NPPES file of Aug 9, 2026

Melissa Leigh Ryan

Behavior Analyst · Darien, IL

Melissa Leigh Ryan is a behavior analyst with a practice address in Darien, Illinois, and NPI 1366915860, issued on Jan 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.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1366915860
Name
Melissa Leigh Ryan
Primary taxonomy
Behavior Analyst 103K00000X
Practice location
8149 Cass Ave, Darien, IL 60561
Phone
(630) 541-6441
Enumerated
Jan 7, 2019
Record last updated
Jan 7, 2019 (not updated in 7 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 8149 Cass Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lauren TregoningBehavior Analyst1093206245

Verify Melissa Leigh Ryan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

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11 behavior analyst records list a practice address in Darien

They are 11 of the 389 NPPES records with a practice address in Darien, and 3,082 behavior analyst records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 11 in Darien → All 3,082 in Illinois → Every provider in Darien →

Other behavior analyst records in Illinois

  1. Genesis Luke AbadChicago, IL1588425060
  2. Yasmin Abdel-JaberBurr Ridge, IL1972163624
  3. Ahmad Abdul-RahimChicago, IL1114814902
  4. Teresa Abels, MHPJoliet, IL1003280553
  5. Allison AbendrothElmhurst, IL1447866363
  6. Carlotta Abogado, BCBAOrland Park, IL1740017243
  7. Maram Abomaray, BCBANaperville, IL1447903158
  8. Indira AbrahamChicago, IL1255286472
  9. Alecia AbramChicago, IL1336655836
  10. Chelsea Aburroman, MS, BCBANaperville, IL1235744228

Common questions

What is Melissa Leigh Ryan's NPI number?

Melissa Leigh Ryan's National Provider Identifier (NPI) is 1366915860, issued on Jan 7, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Melissa Leigh Ryan located?

The NPPES record lists a practice address at 8149 Cass Ave, Darien, IL, 60561. Phone: (630) 541-6441. Providers update this record themselves, so call before visiting.

How can I verify Melissa Leigh Ryan'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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.