Physician

Aaron Zirk, D.O.

According to 2025 Medicare claims, Aaron Zirk, D.O. (NPI: 1386917268) practices osteopathic manipulative therapy in the Elgin, IL market, with the plurality of this provider's patient population coming from De Kalb, IL. This provider's primary affiliated billing organization is NORTHWESTERN MEDICAL FACULTY FOUNDATION (NPI: 1346235314; TIN: 363097297) and primary practice location at 60115-9602. Zirk is affiliated with the Northwestern Medicine Physician Network ACO (ACO ID: A2620) and SBL accountable care organization (ACO ID: A5147), participating under the MSSP model.

Zirk's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 692 traditional Medicare patients, billed 751 HCPCS/CPT codes, and received $79,624 in Medicare payments. The top billing code was 99291 (Critical care, first 30-74 minutes). Part D data shows 347 prescription claims across 242 beneficiaries totaling $5,255 in drug costs, led by Cephalexin (Cephalexin). 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 risen steadily, from $7,682 to $79,624. Concurrently, Part D prescription costs have moved up and down with repeated peaks and valleys, starting at $3,023 and ending at $5,255. 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	65	67	$7,682
2016	500	573	$65,010
2017	707	804	$89,744
2018	749	841	$87,548
2019	826	894	$95,638
2020	752	792	$95,402
2021	776	863	$103,217
2022	854	942	$119,764
2023	779	850	$94,492
2024	692	751	$79,624

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	103	168	$3,023
2016	113	156	$1,654
2017	120	175	$2,392
2018	133	186	$1,748
2019	139	179	$2,022
2020	136	175	$2,605
2021	159	232	$1,973
2022	228	299	$2,877
2023	192	258	$3,181
2024	242	347	$5,255

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
99291	Critical care, first 30-74 minutes	16	16	$171
99285	Emergency department visit with high level of medical decision making	282	289	$134
99284	Emergency department visit with moderate level of medical decision making	353	365	$92
99283	Emergency department visit with low level of medical decision making	58	59	$53

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Cephalexin	Cephalexin	47	338	$242
Ondansetron Odt	Ondansetron	30	98	$206
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	21	147	$141
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	27	85	$88
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	17	105	$78

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 Zirk, D.O.?

Tedicare shows public-source Medicare data for Aaron Zirk, D.O. (NPI 1386917268), 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 Zirk, D.O. have ACO affiliation data?

Aaron Zirk, D.O. is shown with ACO affiliation data for Northwestern Medicine Physician Network ACO (MSSP, ACO ID A2620) and SBL accountable care organization (MSSP, ACO ID A5147).

What billing organization is linked to Aaron Zirk, D.O.?

Aaron Zirk, D.O. is linked to NORTHWESTERN MEDICAL FACULTY FOUNDATION (billing NPI 1346235314) in the available physician profile data.

Does Aaron Zirk, D.O. 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.