Physician

Mark Albert Nelson, MD

According to 2025 Medicare claims, Mark Nelson, MD (NPI: 1891737763) practices gastroenterology in the Michigan City-La Porte, IN market, with the plurality of this provider's patient population coming from La Porte, IN. This provider's primary affiliated billing organization is FRANCISCAN PHYSICIAN NETWORK (NPI: 1225327984; TIN: 611630276) and primary practice location at 46360-0021. Nelson is affiliated with the Franciscan ACO, Inc. (ACO ID: A2550) and Main Street Rural Health Cedar ACO LLC (ACO ID: A5502), participating under the MSSP model.

Nelson's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 591 traditional Medicare patients, billed 1,274 HCPCS/CPT codes, and received $105,197 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 1,328 prescription claims across 326 beneficiaries totaling $580,231 in drug costs, led by Linzess (Linaclotide). 2015 DME data shows 12 claims. Open Payments data shows 5 records totaling $182. 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 did not follow a clear longitudinal pattern. 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	772	1,668	$174,128
2016	774	1,640	$163,382
2017	719	1,917	$149,807
2018	747	2,080	$153,552
2019	821	2,233	$174,193
2020	708	1,888	$150,977
2021	719	1,796	$147,680
2022	614	1,474	$121,910
2023	643	1,552	$126,614
2024	591	1,274	$105,197

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	386	1,507	$892,428
2016	358	1,494	$624,527
2017	299	1,445	$527,967
2018	304	1,537	$380,623
2019	314	1,443	$376,738
2020	323	1,517	$355,993
2021	342	1,423	$631,090
2022	320	1,310	$563,430
2023	343	1,318	$527,335
2024	326	1,328	$580,231

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	N/R	12	$648
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	N/R	N/R
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	178	181	$192
99232	Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	67	123	$57
43239	Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	124	127	$57
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	148	171	$57
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	197	200	$3

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Linzess	Linaclotide	72	2,970	$53,148
Mesalamine	Mesalamine	57	2,999	$22,609
Dexlansoprazole Dr	Dexlansoprazole	15	1,050	$3,521
Esomeprazole Magnesium	Esomeprazole Magnesium	32	2,760	$2,842
Pantoprazole Sodium	Pantoprazole Sodium	243	15,487	$2,601

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.	5	$182	Olympus America 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 Mark Albert Nelson, MD?

Tedicare shows public-source Medicare data for Mark Albert Nelson, MD (NPI 1891737763), 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 Mark Albert Nelson, MD have ACO affiliation data?

Mark Albert Nelson, MD is shown with ACO affiliation data for Franciscan ACO, Inc. (MSSP, ACO ID A2550) and Main Street Rural Health Cedar ACO LLC (MSSP, ACO ID A5502).

What billing organization is linked to Mark Albert Nelson, MD?

Mark Albert Nelson, MD is linked to FRANCISCAN PHYSICIAN NETWORK (billing NPI 1225327984) in the available physician profile data.

Does Mark Albert Nelson, MD have Open Payments data?

Mark Albert Nelson, MD has 5 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.