Physician

John Alexander Flatter, M.D.

According to 2025 Medicare claims, John Flatter, M.D. (NPI: 1780071662) practices ophthalmology in the Wausau, WI market, with the plurality of this provider's patient population coming from Marathon, WI. This provider's primary affiliated billing organization is EYE CLINIC OF WISCONSIN SC (NPI: 1740263458; TIN: 391093716) and primary practice location at 54403-4754.

Flatter's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 606 traditional Medicare patients, billed 2,376 HCPCS/CPT codes, and received $292,341 in Medicare payments. The top billing code was 66984 (Removal of cataract with insertion of prosthetic lens). Part D data shows 2,409 prescription claims across 604 beneficiaries totaling $103,791 in drug costs, led by Prednisolone Acetate (Prednisolone Acetate). DME data shows 20 claims. Open Payments data shows 32 records totaling $2,676. 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 $43,729 to $292,341. Similarly, Part D prescription costs have risen steadily, from $135 to $103,791. In contrast, DME billing represents a smaller volume and changed little.

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	149	595	$43,729
2020	448	1,503	$154,561
2021	710	2,180	$234,123
2022	741	2,377	$254,087
2023	765	2,444	$279,355
2024	606	2,376	$292,341

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	15	$135
2016	58	105	$7,750
2017	205	601	$74,822
2018	134	363	$46,768
2019	78	231	$14,714
2020	265	1,029	$46,247
2021	437	1,728	$70,072
2022	514	2,104	$91,700
2023	509	1,976	$84,255
2024	604	2,409	$103,791

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	28	28	$1,841
2021	26	26	$1,407
2022	41	41	$2,970
2023	12	12	$732
2024	20	20	$1,148

* / # = 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	277	473	$317
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	212	230	$87
92014	Established patient complete exam of visual system	148	149	$76
92134	Imaging of retina	157	172	$26
92136	Measurement of corneal curvature and depth of eye	288	680	$19

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Prednisolone Acetate	Prednisolone Acetate	585	23,487	$27,404
Restasis	Cyclosporine	19	1,080	$22,473
Moxifloxacin	Moxifloxacin Hcl	484	7,240	$13,005
Lumigan	Bimatoprost	20	525	$4,838
Diclofenac Sodium	Diclofenac Sodium	381	8,975	$4,452

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
V2020	Frames, purchases	N	20	20	$1,148

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	32	$2,676	Bausch & Lomb Americas 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 John Alexander Flatter, M.D.?

Tedicare shows public-source Medicare data for John Alexander Flatter, M.D. (NPI 1780071662), 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 John Alexander Flatter, M.D. have ACO affiliation data?

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

What billing organization is linked to John Alexander Flatter, M.D.?

John Alexander Flatter, M.D. is linked to EYE CLINIC OF WISCONSIN SC (billing NPI 1740263458) in the available physician profile data.

Does John Alexander Flatter, M.D. have Open Payments data?

John Alexander Flatter, M.D. has 32 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.