Registry data as of Aug 27, 2026

Olga Marrero, R.N., IBCLC

Perinatal Registered Nurse · Chicago, IL

Olga Marrero, R.N., IBCLC is a perinatal registered nurse with a practice address in Chicago, Illinois, and NPI 1164746822, issued on Mar 23, 2010. Check the license (Illinois 041320946, 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
1164746822
Name
Olga Marrero
Credential
R.N., IBCLC
Primary taxonomy
Perinatal Registered Nurse 163WP1700X
License number
041320946 IL
Self-reported in NPPES; status is on the state search
Practice location
2233 W Division St, Chicago, IL 60622
Phone
(312) 770-2883
Enumerated
Mar 23, 2010
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 2233 W Division St

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

  1. Emylea AdamsStudent in an Organized Health Care Education/Training Program1346097912
  2. Adeola Adesuyi, CRNACertified Registered Nurse Anesthetist1962799007
  3. Thelma AgudaPhysical Therapist1750637450
  4. Jasmine Agyei-Poku, MDStudent in an Organized Health Care Education/Training Program1013764182
  5. Maheen Ahmad, DPMPodiatrist1619460292
  6. Bianca AjonPhysical Therapist1881940336

Verify Olga Marrero 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 041320946    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.

Perinatal Registered Nurse providers in Illinois

There are 4 perinatal registered nurse records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 4 in Illinois → Every provider in Chicago →

Other perinatal registered nurse records in Illinois

  1. Ashley Hooten, RNLawrenceville, IL1164301362
  2. Teresita Rescober, R.N.-ADV.PRACT./C.SPChicago, IL1124267851
  3. Anne Taunton, RNRiver Forest, IL1407702301

Common questions

What is Olga Marrero, R.N., IBCLC's NPI number?

Olga Marrero, R.N., IBCLC's National Provider Identifier (NPI) is 1164746822, issued on Mar 23, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Olga Marrero, R.N., IBCLC located?

The NPPES record lists a practice address at 2233 W Division St, Chicago, IL, 60622. Phone: (312) 770-2883. Providers update this record themselves, so call before visiting.

How can I verify Olga Marrero, R.N., IBCLC's license?

NPPES lists Illinois license number 041320946, 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.