NPPES file of Aug 9, 2026

Catherine Gas, FNP-BC

Family Nurse Practitioner · Oak Lawn, IL

Catherine Gas, FNP-BC is a family nurse practitioner with a practice address in Oak Lawn, Illinois, and NPI 1538890926, issued on Jun 17, 2022. Check the license (Illinois 209025059, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1538890926
Name
Catherine Gas
Credential
FNP-BC
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
209025059 IL
Self-reported in NPPES; status is on the state search
Practice location
4440 W 95TH St Ste 183, Oak Lawn, IL 60453
Phone
(708) 684-4393
Enumerated
Jun 17, 2022
Record last updated
Oct 27, 2022
Medicare enrollment
Enrolled (PECOS I20220921002566); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4440 W 95TH St Ste 183

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

  1. Susan Bagdade, APRNNurse Practitioner1700562170
  2. Stephanie Bonne, MDTrauma Surgery Physician1225294507
  3. Thomas Cartolano, D.O.Surgical Critical Care Physician1366688632
  4. Jafar Haghshenas, DOSurgical Critical Care Physician1336554716
  5. Kelly Misakian, FNPCritical Care Medicine Nurse Practitioner1730810995
  6. Emily Roll, NPNurse Practitioner1235835869

Verify Catherine Gas 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 209025059    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.

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98% fewer Medicare Part D claims than the average family nurse practitioner in 2024

32 Medicare Part D claims for 18 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Catherine Gas32
  2. Specialty average1,305

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Advocate Health And Hospitals CorporationOak Lawn, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

93 family nurse practitioner records list a practice address in Oak Lawn

They are 93 of the 2,993 NPPES records with a practice address in Oak Lawn, and 7,639 family nurse practitioner records in Illinois.

All 93 in Oak Lawn → All 7,639 in Illinois → Every provider in Oak Lawn →

Other family nurse practitioner records in Illinois

  1. Crystal Aandahl, FNPNorth Chicago, IL1316497068
  2. Deborah Aaron, FNPChicago, IL1114024916
  3. Roseviminda Abano, CNPGurnee, IL1215318555
  4. Theresa AbbaduskyPekin, IL1265892046
  5. Nadia Abbasi-Kling, FNP-BCChicago, IL1033767736
  6. Manar Abdalla, FNPChicago, IL1700632411
  7. Mahubah Abdallah, FNP-CRochelle, IL1841752284
  8. Rana Abdallah, DNP, APRN, FNP-CLake Villa, IL1851261887
  9. Servet Abdelhafez, APRNBrookfield, IL1790505048
  10. Nadia Abdessalam, FNP-BCOak Lawn, IL1356888283

Common questions

What is Catherine Gas, FNP-BC's NPI number?

Catherine Gas, FNP-BC's National Provider Identifier (NPI) is 1538890926, issued on Jun 17, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Catherine Gas, FNP-BC located?

The NPPES record lists a practice address at 4440 W 95TH St Ste 183, Oak Lawn, IL, 60453. Phone: (708) 684-4393. Providers update this record themselves, so call before visiting.

How can I verify Catherine Gas, FNP-BC's license?

NPPES lists Illinois license number 209025059, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Catherine Gas, FNP-BC prescribe under Medicare Part D?

In 2024, Catherine Gas, FNP-BC had 32 Medicare Part D claims for 18 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions 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. Medicare files from data.cms.gov. 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.