John Guercio, PHD BCBA-D CBIST
NPI 1861710485 · Behavior Analyst · Jerseyville, IL
John Guercio, PHD BCBA-D CBIST is a Behavior Analyst provider in Jerseyville, IL (NPI 1861710485).
Provider details
- NPI number
- 1861710485
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Credential
- PHD BCBA-D CBIST
- Sex
- Male
- Sole proprietor
- Yes
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
16 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2010-05-06
- Last updated
- 2010-05-06
Frequently asked questions
- What is John Guercio's NPI number?
- John Guercio's National Provider Identifier (NPI) is 1861710485, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Guercio's specialty?
- John Guercio is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is John Guercio located?
- John Guercio's practice location on file with NPPES is 214 Hartcourt Ave, Jerseyville, IL 62052-2053.
- What is John Guercio's phone number?
- The practice phone number listed in the NPPES registry for John Guercio is (618) 946-6188.
- Is John Guercio's NPI active?
- Yes — John Guercio's NPI (1861710485) is active in the NPPES registry as of the last update on 2010-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.