Physician

William Douglas Knopf, MD

According to 2025 Medicare claims, William Knopf, MD (NPI: 1922007541) practices cardiology in the Warner Robins, GA market, with the plurality of this provider's patient population coming from Houston, GA. This provider's primary affiliated billing organization is MIDDLE GEORGIA HEART AND VASCULAR CENTER, LLC (NPI: 1205113057; TIN: 452591774) and primary practice location at 31210-5778. Knopf is affiliated with the TC2, LLC (ACO ID: A3365), CHSPSC ACO 6, LLC (ACO ID: A3712), and Collaborative ACO 30, LLC (ACO ID: A5483), participating under the MSSP model.

Knopf's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 2,294 traditional Medicare patients, billed 20,942 HCPCS/CPT codes, and received $1,087,487 in Medicare payments. The top billing code was 78452 (Nuclear medicine studies of heart muscle at rest and with stress and spect). Part D data shows 13,207 prescription claims across 1,538 beneficiaries totaling $2,431,498 in drug costs, led by Eliquis (Apixaban). DME data shows 144 claims. Open Payments data shows 16 records totaling $347. 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 risen steadily, from $331,435 to $1,087,487. Similarly, Part D prescription costs have moved sharply higher in recent years, from $7,095 to $2,431,498. In contrast, DME billing represents a smaller volume and moved sharply higher in recent years, from $1,008 to $64,584.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	N/R	N/R	N/R
2016	1,168	8,077	$331,435
2017	858	4,027	$195,884
2018	1,875	8,864	$748,773
2019	1,739	8,848	$938,817
2020	2,289	10,734	$1,007,129
2021	1,974	15,145	$1,093,726
2022	1,821	20,349	$1,166,280
2023	1,989	20,132	$1,069,203
2024	2,294	20,942	$1,087,487

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	N/R	87	$7,095
2016	219	854	$29,337
2017	255	1,100	$46,131
2018	880	5,211	$427,656
2019	1,127	8,711	$718,864
2020	1,133	9,588	$1,022,910
2021	1,139	8,420	$1,133,157
2022	1,109	9,130	$1,335,982
2023	1,245	10,109	$1,653,501
2024	1,538	13,207	$2,431,498

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	12	$36
2021	N/R	22	$1,461
2022	N/R	32	$2,415
2023	N/R	39	$65,536
2024	131	144	$312,649

* / # = 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
78452	Nuclear medicine studies of heart muscle at rest and with stress and spect	402	403	$295
93306	Ultrasound of heart with color-depicted blood flow, rate, direction and valve function	1,175	1,239	$107
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	1,174	2,646	$86
93015	Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician	410	412	$45
93000	Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report	927	1,594	$9

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Eliquis	Apixaban	1,190	56,090	$1,076,119
Entresto	Sacubitril/Valsartan	584	25,292	$548,517
Brilinta	Ticagrelor	278	12,155	$177,959
Xarelto	Rivaroxaban	168	8,068	$148,553
Repatha Sureclick	Evolocumab	197	6,734	$130,027

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	118	118	$249,531
K0606	Automatic external defibrillator, with integrated electrocardiogram analysis, garment type	Y	13	26	$63,118

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	16	$347	ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
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 Douglas Knopf, MD?

Tedicare shows public-source Medicare data for William Douglas Knopf, MD (NPI 1922007541), 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 Douglas Knopf, MD have ACO affiliation data?

William Douglas Knopf, MD is shown with ACO affiliation data for TC2, LLC (MSSP, ACO ID A3365), CHSPSC ACO 6, LLC (MSSP, ACO ID A3712), and Collaborative ACO 30, LLC (MSSP, ACO ID A5483).

What billing organization is linked to William Douglas Knopf, MD?

William Douglas Knopf, MD is linked to MIDDLE GEORGIA HEART AND VASCULAR CENTER, LLC (billing NPI 1205113057) in the available physician profile data.

Does William Douglas Knopf, MD have Open Payments data?

William Douglas Knopf, MD has 16 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.