Registry data as of Aug 27, 2026

Marlene Alejos, M.D.

Specialist · Tinley Park, IL

Marlene Alejos, M.D. is a specialist with a practice address in Tinley Park, Illinois, and NPI 1619962933, issued on Sep 13, 2005. Check the license (Illinois 36054594, as entered in NPPES) 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, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1619962933
Name
Marlene Alejos
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
36054594 IL
Self-reported in NPPES; status is on the state search
Practice location
7400 183RD St, Tinley Park, IL 60477
Phone
(708) 614-4000
Enumerated
Sep 13, 2005
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 7400 183RD St

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

  1. Sharon Mangum, M.D.Specialist1457346744
  2. Timothy Olenek, D.O.Specialist1720073000
  3. Gardenia Pajunar-Li, M.D.Family Medicine Physician1811188063
  4. Stuart Rich, M.D.Specialist1568457869

Verify Marlene Alejos in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 36054594    Check 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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Specialist providers in Illinois

There are 1,419 specialist records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,419 in Illinois → Every provider in Tinley Park →

Other specialist records in Illinois

  1. Sandra . Drewes, MDWinfield, IL1518056670
  2. Laketa AaronBellwood, IL1508508490
  3. Carrie Abbott-Walk, M.ED, DTDekalb, IL1841496171
  4. Suhair Abdel-Jalil, MDEvanston, IL1174572929
  5. Babak Abdollahshamshirsaz, M.D.Chicago, IL1447585765
  6. Syed Abdul-Aziz, MDBelleville, IL1114906005
  7. Steven Abern, M.D.Park Ridge, IL1922027424
  8. Richard AbramsChicago, IL1003992413
  9. Cherie AdamsEvanston, IL1063645810
  10. Robyn AdamsHerrin, IL1245216282

Common questions

What is Marlene Alejos, M.D.'s NPI number?

Marlene Alejos, M.D.'s National Provider Identifier (NPI) is 1619962933, issued on Sep 13, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Marlene Alejos, M.D. located?

The NPPES record lists a practice address at 7400 183RD St, Tinley Park, IL, 60477. Phone: (708) 614-4000. Providers update this record themselves, so call before visiting.

How can I verify Marlene Alejos, M.D.'s license?

NPPES lists Illinois license number 36054594, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.