Leigh Grannan, M.S., BCBA
NPI 1861512501 · Behavior Analyst · Carbondale, IL
Leigh Grannan, M.S., BCBA is a Behavior Analyst provider in Carbondale, IL (NPI 1861512501).
Provider details
- NPI number
- 1861512501
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Credential
- M.S., BCBA
- Sex
- Female
- Sole proprietor
- No
- License
- 1-04-1782
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Military Health Care Provider171000000X
Other 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
- 2007-03-29
- Last updated
- 2012-11-27
Frequently asked questions
- What is Leigh Grannan's NPI number?
- Leigh Grannan's National Provider Identifier (NPI) is 1861512501, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leigh Grannan's specialty?
- Leigh Grannan is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Leigh Grannan located?
- Leigh Grannan's practice location on file with NPPES is 625 Wham Dr - Mailcode 6607, Carbondale, IL 62901-4313.
- What is Leigh Grannan's phone number?
- The practice phone number listed in the NPPES registry for Leigh Grannan is (618) 453-7168.
- Is Leigh Grannan's NPI active?
- Yes — Leigh Grannan's NPI (1861512501) is active in the NPPES registry as of the last update on 2012-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.