Clark Holladay, LCSW
NPI 1437221454 · Clinical Social Worker · Salt Lake City, UT
Clark Holladay, LCSW is a Clinical Social Worker provider in Salt Lake City, UT (NPI 1437221454).
Provider details
- NPI number
- 1437221454
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
- License
- 265550-3501 (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
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
- 2006-11-14
- Last updated
- 2022-01-05
- Certified
- 2022-01-05
Frequently asked questions
- What is Clark Holladay's NPI number?
- Clark Holladay's National Provider Identifier (NPI) is 1437221454, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clark Holladay's specialty?
- Clark Holladay is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Clark Holladay located?
- Clark Holladay's practice location on file with NPPES is 344 E 100 S Ste 301, Salt Lake City, UT 84111-1727.
- What is Clark Holladay's phone number?
- The practice phone number listed in the NPPES registry for Clark Holladay is (801) 428-4257.
- Is Clark Holladay's NPI active?
- Yes — Clark Holladay's NPI (1437221454) is active in the NPPES registry as of the last update on 2022-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.