Physician

Aaron J Shiels, M.D.

According to 2025 Medicare claims, Aaron Shiels, M.D. (NPI: 1467448324) practices gastroenterology in the Rockford, IL market, with the plurality of this provider's patient population coming from Winnebago, IL. This provider's primary affiliated billing organization is ROCKFORD GASTROENTEROLOGY ASSOCIATES, LTD. (NPI: 1447207741; TIN: 36-3081482) and primary practice location at 61107-5075.

Shiels' data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 448 traditional Medicare patients, billed 6,720 HCPCS/CPT codes, and received $158,737 in Medicare payments. The top billing code was 45385 (Removal of polyps or growths of large bowel using an endoscope with mechanical snare). Part D data shows 1,051 prescription claims across 259 beneficiaries totaling $404,486 in drug costs, led by Humira(Cf) (Adalimumab). No Open Payments records. You can download detailed data with all billing codes (2015-2024). For more recent data, please contact us.

Over the past 10 years, this provider's Medicare Part B carrier billing has changed little. Concurrently, Part D prescription costs started with an early spike, then settled into a lower baseline, moving from $2,430,817 to $404,486. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.

Part B Carrier Billing Trend

Medicare payment trend, with N of patients and claim lines in the table.

Year	Patients	Clm Lines	Payment
2015	667	1,008	$116,832
2016	662	1,136	$116,858
2017	682	1,486	$118,730
2018	615	1,380	$108,311
2019	622	1,432	$114,236
2020	533	3,599	$121,091
2021	532	3,957	$131,669
2022	499	5,767	$134,736
2023	490	5,605	$170,103
2024	448	6,720	$158,737

Part D Events Trend

Drug cost trend, with N of patients and prescription claims in the table.

Year	Patients	Claims	Drug Cost
2015	181	920	$2,430,817
2016	159	882	$645,663
2017	162	776	$561,076
2018	175	725	$573,555
2019	167	728	$463,316
2020	170	809	$415,600
2021	160	782	$475,205
2022	369	1,129	$553,570
2023	412	1,246	$555,812
2024	259	1,051	$404,486

DME Billing Trend

Medicare payment trend, with N of patients and DME claim records in the table.

No connected DME records

* / # = suppressed by CMS; 0 = reported zero; N/R = not reported or blank.

Top 5 Part B carrier billing codes in 2024

By total payments.

Code	Description	Patients	Clm Lines	Total Payment
45385	Removal of polyps or growths of large bowel using an endoscope with mechanical snare	87	87	$196
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	69	75	$86
43239	Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	60	60	$82
88305	Pathology examination of tissue using a microscope, intermediate complexity	112	209	$23
G0500	Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito	178	181	$5

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Humira(Cf)	Adalimumab	26	364	$192,063
Creon	Lipase/Protease/Amylase	31	924	$79,951
Xifaxan	Rifaximin	11	330	$34,350
Mesalamine	Mesalamine	29	2,376	$16,047
Ursodiol	Ursodiol	73	3,498	$12,830

Top 5 DME services in 2024

No connected or detailed DME service-level records for 2024.

Open Payments Summary

No connected Open Payments records were found for this physician in General Payments, Research Payments, or Ownership / Investment Interests.

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FAQ

What Medicare data is available for Aaron J. Shiels, M.D.?

Tedicare shows public-source Medicare data for Aaron J. Shiels, M.D. (NPI 1467448324), including provider identity, specialty, market context, Medicare Part B activity, Part D prescribing, DME records, Open Payments where available, billing organization details, and ACO affiliation signals where available. Profile data covers 2015-2024, with current attribution based on 2025 claims where available.

Does Aaron J. Shiels, M.D. have ACO affiliation data?

No ACO affiliation record is shown in the available Tedicare data for this profile.

What billing organization is linked to Aaron J. Shiels, M.D.?

Aaron J. Shiels, M.D. is linked to ROCKFORD GASTROENTEROLOGY ASSOCIATES, LTD. (billing NPI 1447207741) in the available physician profile data.

Does Aaron J. Shiels, M.D. have Open Payments data?

No connected Open Payments records are shown for this physician in the available General Payments, Research Payments, or Ownership / Investment Interests data.

Can I download physician-level Medicare data from Tedicare?

Yes. Tedicare provides sample physician export data and paid custom physician data exports for research, planning, outreach, and market analysis. Exports can include physician profile fields, market and specialty context, billing organization details, ACO affiliation signals where available, and Medicare utilization data.