Medicare Enrolled

Dr. Diane Ozog, MD

Pediatric Allergy/Immunology Physician · Naperville, IL
Practice pattern: Clinical Cardiology — Primarily office-based clinical cardiology
1331 W 75TH ST STE 303, Naperville, IL 60540
6306520606
Registered in NPPES since 2007
NPI: 1972647154 verify on NPPES ↗
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating. This page presents federal public records about Dr. Ozog from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Ozog

Dr. Diane Ozog is a pediatric allergy/immunology physician in Naperville, IL, with 19 years of NPI registration. Based on federal Medicare data, Dr. Ozog performed 1,572 Medicare services in 2023. These records do not provide a deduplicated patient total.

Between the years covered by Open Payments, Dr. Ozog received a total of $10,235 from 11 pharmaceutical and/or device companies across 46 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Ozog is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.

✓ 19 years of NPI registration ▲ Top 50% volume in IL $10,235 industry payments

Medicare Practice Summary — 2023

Medicare Utilization ↗
1,572
Medicare services
Top 50% in IL for pediatric allergy/immunology physician
Not available
Unique patients (not deduplicated)
$25
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →

Top procedures by volume

Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.

Procedure Volume Avg. paid Avg. submitted
Allergy skin test
A diagnostic test performed to identify specific allergies by applying or introducing allergenic extracts to the body. The procedure measures the patient's immune response to various potential allergens.
558 $3 $17
Allergy immunotherapy preparation
A professional service involving the preparation and administration of one or more antigens.
308 $11 $35
Office visit, established patient (30-39 min)
A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition.
260 $96 $330
Allergy injection therapy, multiple injections
A professional service involving the administration of multiple allergen injections.
248 $8 $33
Expiratory airflow and volume test
A test that measures the amount of air you can exhale and the speed at which you can breathe it out. It evaluates lung function by assessing expiratory airflow and volume.
154 $22 $175
New patient office visit (45-59 min)
An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter.
28 $118 $400
Breathing device use evaluation
An assessment of how a patient uses a breathing device. The provider reviews the patient's technique and device handling.
16 $14 $30
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. These counts do not measure clinical quality or years of experience.

Industry Payment Transparency

Open Payments through 2024 ↗
$10,235
Total received (2018-2024)
Avg $1,462/year across 7 years
Top 7% in IL for pediatric allergy/immunology physician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
11
Companies
46
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →

Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$1,220
2023
$1,864
2022
$699
2021
$223
2020
$1,501
2019
$577
2018
$4,150

Payments by company (2024)

AstraZeneca Pharmaceuticals LP
$486
GENZYME CORPORATION
$422
Regeneron Healthcare Solutions, Inc.
$186
GlaxoSmithKline, LLC.
$125
Top 3 companies account for 89.8% of 2024 payments
All-time payments by company (2018-2024) ›
Regeneron Healthcare Solutions, Inc.
$3,115
Teva Pharmaceuticals USA, Inc.
$2,126
ALK-Abello, Inc
$1,456
AstraZeneca Pharmaceuticals LP
$1,445
GENZYME CORPORATION
$934
GlaxoSmithKline, LLC.
$371
Amgen Inc.
$232
Genentech USA, Inc.
$191
Kaleo, Inc.
$144
ABBVIE INC.
$117
Centinel Spine, LLC
$104
Top 3 companies account for 65.4% of all-time payments
Associated products mentioned in payments ›
AIRSUPRA · AUVI-Q · Auvi-Q · DUPIXENT · FASENRA · NUCALA · Odactra · PRODISC L · QVAR · RINVOQ · TEZSPIRE · Xolair
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Looking for a pediatric allergy/immunology physician in Naperville?
Compare pediatric allergy/immunology physicians in the Naperville area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Pediatric allergy/immunology physicians in nearby ZIP areas
10
County median income
$110,502
Nearest hospital to ZIP centroid (approximate)
EDWARD HOSPITAL
0.0 mi

Data Sources

Provider Registry NPPES NPPES snapshot; verify current record
Medicare Enrollment PECOS PECOS snapshot
Practice Data Medicare Util. Annual (CY lag)
Industry Payments Open Payments CY 2024
Disciplinary History — Not included N/A

This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →

Summary

Dr. Ozog is a clinical cardiology specialist, with moderate Medicare volume, with 19 years of NPI registration.

This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →

Frequently Asked Questions

Is Dr. Ozog experienced with allergy skin test?
Based on Medicare claims data, Dr. Ozog performed 558 allergy skin test services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Ozog receive payments from pharmaceutical companies?
Yes. Dr. Ozog received a total of $10,235 from 11 companies across 46 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Ozog's costs compare to other pediatric allergy/immunology physicians in Naperville?
Dr. Ozog's average Medicare payment per service is $25. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Ozog) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
About this page

This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.

This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Industry payment disclosure alone establishes neither wrongdoing nor legality. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →