Physician

Nathan Carpenter, MD

According to 2025 Medicare claims, Nathan Carpenter, MD (NPI: 1083025548) practices ophthalmology in the Mankato, MN market, with the plurality of this provider's patient population coming from Blue Earth, MN. This provider's primary affiliated billing organization is OPHTHALMOLOGY ASSOCIATES OF MANKATO PA (NPI: 1801892237; TIN: 411227653) and primary practice location at 56001-6795.

Carpenter's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 1,157 traditional Medicare patients, billed 2,989 HCPCS/CPT codes, and received $368,728 in Medicare payments. The top billing code was 66984 (Removal of cataract with insertion of prosthetic lens). Part D data shows 2,443 prescription claims across 589 beneficiaries totaling $128,154 in drug costs, led by Lumigan (Bimatoprost). DME data shows 34 claims. Open Payments data shows 5 records totaling $105. 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 moved sharply higher in recent years, from $67,544 to $368,728. Similarly, Part D prescription costs have moved sharply higher in recent years, from $6,774 to $128,154. 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	N/R	N/R	N/R
2018	N/R	N/R	N/R
2019	383	1,233	$67,544
2020	566	2,357	$149,468
2021	615	2,449	$189,602
2022	873	3,089	$302,774
2023	1,220	3,716	$440,911
2024	1,157	2,989	$368,728

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	18	54	$6,774
2016	22	53	$4,930
2017	N/R	13	$1,135
2018	N/R	N/R	N/R
2019	112	280	$10,203
2020	207	673	$37,636
2021	252	919	$50,859
2022	400	1,418	$67,771
2023	554	2,020	$133,037
2024	589	2,443	$128,154

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	N/R	N/R
2021	30	30	$1,780
2022	35	35	$2,600
2023	46	46	$3,388
2024	34	34	$2,352

* / # = 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
66984	Removal of cataract with insertion of prosthetic lens	231	451	$321
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	290	302	$83
92014	Established patient complete exam of visual system	460	463	$82
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	255	313	$59
92136	Measurement of corneal curvature and depth of eye	261	334	$30

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Lumigan	Bimatoprost	40	2,809	$23,255
Ketorolac Tromethamine	Ketorolac Tromethamine	347	7,195	$16,105
Prednisolone Acetate	Prednisolone Acetate	365	8,249	$11,223
Latanoprost	Latanoprost	568	37,472	$8,805
Moxifloxacin	Moxifloxacin Hcl	302	4,086	$6,542

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
V2303	Spherocylinder, trifocal, plano to plus or minus 4.00d sphere, .12-2.00d cylinder, per lens	N	15	15	$1,214
V2020	Frames, purchases	N	19	19	$1,138

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	5	$105	ABBVIE 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 Nathan Carpenter, MD?

Tedicare shows public-source Medicare data for Nathan Carpenter, MD (NPI 1083025548), 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 Nathan Carpenter, 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 Nathan Carpenter, MD?

Nathan Carpenter, MD is linked to OPHTHALMOLOGY ASSOCIATES OF MANKATO PA (billing NPI 1801892237) in the available physician profile data.

Does Nathan Carpenter, MD have Open Payments data?

Nathan Carpenter, 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.