NPI registry status
Active
2026 NPPES data Hospitalist Physician NPI 1760411367 M.D.
Verify on CMS → Allan Ong, M.D.
Hospitalist Physician in Rockford, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 17,950 in Hospitalist Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
416
Medicare Part D claims · 153 beneficiaries · Hospitalist Physician avg: 940
What the federal data shows
Allan Ong, M.D. filed 416 Medicare Part D claims in 2024 as a Hospitalist Physician in Rockford, Illinois.
- 416
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥61st
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Allan Ong, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1760411367), first enumerated 07/03/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 416 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not Allan Ong, M.D.'s individual license status. Verify directly with the state medical board.
Source: IDFPR annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1760411367 · Hospitalist Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1760411367
- ENUM-LEGACY 2006
- TAX-MID 18K Hospitalist Physician
- RX-LIGHT 416
- BOOK-LIGHT 880 in Illinois
- PHOTO-ENUM Richa Sharma, MD · 2006
Allan Ong, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
416 ≥ 61st percentile 61% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Allan Ong, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Allan Ong, M.D.?
Quality data not reportedPrimary specialty
Hospitalist Physician
Medicare Part D claims
416 56% vs specialty avg
Specialty distribution in Illinois
How Hospitalist Physician compares to other specialties among Illinois providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Hospitalist Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1760411367 |
|---|---|
| Specialty | Hospitalist Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/03/2006 |
Hospital and facility affiliations
Facilities where Allan Ong, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Osf Multi-Specialty Group
Rockford, IL
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - Illinois IDFPR 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 - they are NOT specific to Allan Ong, M.D.. To verify Allan Ong, M.D.'s current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
416
Total Claims
$33K
Total Drug Cost
153
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 472.4
- Total Day Supply
- 10,392
- Generic Drug Cost
- $3K
- Opioid Claims
- 34 (8.2% rate)
- Antibiotic Claims
- 65
Patient Demographics
- Average Patient Age
- 74.2 years
- Avg HCC Risk Score
- 2.34
- Gender Split
- 52% female / 48% male
- Age Distribution
- <65: 22, 65-74: 53, 75-84: 56, 85+: 22
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Allan Ong, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
21 claims
- Prednisone
Prednisone
21 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
18 claims
- Spironolactone
Spironolactone
18 claims
- Basaglar Kwikpen U…
Basaglar Kwikpen U-100
16 claims
- Metoprolol Succinate
Metoprolol Succinate
14 claims
- Amlodipine Besylate
Amlodipine Besylate
13 claims
- Furosemide
Furosemide
13 claims
| Drug | Claims |
|---|---|
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 21 |
| Prednisone | 21 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 18 |
| Spironolactone | 18 |
| Basaglar Kwikpen U-100 Insulin Glargine,hum.Rec.Anlog | 16 |
| Metoprolol Succinate | 14 |
| Amlodipine Besylate | 13 |
| Furosemide | 13 |
| Jardiance Empagliflozin | 12 |
| Lisinopril | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hospitalist Physician Overview
How Allan Ong, M.D. fits within the Hospitalist Physician landscape nationally.
17,950
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
940
Avg Claims per Provider
Allan Ong, M.D.'s 416 claims are below the specialty average of 940.
Nationwide Hospitalist Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Ong, both outside Illinois so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Hospitalist Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Ong.
One of 880 Hospitalist Physician providers enrolled in Illinois, 5 are shown here.
Dr. Hasan Abad
D.O.
Chicago, IL
Dr. Osamah Abdallah
M.D.
Maywood, IL
Dr. Hossam Abdel Aziz
MD
Winfield, IL
Dr. Gina Abraham
MD
Franklin Park, IL
Rebecca Abraham
PA-C
Chicago, IL
Compare Hospitalist Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Allan Ong, M.D.'s specialty? ▼
Allan Ong, M.D. specializes in Hospitalist Physician and practices in Rockford, Illinois. Credentials: M.D..
How much does Allan Ong, M.D. prescribe under Medicare Part D? ▼
In 2024, Allan Ong, M.D. wrote 416 Medicare Part D claims totaling $33K in drug costs for 153 beneficiaries.
Where is Allan Ong, M.D. located? ▼
Allan Ong, M.D. is located at 5666 EAST STATE ST, Rockford, IL, 61108. Phone: (815) 226-2000.
What is Allan Ong, M.D.'s NPI number? ▼
Allan Ong, M.D.'s National Provider Identifier (NPI) is 1760411367, issued on 07/03/2006.
Does Allan Ong, M.D. prescribe opioids? ▼
Yes, Allan Ong, M.D. had 34 opioid claims in 2024 with an opioid prescribing rate of 8.2%.
How many Hospitalist Physician providers are there in the US? ▼
There are 17,950 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 940 Medicare Part D claims per year.
What drugs does Allan Ong, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Allan Ong, M.D.'s most frequently prescribed drugs include Amoxicillin-Clavulanate Potass, Prednisone, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Allan Ong, M.D. accept Medicare? ▼
Allan Ong, M.D. appears in CMS Medicare data with 416 Part D claims and 153 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Allan Ong, M.D.'s credentials? ▼
Allan Ong, M.D.'s NPI is 1760411367 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
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 August 2026.