Physician

William Carl Mercer, MD

According to 2025 Medicare claims, William Mercer, MD (NPI: 1780687558) practices family practice in the Wheeling, WV-OH market, with the plurality of this provider's patient population coming from Ohio, WV. This provider's primary affiliated billing organization is WHEELING HOSPITAL INC (NPI: 1548923923; TIN: 55-0357057) and primary practice location at 26003-1535. Mercer is affiliated with the ACO West Virginia (ACO ID: A3563), participating under the MSSP model.

Mercer's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 174 traditional Medicare patients, billed 895 HCPCS/CPT codes, and received $61,223 in Medicare payments. The top billing code was 99306 (Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more). Part D data shows 21,275 prescription claims across 316 beneficiaries totaling $1,671,412 in drug costs, led by Promacta (Eltrombopag Olamine). DME data shows 90 claims. Open Payments data shows 1 records totaling $125. 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 $190,885 to $61,223. Concurrently, Part D prescription costs did not follow a clear longitudinal pattern. In contrast, DME billing represents a smaller volume and started with an early spike, then settled into a lower baseline, moving from $31,921 to $8,386.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	567	3,821	$190,885
2016	558	4,201	$186,382
2017	498	4,390	$168,269
2018	453	2,909	$110,718
2019	547	2,648	$118,258
2020	403	1,076	$44,362
2021	274	670	$32,589
2022	197	991	$49,669
2023	122	595	$35,254
2024	174	895	$61,223

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	752	21,375	$1,145,951
2016	738	20,641	$1,111,471
2017	735	21,664	$1,104,446
2018	732	23,712	$1,101,243
2019	750	22,614	$1,185,449
2020	699	19,717	$1,085,933
2021	642	9,457	$571,719
2022	277	9,907	$638,747
2023	252	17,088	$1,097,819
2024	316	21,275	$1,671,412

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	47	377	$20,516
2016	47	358	$12,523
2017	47	324	$6,427
2018	40	190	$3,935
2019	28	155	$4,011
2020	36	172	$4,685
2021	14	90	$3,354
2022	N/R	40	$3,668
2023	N/R	82	$4,669
2024	54	90	$114,420

* / # = 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
99306	Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more	63	66	$137
99316	Nursing facility discharge management, more than 30 minutes	33	36	$99
99309	Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes	107	203	$77
99308	Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more	152	436	$55
99307	Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes	67	99	$29

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Promacta	Eltrombopag Olamine	22	359	$298,117
Eliquis	Apixaban	630	8,569	$180,732
Ingrezza	Valbenazine Tosylate	25	350	$101,628
Enbrel Sureclick	Etanercept	11	308	$85,133
Epidiolex	Cannabidiol (Cbd)	38	342	$59,051

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
A4353	Intermittent urinary catheter, with insertion supplies	N	54	54	$113,956
E2201	Manual wheelchair accessory, nonstandard seat frame, width greater than or equal to 20 inches and less than 24 inches	Y	N/R	12	$350
A5120	Skin barrier, wipes or swabs, each	N	N/R	12	$68
A4371	Ostomy skin barrier, powder, per oz	N	N/R	12	$47

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	1	$125	SANOFI-AVENTIS U.S. LLC
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 Carl Mercer, MD?

Tedicare shows public-source Medicare data for William Carl Mercer, MD (NPI 1780687558), 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 Carl Mercer, MD have ACO affiliation data?

William Carl Mercer, MD is shown with ACO affiliation data for ACO West Virginia (MSSP, ACO ID A3563).

What billing organization is linked to William Carl Mercer, MD?

William Carl Mercer, MD is linked to WHEELING HOSPITAL INC (billing NPI 1548923923) in the available physician profile data.

Does William Carl Mercer, MD have Open Payments data?

William Carl Mercer, MD 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.