Registry data as of Aug 27, 2026

Kathleen Casper, D.O.

Family Medicine Physician · Chicago, IL

Kathleen Casper, D.O. is a family medicine physician with a practice address in Chicago, Illinois, and NPI 1912004912, issued on Sep 20, 2006. Check the license (Illinois 036066773, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; 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
1912004912
Name
Kathleen Casper
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
036066773 IL
Self-reported in NPPES; status is on the state search
Practice location
3235 W 111TH St, Chicago, IL 60655
Phone
(773) 445-2802
Enumerated
Sep 20, 2006
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 3235 W 111TH St

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

  1. Labinot Avdiu, PHARM.D.Pharmacist1558466490
  2. Kastytis Jucas, M.D.Dermatology Physician1609876952

Verify Kathleen Casper in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036066773
    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
Open 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.

1,593 family medicine physician records list a Chicago practice address

They are 1,593 of the 63,379 NPPES records with a Chicago practice address, and 6,215 family medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other family medicine physician records in Illinois

  1. Jon Aagaard, MDWheaton, IL1750496923
  2. Napoleon Abando, MDWoodstock, IL1003972753
  3. Nikka Abaricia, MDChicago, IL1790366342
  4. Mohemmed AbbasChicago, IL1609612522
  5. Muhammad AbbasAlton, IL1588341556
  6. Syed AbbasWest Dundee, IL1972733103
  7. Stefanie AbbottMaywood, IL1861137457
  8. Roann Abdeladl, MDEvanston, IL1437087103
  9. Ahmed Abdelkader, MDChicago, IL1659104230
  10. Guy Abderholden, MDAntioch, IL1902899792

Common questions

What is Kathleen Casper, D.O.'s NPI number?

Kathleen Casper, D.O.'s National Provider Identifier (NPI) is 1912004912, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kathleen Casper, D.O. located?

The NPPES record lists a practice address at 3235 W 111TH St, Chicago, IL, 60655. Phone: (773) 445-2802. Providers update this record themselves, so call before visiting.

How can I verify Kathleen Casper, D.O.'s license?

NPPES lists Illinois license number 036066773, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.

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.