-1414
Street-level locationGet directions
Mailing address
Po Box 751461
Charlotte, NC 28275-1461
Registry dates
- Enumerated
- 2013-03-29
- Last updated
- 2013-03-29
Frequently asked questions
- What is William Marchant's NPI number?
- William Marchant's National Provider Identifier (NPI) is 1588907463, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Marchant's specialty?
- William Marchant is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is William Marchant located?
- William Marchant's practice location on file with NPPES is 171 Ashley Ave, Charleston, SC 29425-8908.
- What is William Marchant's phone number?
- The practice phone number listed in the NPPES registry for William Marchant is (843) 792-1414.
- Is William Marchant's NPI active?
- Yes — William Marchant's NPI (1588907463) is active in the NPPES registry as of the last update on 2013-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.