William Kastner, MSW, MDIV
NPI 1982906616 · Clinical Social Worker · Salt Lake City, UT
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Kastner, MSW, MDIV is a Clinical Social Worker provider in Salt Lake City, UT (NPI 1982906616).
Provider details
- NPI number
- 1982906616
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW, MDIV
- Sex
- Male
- Sole proprietor
- No
- License
- 304986-3502 (UT)
Specialties & taxonomies
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
15 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
- 2010-12-01
- Last updated
- 2026-04-10
- Certified
- 2026-04-10
Frequently asked questions
- What is William Kastner's NPI number?
- William Kastner's National Provider Identifier (NPI) is 1982906616, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Kastner's specialty?
- William Kastner is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is William Kastner located?
- William Kastner's practice location on file with NPPES is 500 Foothill Dr, Salt Lake City, UT 84148-0001.
- What is William Kastner's phone number?
- The practice phone number listed in the NPPES registry for William Kastner is (801) 582-1565.
- Does William Kastner accept Medicare?
- William Kastner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Kastner's NPI active?
- Yes — William Kastner's NPI (1982906616) is active in the NPPES registry as of the last update on 2026-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.