Spencer Gilliam
NPI 1477126159 · Behavior Analyst · Saint Louis, MO
Spencer Gilliam is a Behavior Analyst provider in Saint Louis, MO (NPI 1477126159).
Provider details
- NPI number
- 1477126159
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 2025050192 (MO)
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Behavior Technician106S00000X
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
4 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
- 2021-07-21
- Last updated
- 2025-11-24
- Certified
- 2025-11-24
Frequently asked questions
- What is Spencer Gilliam's NPI number?
- Spencer Gilliam's National Provider Identifier (NPI) is 1477126159, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Spencer Gilliam's specialty?
- Spencer Gilliam is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Spencer Gilliam located?
- Spencer Gilliam's practice location on file with NPPES is 96 Grasso Plz, Saint Louis, MO 63123-3108.
- What is Spencer Gilliam's phone number?
- The practice phone number listed in the NPPES registry for Spencer Gilliam is (636) 398-2515.
- Is Spencer Gilliam's NPI active?
- Yes — Spencer Gilliam's NPI (1477126159) is active in the NPPES registry as of the last update on 2025-11-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.