NPPES file of Aug 9, 2026

Pia Angela Ong, M.D.

Hospitalist Physician · Rockford, IL

Pia Angela Ong, M.D. is a hospitalist physician with a practice address in Rockford, Illinois, and NPI 1831207174, issued on Aug 28, 2006. Check the license (Illinois 036116711, 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
1831207174
Name
Pia Angela Ong
Credential
M.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
036116711 IL
Self-reported in NPPES; status is on the state search
Practice location
5666 East State St, Rockford, IL 61108
Phone
(815) 226-2000
Enumerated
Aug 28, 2006
Record last updated
Jan 30, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(815) 227-2880
Medicare enrollment
Enrolled (PECOS I20060913000570); 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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8 nearest hospitalist physician records → All 1,535 in Illinois → Look up another NPI →

Also registered at 5666 East State St

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

  1. Anil Amin, M.D.Hospitalist Physician1780604900
  2. Priscilla Babler, R.D.Registered Dietitian1639100324
  3. Gregory Bullis, M.D.Emergency Medical Services (Emergency Medicine) Physician1497784797
  4. Lenore Conboy, R.D.Registered Dietitian1427080811
  5. Julie De Roush, R.D.Registered Dietitian1740212638
  6. Mete Korkmaz, M.D.Medical Oncology Physician1902833999

Verify Pia Angela 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 036116711    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.

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Bills Medicare through one group practice

  1. Osf Multi-Specialty GroupRockford, IL

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

Pia Angela Ong among 1,535 hospitalist physician records in Illinois

Pia Angela Ong, M.D. is one of 1,535 hospitalist physician records with a practice address in Illinois. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 1% of them.

  • NPI issued2006 · 1% of these records are older, 88% newer
  • In a Medicare fileYes · 92% of these records are
  • In the CMS Doctors and Clinicians fileYes · 87% of these records are
  • Graduated1999 · median 2013 among the 1,339 with a school on file
  • Record last updated2020 · 32% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in Illinois

There are 1,535 hospitalist physician records in Illinois.

All 1,535 in Illinois → Every provider in Rockford → Hospitalist Physician nationwide →

The 8 hospitalist physician records with the nearest ZIP codes

  1. Nausheen Ahmed, MDRockford, IL 611081235322215
  2. Faheemuddin Ahmed, M.D.Rockford, IL 611081366619595
  3. Azra Ali, M.D.Rockford, IL 611081700804028
  4. Anil Amin, M.D.Rockford, IL 611081780604900
  5. Zlatina Manov, MDRockford, IL 611081477701639
  6. Allan Ong, M.D.Rockford, IL 611081760411367
  7. Syeda Quadri, M.D.Rockford, IL 611081790070746
  8. Susmita Ayyagari, MDRockford, IL 611071275776445

Common questions

What is Pia Angela Ong, M.D.'s NPI number?

Pia Angela Ong, M.D.'s National Provider Identifier (NPI) is 1831207174, issued on Aug 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Pia Angela Ong, M.D. located?

The NPPES record lists a practice address at 5666 East State St, Rockford, IL, 61108. Phone: (815) 226-2000. Providers update this record themselves, so call before visiting.

How can I verify Pia Angela Ong, M.D.'s license?

NPPES lists Illinois license number 036116711, 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.

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.