Physician

William Benjamin Workman, D.O.

According to 2025 Medicare claims, William Workman, D.O. (NPI: 1407110257) practices internal medicine in the Battle Creek, MI market, with the plurality of this provider's patient population coming from Calhoun, MI. This provider's primary affiliated billing organization is BRONSON METHODIST HOSPITAL (NPI: 1417961137; TIN: 381359087) and primary practice location at 49024-4828. Workman is affiliated with the Honest ACO of Michigan LLC (ACO ID: D0236), participating under the REACH model.

Workman's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 366 traditional Medicare patients, billed 1,246 HCPCS/CPT codes, and received $77,125 in Medicare payments. The top billing code was G0439 (Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit). Part D data shows 14,682 prescription claims across 1,000 beneficiaries totaling $1,737,869 in drug costs, led by Eliquis (Apixaban). DME data shows 529 claims. Open Payments data shows 32 records totaling $475. 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 $33,181 and ending at $77,125. Concurrently, Part D prescription costs have risen steadily, from $61,286 to $1,737,869. For DME billing, reported payments rose steadily, from $862 to $39,589.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	205	510	$33,181
2016	443	2,150	$114,935
2017	591	1,685	$58,261
2018	512	1,524	$51,246
2019	528	1,838	$103,047
2020	509	1,951	$110,631
2021	524	1,901	$126,694
2022	443	1,576	$51,454
2023	428	1,463	$45,588
2024	366	1,246	$77,125

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	239	947	$61,286
2016	660	6,058	$432,942
2017	883	13,147	$1,023,964
2018	738	12,916	$1,106,880
2019	673	12,775	$1,200,683
2020	733	14,382	$1,573,529
2021	1,008	15,456	$1,751,319
2022	906	16,212	$2,109,682
2023	948	15,883	$2,157,202
2024	1,000	14,682	$1,737,869

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	68	184	$5,099
2017	138	636	$28,682
2018	198	728	$24,404
2019	106	592	$17,676
2020	77	597	$32,025
2021	107	524	$37,631
2022	84	575	$43,388
2023	111	616	$39,185
2024	113	529	$41,918

* / # = 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
G0439	Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	223	223	$127
99215	Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	31	36	$104
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	443	567	$59
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	51	64	$36
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	131	149	$12

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Eliquis	Apixaban	172	11,295	$209,940
Ozempic	Semaglutide	102	5,362	$163,943
Mounjaro	Tirzepatide	93	3,024	$108,360
Trulicity	Dulaglutide	65	3,108	$101,455
Xarelto	Rivaroxaban	67	5,440	$95,540

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
A4239	Supply allowance for non-adjunctive, non-implanted continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service	N	11	38	$21,340
E1390	Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate	Y	N/R	64	$4,607
A7030	Full face mask used with positive airway pressure device, each	N	20	46	$3,683
A7031	Face mask interface, replacement for full face mask, each	N	19	45	$3,667
B4150	Enteral formula, nutritionally complete with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit	N	N/R	11	$2,015

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	32	$475	PFIZER 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 William Benjamin Workman, D.O.?

Tedicare shows public-source Medicare data for William Benjamin Workman, D.O. (NPI 1407110257), 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 Benjamin Workman, D.O. have ACO affiliation data?

William Benjamin Workman, D.O. is shown with ACO affiliation data for Honest ACO of Michigan LLC (REACH, ACO ID D0236).

What billing organization is linked to William Benjamin Workman, D.O.?

William Benjamin Workman, D.O. is linked to BRONSON METHODIST HOSPITAL (billing NPI 1417961137) in the available physician profile data.

Does William Benjamin Workman, D.O. have Open Payments data?

William Benjamin Workman, D.O. 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.