NPPES file of Aug 9, 2026

Anita L. Ong, MD

Anatomic Pathology & Clinical Pathology Physician · Chicago, IL

Anita L. Ong, MD is an anatomic pathology & clinical pathology physician with a practice address in Chicago, Illinois, and NPI 1891806907, issued on Aug 31, 2006. Check the license (Illinois 03093236, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1891806907
Name
Anita L. Ong
Credential
MD
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License numbers
03093236 IL
01053424A IN
Self-reported in NPPES; status is on the state search
Practice location
2929 S Ellis Avenue, Chicago, IL 60616
Phone
(312) 791-5344
Enumerated
Aug 31, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(312) 791-2434
Medicaid IDs
0360932362 IN
0360932362 IL
Medicare enrollment
Enrolled (PECOS I20041020000163); 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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Verify Anita L. Ong 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 03093236
    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

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Bills Medicare through one group practice

  1. Pathology Consultants OF Chicago, Ltd.Chicago, IL

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

Anatomic Pathology & Clinical Pathology Physician providers in Illinois

There are 789 anatomic pathology & clinical pathology physician records in Illinois.

Other anatomic pathology & clinical pathology physician records in Illinois

  1. Amer Abboud, MDBerwyn, IL1154348696
  2. Elham Abboud, MDChicago, IL1164409447
  3. Shahad Abdulameer, M.D.Maywood, IL1174905814
  4. John Abran, MDChicago Heights, IL1942293832
  5. Schuharazad AbroMaywood, IL1376078816
  6. Julia AdamsPeoria, IL1780819037
  7. Moses Adeyanju, M.D.Carbondale, IL1306820121
  8. Brian Adley, MDChicago, IL1932151966
  9. Ven Aduana, M.D.Geneva, IL1699757369
  10. Amar AgadiElgin, IL1407015415

Common questions

What is Anita L. Ong, MD's NPI number?

Anita L. Ong, MD's National Provider Identifier (NPI) is 1891806907, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Anita L. Ong, MD located?

The NPPES record lists a practice address at 2929 S Ellis Avenue, Chicago, IL, 60616. Phone: (312) 791-5344. Providers update this record themselves, so call before visiting.

How can I verify Anita L. Ong, MD's license?

NPPES lists Illinois license number 03093236, 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), 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.

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.