Dr. Joseph Donzelli, M.D.
What this data tells you about Dr. Donzelli
Dr. Joseph Donzelli is an otolaryngology specialist in Naperville, IL, with 19 years of NPI registration. Based on federal Medicare data, Dr. Donzelli performed 2,843 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Donzelli received a total of $8,227 from 36 pharmaceutical and/or device companies across 262 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. Donzelli 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.
Medicare Practice Summary — 2023
Medicare Utilization ↗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 |
|---|---|---|---|
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
702 | $67 | $157 |
| Skin allergy test A test where small amounts of potential allergens are injected into the skin to check for allergic reactions. |
474 | $7 | $19 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
254 | $8 | $20 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
216 | $83 | $235 |
| 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. |
202 | $97 | $229 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
183 | $9 | $46 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
183 | $16 | $86 |
| Nasal and throat exam with endoscope A procedure to visually examine the nose and throat using a thin, flexible tube with a camera. This allows for direct visualization of the internal structures of the upper airway. |
156 | $95 | $366 |
| Nasal endoscopy A diagnostic procedure that uses a thin, lighted tube to examine the inside of the nasal passages. |
122 | $156 | $450 |
| Ear wax removal A procedure to remove impacted ear wax from the ear canal. |
93 | $36 | $116 |
| Parathyroid hormone level test A blood test that measures the amount of parathyroid hormone in your body. This hormone helps regulate calcium levels in the blood and bones. |
52 | $40 | $212 |
| Impacted earwax removal by physician Removal of impacted earwax from one or both ears by a physician on the same day as audiologic testing. |
38 | $39 | $112 |
| Total calcium level test A blood test that measures the total amount of calcium in your body. |
35 | $5 | $26 |
| Blood creatinine level test A blood test that measures the amount of creatinine, a waste product from muscle wear and tear, to help assess kidney function. |
33 | $5 | $26 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
26 | $29 | $152 |
| Free T3 thyroid hormone test A blood test that measures the level of free triiodothyronine (T3) hormone in your body. This helps assess how well your thyroid gland is functioning. |
26 | $17 | $58 |
| Blood urea nitrogen test A blood test that measures the amount of urea nitrogen to assess kidney function. |
24 | $4 | $20 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
13 | $8 | $40 |
| Middle ear function test A diagnostic test used to evaluate how well the middle ear is functioning. |
11 | $12 | $54 |
Industry Payment Transparency
Open Payments through 2024 ↗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.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
Geographic Context
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. Donzelli is a clinical cardiology specialist, with above-average Medicare volume (top 6% in IL), 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. Donzelli experienced with office visit, established patient (20-29 min)?
Does Dr. Donzelli receive payments from pharmaceutical companies?
How do Dr. Donzelli's costs compare to other otolaryngologists in Naperville?
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Is this data up to date?
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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.
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