Mary Alexis Cox
Behavior Analyst · O Fallon, IL
Mary Alexis Cox is a behavior analyst with a practice address in O Fallon, Illinois, and NPI 1891350674, issued on May 7, 2019. Check the license with the Illinois board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mary Alexis Cox
- Primary taxonomy
- Behavior Analyst 103K00000X
- License number
- 2019003789 MO
Self-reported in NPPES; status is on the state search - Practice location
- 634 N Main St Ste 4, O Fallon, IL 62269
- Phone
- (618) 276-5870
- Enumerated
- May 7, 2019
- Record last updated
- Jun 20, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 634 N Main St Ste 4
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexis AaronBehavior Technician1831036003
- Ramontay AbramBehavior Technician1891621439
- Victoria AllenBehavior Technician1467952838
- Candace AmesquitaBehavior Technician1841835733
- Hallie AndersonBehavior Technician1780335281
- Taylor BarnesBehavior Technician1386204501
Verify Mary Alexis Cox in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois 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
43 behavior analyst records list a practice address in O Fallon
They are 43 of the 1,077 NPPES records with a practice address in O Fallon, and 3,082 behavior analyst records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 43 in O Fallon → All 3,082 in Illinois → Every provider in O Fallon →
Other behavior analyst records in Illinois
- Genesis Luke AbadChicago, IL1588425060
- Yasmin Abdel-JaberBurr Ridge, IL1972163624
- Ahmad Abdul-RahimChicago, IL1114814902
- Teresa Abels, MHPJoliet, IL1003280553
- Allison AbendrothElmhurst, IL1447866363
- Carlotta Abogado, BCBAOrland Park, IL1740017243
- Maram Abomaray, BCBANaperville, IL1447903158
- Indira AbrahamChicago, IL1255286472
- Alecia AbramChicago, IL1336655836
- Chelsea Aburroman, MS, BCBANaperville, IL1235744228
Common questions
What is Mary Alexis Cox's NPI number?
Mary Alexis Cox's National Provider Identifier (NPI) is 1891350674, issued on May 7, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Mary Alexis Cox located?
The NPPES record lists a practice address at 634 N Main St Ste 4, O Fallon, IL, 62269. Phone: (618) 276-5870. Providers update this record themselves, so call before visiting.
How can I verify Mary Alexis Cox's license?
Search the Illinois 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.