Physician

William Travis Dierenfeldt, MD

According to 2025 Medicare claims, William Dierenfeldt, MD (NPI: 1477591634) practices gastroenterology in the Manhattan, KS market, with the plurality of this provider's patient population coming from Riley, KS. This provider's primary affiliated billing organization is COTTON-O'NEIL CLINIC REVOCABLE TRUST (NPI: 1811944457; TIN: 486341644) and primary practice location at 66502-3381. Dierenfeldt is affiliated with the Cotton-O'Neil ACO llc (ACO ID: A2506) and NPG Health Collaborative LLC (ACO ID: A3287), participating under the MSSP model.

Dierenfeldt's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 742 traditional Medicare patients, billed 1,272 HCPCS/CPT codes, and received $131,082 in Medicare payments. The top billing code was 45385 (Removal of polyps or growths of large bowel using an endoscope with mechanical snare). Part D data shows 767 prescription claims across 195 beneficiaries totaling $234,366 in drug costs, led by Budesonide Dr (Budesonide). 2022 DME data shows 26 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 has changed little. Concurrently, Part D prescription costs have moved up and down with repeated peaks and valleys, starting at $186,966 and ending at $234,366. 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	738	1,170	$146,010
2016	813	1,460	$167,060
2017	870	1,932	$167,168
2018	929	2,015	$173,849
2019	821	1,610	$155,474
2020	668	1,075	$131,633
2021	722	1,297	$149,993
2022	746	1,180	$146,552
2023	744	1,235	$141,595
2024	742	1,272	$131,082

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	126	520	$186,966
2016	146	691	$379,676
2017	163	815	$252,498
2018	164	745	$177,623
2019	160	753	$137,159
2020	168	982	$303,023
2021	155	916	$289,591
2022	178	920	$308,572
2023	197	880	$270,305
2024	195	767	$234,366

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	155	$9,524
2021	N/R	12	$869
2022	N/R	26	$1,311
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
45385	Removal of polyps or growths of large bowel using an endoscope with mechanical snare	270	270	$183
G0121	Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk	62	63	$165
G0105	Colorectal cancer screening; colonoscopy on individual at high risk	98	98	$165
45380	Biopsy of large bowel using a flexible endoscope	86	86	$87
43239	Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope	251	254	$57

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Budesonide Dr	Budesonide	21	638	$5,784
Movantik	Naloxegol Oxalate	11	308	$3,911
Pantoprazole Sodium	Pantoprazole Sodium	340	16,176	$2,305
Omeprazole	Omeprazole	140	6,622	$1,034
Azathioprine	Azathioprine	12	360	$672

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 William Travis Dierenfeldt, MD?

Tedicare shows public-source Medicare data for William Travis Dierenfeldt, MD (NPI 1477591634), 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 William Travis Dierenfeldt, MD have ACO affiliation data?

William Travis Dierenfeldt, MD is shown with ACO affiliation data for Cotton-O'Neil ACO llc (MSSP, ACO ID A2506) and NPG Health Collaborative LLC (MSSP, ACO ID A3287).

What billing organization is linked to William Travis Dierenfeldt, MD?

William Travis Dierenfeldt, MD is linked to COTTON-O'NEIL CLINIC REVOCABLE TRUST (billing NPI 1811944457) in the available physician profile data.

Does William Travis Dierenfeldt, 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.