John Williams
NPI 1528421161 · Assisted Living Facility (Mental Illness) · Walterboro, SC
John Williams is a Assisted Living Facility (Mental Illness) provider in Walterboro, SC (NPI 1528421161).
Provider details
- NPI number
- 1528421161
- Entity type
- Individual
- Primary specialty
- Assisted Living Facility (Mental Illness)Nursing & Custodial Care Facilities
- Sex
- Male
- Sole proprietor
- Yes
- License
- CRC1529 (SC)
Specialties & taxonomies
Nursing & Custodial Care Facilities
Nursing & Custodial Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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
- 2016-03-31
- Last updated
- 2016-03-31
Frequently asked questions
- What is John Williams's NPI number?
- John Williams's National Provider Identifier (NPI) is 1528421161, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Williams's specialty?
- John Williams is listed in the NPPES registry with a primary specialty of Assisted Living Facility (Mental Illness) (Nursing & Custodial Care Facilities).
- Where is John Williams located?
- John Williams's practice location on file with NPPES is 121 Moore St, Walterboro, SC 29488-4463.
- What is John Williams's phone number?
- The practice phone number listed in the NPPES registry for John Williams is (803) 727-2572.
- Is John Williams's NPI active?
- Yes — John Williams's NPI (1528421161) is active in the NPPES registry as of the last update on 2016-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.