Physician

Margaret Laughlin Winkler, MD

According to 2025 Medicare claims, Margaret Winkler, MD (NPI: 1457362147) practices internal medicine in the Hammond, LA market, with the plurality of this provider's patient population coming from Tangipahoa, LA. This provider's primary affiliated billing organization is NORTH OAKS INTERNAL MEDICINE (NPI: 1942389986; TIN: 72-0814014) and primary practice location at 70403-1446.

Winkler's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 109 traditional Medicare patients, billed 1,540 HCPCS/CPT codes, and received $93,615 in Medicare payments. The top billing code was G0439 (Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit). Part D data shows 10,502 prescription claims across 321 beneficiaries totaling $949,275 in drug costs, led by Mounjaro (Tirzepatide). DME data shows 73 claims. Open Payments data shows 26 records totaling $491. 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 started with an early spike, then settled into a lower baseline, moving from $377,689 to $93,615. Similarly, Part D prescription costs have declined steadily, from $1,498,485 to $949,275. In contrast, DME billing represents a smaller volume and started with an early spike, then settled into a lower baseline, moving from $71,998 to $12,091.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	787	5,930	$377,689
2016	772	5,933	$366,450
2017	703	5,099	$316,923
2018	591	4,718	$299,275
2019	337	3,167	$209,430
2020	253	1,973	$140,848
2021	228	1,836	$150,805
2022	186	2,034	$138,154
2023	143	1,695	$99,257
2024	109	1,540	$93,615

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	744	19,940	$1,498,485
2016	739	21,279	$1,539,965
2017	717	20,581	$1,568,828
2018	773	21,488	$1,556,781
2019	691	21,914	$1,505,154
2020	573	21,138	$1,435,219
2021	558	18,267	$1,380,721
2022	496	14,940	$1,251,268
2023	367	10,996	$1,054,196
2024	321	10,502	$949,275

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	315	1,145	$47,188
2016	351	1,475	$49,819
2017	185	998	$33,942
2018	221	1,045	$35,743
2019	166	868	$23,882
2020	65	605	$21,610
2021	31	408	$17,078
2022	13	266	$13,178
2023	13	190	$5,350
2024	N/R	73	$2,963

* / # = 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
G0439	Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	31	31	$120
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	104	882	$85
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	39	56	$50
80305	Testing for presence of drug, read by direct observation	27	95	$12
96160	Administration and interpretation of patient-focused health risk assessment	93	215	$2

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Mounjaro	Tirzepatide	145	4,068	$153,149
Eliquis	Apixaban	146	4,500	$92,235
Ozempic	Semaglutide	84	2,772	$87,657
Humira Pen	Adalimumab	12	336	$81,740
Januvia	Sitagliptin Phosphate	67	2,000	$37,798

Top 5 DME services in 2024

By Total Medicare Payment Amount.

HCPCS Code	HCPCS Description	Supplier Rental Indicator	Total Supplier Beneficiaries	Total Supplier Claims	Total Medicare Payment Amount
E1390	Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate	Y	N/R	33	$2,376
K0001	Standard wheelchair	Y	N/R	12	$219
A4253	Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips	N	N/R	16	$188
E0431	Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing	Y	N/R	12	$181

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	26	$491	SCILEX PHARMACEUTICALS 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 Margaret Laughlin Winkler, MD?

Tedicare shows public-source Medicare data for Margaret Laughlin Winkler, MD (NPI 1457362147), 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 Margaret Laughlin Winkler, MD have ACO affiliation data?

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

What billing organization is linked to Margaret Laughlin Winkler, MD?

Margaret Laughlin Winkler, MD is linked to NORTH OAKS INTERNAL MEDICINE (billing NPI 1942389986) in the available physician profile data.

Does Margaret Laughlin Winkler, MD have Open Payments data?

Margaret Laughlin Winkler, MD has 26 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.