Justin Barrett Leaf, PH.D., BCBA
Behavior Analyst · Foristell, MO
Justin Barrett Leaf, PH.D., BCBA is a behavior analyst with a practice address in Foristell, Missouri, and NPI 1881995942, issued on Nov 5, 2010. Check the license with the Missouri board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Justin Barrett Leaf
- Credential
- PH.D., BCBA
- Primary taxonomy
- Behavior Analyst 103K00000X
- Practice location
- 19 Lexington Oaks CT, Foristell, MO 63348
- Phone
- (562) 221-8581
- Enumerated
- Nov 5, 2010
- Record last updated
- Nov 5, 2010 (not updated in 16 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest behavior analyst records → All 1,187 in Missouri → Look up another NPI →
Also registered at 19 Lexington Oaks CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Krystal Cooper, BCBABehavior Analyst1518286178
- Sara Estle, PHD, BCBABehavior Analyst1275834442
- Todd Streff, BCBABehavior Analyst1851538136
Verify Justin Barrett Leaf in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Justin Barrett Leaf among 1,187 behavior analyst records in Missouri
Justin Barrett Leaf, PH.D., BCBA is one of 1,187 behavior analyst records with a practice address in Missouri. 0% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2010, is newer than 3% of them.
- NPI issued2010 · 3% of these records are older, 95% newer
- In a Medicare fileNo · 0% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2010 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103K00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 behavior analyst records list a practice address in Foristell
They are 5 of the 19 NPPES records with a practice address in Foristell, and 1,187 behavior analyst records in Missouri. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,187 in Missouri → Every provider in Foristell → Behavior Analyst nationwide →
The 8 behavior analyst records with the nearest ZIP codes
- Krystal Cooper, BCBAForistell, MO 633481518286178
- Sara Estle, PHD, BCBAForistell, MO 633481275834442
- Jennifer Morris, BCBAForistell, MO 633481003358144
- Todd Streff, BCBAForistell, MO 633481851538136
- Jennifer Radcliff, BCBALouisiana, MO 633531023657020
- Taylor Peters, BCBA, LBAMontgomery City, MO 633611700484441
- Alexa Fisher, BCBABowling Green, MO 633341407311053
- Taylor SohnMoscow Mills, MO 633621952123424
Common questions
What is Justin Barrett Leaf, PH.D., BCBA's NPI number?
Justin Barrett Leaf, PH.D., BCBA's National Provider Identifier (NPI) is 1881995942, issued on Nov 5, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Justin Barrett Leaf, PH.D., BCBA located?
The NPPES record lists a practice address at 19 Lexington Oaks CT, Foristell, MO, 63348. Phone: (562) 221-8581. Providers update this record themselves, so call before visiting.
How can I verify Justin Barrett Leaf, PH.D., BCBA's license?
Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.