Physician

Gregory N Tjossem, MD

Family practice La Crosse-Onalaska, WI-MN Gundersen Clinic Ltd

According to 2025 Medicare claims, Gregory N. Tjossem, MD (NPI: 1215931696) practices family practice in the La Crosse-Onalaska, WI-MN market, with the plurality of this provider's patient population coming from Houston, MN. This provider's primary affiliated billing organization is Gundersen Clinic Ltd (NPI: 1851343115; TIN: ).

Tjossem's data goes back to 2012 and runs through 2026. For example, in 2023, this provider had 207 traditional Medicare patients, billed 4,314 HCPCS/CPT codes, and received $47,315 in Medicare payments. Part D data shows 4,302 prescription claims across 262 beneficiaries totaling $273,967 in drug costs, and DME data shows 31 claims. No Open Payments records.

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10-Year Trend of Part B billing

Medicare payment trend, with patients and services in the table.

Year	Patients	Services	Medicare Payment
2014	125	232	$8,609
2015	130	241	$9,084
2016	Not reported for this year	Not reported for this year	Not reported for this year
2017	Not reported for this year	Not reported for this year	Not reported for this year
2018	Not reported for this year	Not reported for this year	Not reported for this year
2019	Not reported for this year	Not reported for this year	Not reported for this year
2020	27	366	$2,381
2021	208	2,960	$39,127
2022	263	8,724	$60,447
2023	207	4,314	$47,315

10-Year Trend of Part D records

Prescription claims trend, with patients and drug cost in the table.

Year	Patients	Claims	Drug Cost
2014	321	3,519	$214,906
2015	116	552	$18,818
2016	96	653	$22,427
2017	147	1,046	$51,176
2018	164	1,396	$58,806
2019	229	1,532	$54,771
2020	224	1,526	$49,537
2021	258	2,076	$115,149
2022	306	4,231	$256,037
2023	262	4,302	$273,967

10-Year Trend of DME records

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

Year	Patients	Claims	Medicare Payment
2014	50	226	$24,458
2015	27	88	$8,674
2016	11	37	$2,855
2017	Not reported for this year	21	$1,580
2018	Not reported for this year	18	$1,623
2019	Not reported for this year	Not reported for this year	Not reported for this year
2020	Not reported for this year	Not reported for this year	Not reported for this year
2021	Not reported for this year	15	$1,023
2022	14	28	$1,270
2023	13	31	$1,821

Top 5 Part B billing codes in 2023

By N of patients.

No connected Part B code-level records for 2023.

Top 5 Part D drugs in 2023

By N of patients.

No connected Part D drug-level records for 2023.

Top 5 DME in 2023

By N of patients.

DME	Patients	Claims	Services	Medicare Payment
Prosthetics, orthotics, and supplies	Not reported for this year	21	2,281	$11,202
All DME supplier activity	13	52	3,228	$13,023
Durable medical equipment	12	31	947	$1,821
DME drugs	0	0	0	$0

DME category summary is shown when item-level DME rows are not connected.

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Part B billing, Part D prescribing, DME records, yearly summaries, source JSON, and source notes.

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