Physician

Thomas A Klinkhammer, MD

According to 2025 Medicare claims, Thomas Klinkhammer, MD (NPI: 1851479067) practices hematology/oncology in the Appleton, WI market, with the plurality of this provider's patient population coming from Outagamie, WI. This provider's primary affiliated billing organization is THEDACARE, INCORPORATED (NPI: 1376656959; TIN: 391509362) and primary practice location at 54911-8735. Klinkhammer is affiliated with the THEDACARE ACO (ACO ID: A4988), participating under the MSSP model.

Klinkhammer's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 199 traditional Medicare patients, billed 998 HCPCS/CPT codes, and received $134,111 in Medicare payments. The top billing code was 78815 (Nuclear medicine study from skull base to mid-thigh with ct scan). Part D data shows 409 prescription claims across 129 beneficiaries totaling $389,426 in drug costs, led by Eliquis (Apixaban). 2021 DME data shows 24 claims. No Open Payments records. 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 $794,650 to $134,111. Concurrently, Part D prescription costs have moved up and down with repeated peaks and valleys, starting at $879,539 and ending at $389,426. In contrast, DME billing represents a smaller volume and started with an early spike, then settled into a lower baseline, moving from $6,043 to $418.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	372	86,284	$794,650
2016	215	34,366	$304,863
2017	118	341	$20,064
2018	193	469	$36,880
2019	255	830	$66,413
2020	216	613	$38,400
2021	169	419	$37,660
2022	182	793	$43,537
2023	112	508	$28,207
2024	199	998	$134,111

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	161	916	$879,539
2016	121	688	$675,657
2017	68	315	$279,272
2018	99	420	$387,656
2019	172	764	$782,446
2020	155	680	$910,467
2021	144	614	$666,555
2022	138	543	$596,601
2023	105	394	$391,597
2024	129	409	$389,426

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	N/R	49	$3,801
2016	N/R	28	$1,332
2017	N/R	24	$689
2018	N/R	N/R	N/R
2019	N/R	N/R	N/R
2020	N/R	N/R	N/R
2021	N/R	24	$1,578
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
78815	Nuclear medicine study from skull base to mid-thigh with ct scan	27	27	$1,133
99215	Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	35	43	$132
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	98	186	$87
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	64	68	$55
G2211	Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	114	192	$12

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Eliquis	Apixaban	21	870	$16,516
Xarelto	Rivaroxaban	11	510	$9,141
Ondansetron Hcl	Ondansetron Hcl	42	822	$1,855
Tamoxifen Citrate	Tamoxifen Citrate	32	1,980	$883
Acyclovir	Acyclovir	13	660	$640

Top 5 DME services in 2024

No connected or detailed DME service-level records for 2024.

Open Payments Summary

No connected Open Payments records were found for this physician in General Payments, Research Payments, or Ownership / Investment Interests.

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FAQ

What Medicare data is available for Thomas A. Klinkhammer, MD?

Tedicare shows public-source Medicare data for Thomas A. Klinkhammer, MD (NPI 1851479067), 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 Thomas A. Klinkhammer, MD have ACO affiliation data?

Thomas A. Klinkhammer, MD is shown with ACO affiliation data for THEDACARE ACO (MSSP, ACO ID A4988).

What billing organization is linked to Thomas A. Klinkhammer, MD?

Thomas A. Klinkhammer, MD is linked to THEDACARE, INCORPORATED (billing NPI 1376656959) in the available physician profile data.

Does Thomas A. Klinkhammer, MD have Open Payments data?

No connected Open Payments records are shown for this physician in the available General Payments, Research Payments, or Ownership / Investment Interests 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.