William Holley, LCSW MSW
NPI 1528288891 · Clinical Social Worker · Frankfort, IL
William Holley, LCSW MSW is a Clinical Social Worker provider in Frankfort, IL (NPI 1528288891).
Provider details
- NPI number
- 1528288891
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW MSW
- Sex
- Male
- Sole proprietor
- No
- License
- 149004943 LCSW (IL)
Specialties & taxonomies
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
19 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
- 2007-04-27
- Last updated
- 2023-02-16
- Certified
- 2023-02-16
Frequently asked questions
- What is William Holley's NPI number?
- William Holley's National Provider Identifier (NPI) is 1528288891, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Holley's specialty?
- William Holley is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is William Holley located?
- William Holley's practice location on file with NPPES is 20635 Abbey Woods Ct N Ste 209, Frankfort, IL 60423-3188.
- What is William Holley's phone number?
- The practice phone number listed in the NPPES registry for William Holley is (815) 640-1669.
- Is William Holley's NPI active?
- Yes — William Holley's NPI (1528288891) is active in the NPPES registry as of the last update on 2023-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.