Physician

Kara Willenburg, M.D.

According to 2025 Medicare claims, Kara Willenburg, M.D. (NPI: 1972705150) practices infectious disease in the Casper, WY market, with the plurality of this provider's patient population coming from Natrona, WY. This provider's primary affiliated billing organization is ROCKY MOUNTAIN INFECTIOUS DISEASES (NPI: 1497833180; TIN: 830326365) and primary practice location at 82601-2239. Willenburg is affiliated with the Collaborative ACO 30, LLC (ACO ID: A5483), participating under the MSSP model.

Willenburg's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 646 traditional Medicare patients, billed 183,502 HCPCS/CPT codes, and received $360,306 in Medicare payments. The top billing code was 99215 (Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more). Part D data shows 225 prescription claims across 110 beneficiaries totaling $105,353 in drug costs, led by Biktarvy (Bictegrav/Emtricit/Tenofov Ala). Open Payments data shows 1 records totaling $37. 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 up and down with repeated peaks and valleys, starting at $39,528 and ending at $360,306. Concurrently, Part D prescription costs have fallen sharply in recent years, from $380,657 to $105,353. 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	240	592	$39,528
2016	160	447	$28,356
2017	250	771	$49,486
2018	161	416	$29,004
2019	193	460	$32,278
2020	131	262	$19,844
2021	203	456	$36,653
2022	207	469	$35,163
2023	409	55,421	$133,242
2024	646	183,502	$360,306

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	62	547	$380,657
2016	61	528	$446,870
2017	98	983	$667,313
2018	68	578	$603,447
2019	75	740	$698,901
2020	71	773	$936,373
2021	71	708	$939,113
2022	79	694	$982,710
2023	88	443	$735,818
2024	110	225	$105,353

DME Billing Trend

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

No connected DME records

* / # = 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
99215	Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	222	309	$142
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	240	318	$102
99233	Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	166	440	$95
96365	Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less	135	583	$51
36415	Insertion of needle into vein for collection of blood sample	137	189	$9

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Biktarvy	Bictegrav/Emtricit/Tenofov Ala	17	510	$67,578
Cephalexin	Cephalexin	30	650	$769
Doxycycline Hyclate	Doxycycline Hyclate	29	708	$584
Fluconazole	Fluconazole	14	264	$363
Amoxicillin	Amoxicillin	16	571	$177

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.	1	$37	Boston Scientific Corporation
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 Kara Willenburg, M.D.?

Tedicare shows public-source Medicare data for Kara Willenburg, M.D. (NPI 1972705150), 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 Kara Willenburg, M.D. have ACO affiliation data?

Kara Willenburg, M.D. is shown with ACO affiliation data for Collaborative ACO 30, LLC (MSSP, ACO ID A5483).

What billing organization is linked to Kara Willenburg, M.D.?

Kara Willenburg, M.D. is linked to ROCKY MOUNTAIN INFECTIOUS DISEASES (billing NPI 1497833180) in the available physician profile data.

Does Kara Willenburg, M.D. have Open Payments data?

Kara Willenburg, M.D. has 1 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.