Physician

Aaron Harris Cohn, M.D.

According to 2025 Medicare claims, Aaron Cohn, M.D. (NPI: 1841586211) practices gastroenterology in the Lake County, IL market, with the plurality of this provider's patient population coming from Lake, IL. This provider's primary affiliated billing organization is NORTHWESTERN MEDICAL FACULTY FOUNDATION (NPI: 1346235314; TIN: 363097297) and primary practice location at 60030-2013. Cohn is affiliated with the Northwestern Medicine Physician Network ACO (ACO ID: A2620), participating under the MSSP model.

Cohn's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 498 traditional Medicare patients, billed 832 HCPCS/CPT codes, and received $97,659 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 1,018 prescription claims across 421 beneficiaries totaling $464,576 in drug costs, led by Linzess (Linaclotide). 2020 DME data shows 55 claims. Open Payments data shows 15 records totaling $537. 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 $4,453 to $97,659. Similarly, Part D prescription costs have risen steadily, from $3,489 to $464,576. 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	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	31	54	$4,453
2018	141	249	$20,757
2019	285	633	$69,755
2020	291	578	$61,993
2021	420	803	$95,503
2022	454	833	$98,179
2023	468	937	$104,405
2024	498	832	$97,659

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	24	28	$3,489
2018	61	79	$111,577
2019	120	180	$21,656
2020	160	374	$47,005
2021	246	577	$195,934
2022	298	672	$234,610
2023	315	731	$230,904
2024	421	1,018	$464,576

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	N/R	N/R	N/R
2018	N/R	N/R	N/R
2019	N/R	N/R	N/R
2020	N/R	55	$32,413
2021	N/R	N/R	N/R
2022	N/R	N/R	N/R
2023	N/R	N/R	N/R
2024	N/R	N/R	N/R

* / # = 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	83	83	$208
99204	New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	125	125	$127
45380	Biopsy of large bowel using a flexible endoscope	63	63	$114
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	102	116	$97
43239	Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	82	84	$73

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Linzess	Linaclotide	61	2,460	$42,390
Sod Sulf-Potass Sulf-Mag Sulf	Sodium, Potassium,mag Sulfates	208	241	$13,763
Vancomycin Hcl	Vancomycin Hcl	29	1,303	$7,822
Budesonide Dr	Budesonide	28	1,090	$7,149
Motegrity	Prucalopride Succinate	14	420	$7,111

Top 5 DME services in 2024

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

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	15	$537	Janssen Biotech, Inc.
Research Payments	Reported research-related payment or transfer-of-value amount.	0	$0	N/R
Ownership / Investment Interests	Reported value of ownership or investment interests.	0	$0	N/R

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FAQ

What Medicare data is available for Aaron Harris Cohn, M.D.?

Tedicare shows public-source Medicare data for Aaron Harris Cohn, M.D. (NPI 1841586211), 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 Harris Cohn, M.D. have ACO affiliation data?

Aaron Harris Cohn, M.D. is shown with ACO affiliation data for Northwestern Medicine Physician Network ACO (MSSP, ACO ID A2620).

What billing organization is linked to Aaron Harris Cohn, M.D.?

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

Does Aaron Harris Cohn, M.D. have Open Payments data?

Aaron Harris Cohn, M.D. has 15 connected Open Payments records in the available 2024 summary 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.