NPPES file of Aug 9, 2026

Barbara Angela Osmolak, PHARMD

Pharmacist · Oak Brook, IL

Barbara Angela Osmolak, PHARMD is a pharmacist with a practice address in Oak Brook, Illinois, and NPI 1255679833, issued on Jan 16, 2013. Check the license (Illinois 051031103, 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, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255679833
Name
Barbara Angela Osmolak
Credential
PHARMD
Primary taxonomy
Pharmacist 183500000X
License number
051031103 IL
Self-reported in NPPES; status is on the state search
Practice location
1901 W 22ND St, Oak Brook, IL 60523
Phone
(630) 928-0220
Enumerated
Jan 16, 2013
Record last updated
Jan 16, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(630) 928-0567
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 1901 W 22ND St

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

  1. Iris Gutierrez, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1942808001
  2. Marvin SerdenaPharmacist1720713605

Verify Barbara Angela Osmolak 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 051031103
    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

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Barbara Angela Osmolak among 9,744 pharmacist records in Illinois

Barbara Angela Osmolak, PHARMD is one of 9,744 pharmacist records with a practice address in Illinois. 4% 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 2013, is newer than 42% of them.

  • NPI issued2013 · 42% of these records are older, 55% newer
  • In a Medicare fileNo · 4% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2013 · 79% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

18 pharmacist records list a practice address in Oak Brook

They are 18 of the 950 NPPES records with a practice address in Oak Brook, and 9,744 pharmacist records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 pharmacist records with the nearest ZIP codes

  1. Ausra Alghaben, PHARMDOak Brook, IL 605231194006502
  2. Michelle AndrewsOak Brook, IL 605231619271863
  3. Vanessa Jacobsen, PHARMDOak Brook, IL 605231184845752
  4. Brandon Johnson, PHARMDOak Brook, IL 605231548561475
  5. Kristina Lee, R.PH.Oak Brook, IL 605231518296722
  6. Christine Mares, PHARM D.Oak Brook, IL 605231952681579
  7. Tushar MehtaOak Brook, IL 605231326008343
  8. Nida Petronis, RPHOak Brook, IL 605231578506036

Common questions

What is Barbara Angela Osmolak, PHARMD's NPI number?

Barbara Angela Osmolak, PHARMD's National Provider Identifier (NPI) is 1255679833, issued on Jan 16, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Barbara Angela Osmolak, PHARMD located?

The NPPES record lists a practice address at 1901 W 22ND St, Oak Brook, IL, 60523. Phone: (630) 928-0220. Providers update this record themselves, so call before visiting.

How can I verify Barbara Angela Osmolak, PHARMD's license?

NPPES lists Illinois license number 051031103, 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), 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.