Diane Hilliard, LCSW
NPI 1588706592 · Clinical Social Worker · Tacoma, WA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane Hilliard, LCSW is a Clinical Social Worker provider in Tacoma, WA (NPI 1588706592).
Provider details
- NPI number
- 1588706592
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- LCS 19878 (CA)
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
2 documented practice locations
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
Additional practice locations (1)
- 303 W Henderson AvePorterville, CA 93257-1732Phone: (559) 308-6711Fax: (559) 791-2507
Registry dates
- Enumerated
- 2007-02-13
- Last updated
- 2021-09-23
- Certified
- 2021-09-23
Frequently asked questions
- What is Diane Hilliard's NPI number?
- Diane Hilliard's National Provider Identifier (NPI) is 1588706592, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Hilliard's specialty?
- Diane Hilliard is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Diane Hilliard located?
- Diane Hilliard's practice location on file with NPPES is 9505 S Steele St, Tacoma, WA 98444-1858.
- What is Diane Hilliard's phone number?
- The practice phone number listed in the NPPES registry for Diane Hilliard is (253) 597-6800.
- Does Diane Hilliard accept Medicare?
- Diane Hilliard is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane Hilliard's NPI active?
- Yes — Diane Hilliard's NPI (1588706592) is active in the NPPES registry as of the last update on 2021-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.