Total Payments
$44,690
2024 Payments
$347.27
Companies
30
Transactions
151
Medicare Patients
32,191
Medicare Billing
$4.3M
Payment Breakdown by Category
Consulting$40,000 (89.5%)
Food & Beverage$3,268 (7.3%)
Travel$1,422 (3.2%)
Other$0.00 (0.0%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Consulting Fee | $40,000 | 1 | 89.5% |
| Food and Beverage | $3,268 | 147 | 7.3% |
| Travel and Lodging | $1,422 | 3 | 3.2% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Semler Scientific, Inc. | $40,000 | 1 | $0 (2020) |
| Corindus Inc. | $1,852 | 7 | $0 (2018) |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | $709.15 | 41 | $0 (2024) |
| Novartis Pharmaceuticals Corporation | $369.91 | 15 | $0 (2024) |
| AstraZeneca Pharmaceuticals LP | $250.72 | 17 | $0 (2023) |
| Boston Scientific Corporation | $234.15 | 10 | $0 (2024) |
| Abbott Laboratories | $222.90 | 8 | $0 (2023) |
| Medtronic Vascular, Inc. | $197.14 | 4 | $0 (2019) |
| E.R. Squibb & Sons, L.L.C. | $174.00 | 5 | $0 (2024) |
| Janssen Pharmaceuticals, Inc | $102.06 | 6 | $0 (2020) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $347.27 | 16 | ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) ($102.33) |
| 2023 | $359.71 | 18 | ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) ($73.72) |
| 2022 | $274.99 | 14 | ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) ($157.95) |
| 2021 | $294.32 | 17 | ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) ($168.59) |
| 2020 | $40,319 | 20 | Semler Scientific, Inc. ($40,000) |
| 2019 | $239.37 | 15 | AstraZeneca Pharmaceuticals LP ($65.01) |
| 2018 | $1,100 | 29 | Corindus Inc. ($526.40) |
| 2017 | $1,756 | 22 | Corindus Inc. ($1,326) |
All Payment Transactions
151 individual payment records from CMS Open Payments — Page 1 of 7
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 12/10/2024 | Vital Connect, Inc | VITALPATCH RTM (Device) | Food and Beverage | In-kind items and services | $30.13 | General |
| Category: CARDIOLOGY | ||||||
| 12/03/2024 | Boston Scientific Corporation | LUX-Dx Insertable Cardiac Monitor (Device) | Food and Beverage | In-kind items and services | $16.00 | General |
| Category: LUX-Dx_CRM | ||||||
| 11/21/2024 | ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | LifeVest (Device) | Food and Beverage | Cash or cash equivalent | $27.20 | General |
| Category: Electromedical and Electrotherapeutic Apparatus | ||||||
| 10/31/2024 | Novartis Pharmaceuticals Corporation | LEQVIO (Drug), ENTRESTO | Food and Beverage | In-kind items and services | $23.36 | General |
| Category: Cardiology/Vascular Diseases | ||||||
| 10/29/2024 | E.R. Squibb & Sons, L.L.C. | CAMZYOS (Drug) | Food and Beverage | Cash or cash equivalent | $19.00 | General |
| Category: Cardiovascular | ||||||
| 09/10/2024 | ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | LifeVest (Device) | Food and Beverage | Cash or cash equivalent | $18.40 | General |
| Category: Electromedical and Electrotherapeutic Apparatus | ||||||
| 08/19/2024 | Inari Medical, Inc. | CT THROMBECTOMY SYSTEM KIT (Device), FLOWTRIEVER CATHETER, S | Food and Beverage | In-kind items and services | $22.98 | General |
| Category: VTE | ||||||
| 07/02/2024 | Novartis Pharmaceuticals Corporation | ENTRESTO (Drug), LEQVIO | Food and Beverage | In-kind items and services | $17.21 | General |
| Category: Cardiology/Vascular Diseases | ||||||
| 06/20/2024 | ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | LifeVest (Device) | Food and Beverage | Cash or cash equivalent | $10.97 | General |
| Category: Electromedical and Electrotherapeutic Apparatus | ||||||
| 05/15/2024 | ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | LifeVest (Device) | Food and Beverage | Cash or cash equivalent | $29.53 | General |
| Category: Electromedical and Electrotherapeutic Apparatus | ||||||
| 05/13/2024 | Novartis Pharmaceuticals Corporation | LEQVIO (Drug), ENTRESTO | Food and Beverage | In-kind items and services | $21.75 | General |
| Category: Cardiology/Vascular Diseases | ||||||
| 05/02/2024 | Chiesi USA, Inc. | CLEVIPREX (Drug) | Food and Beverage | Cash or cash equivalent | $21.91 | General |
| Category: CARDIOVASCULAR | ||||||
| 03/18/2024 | CVRx, Inc. | Barostim Neo System (Device) | Food and Beverage | Cash or cash equivalent | $22.33 | General |
| Category: Heart Failure and Hypertension | ||||||
| 02/13/2024 | Philips North America LLC | (CK4) MCOT (Device) | Food and Beverage | Cash or cash equivalent | $32.27 | General |
| Category: Medical Device | ||||||
| 02/06/2024 | Novartis Pharmaceuticals Corporation | LEQVIO (Drug), ENTRESTO | Food and Beverage | In-kind items and services | $18.00 | General |
| Category: Cardiology/Vascular Diseases | ||||||
| 01/31/2024 | ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | LifeVest (Device) | Food and Beverage | Cash or cash equivalent | $16.23 | General |
| Category: Electromedical and Electrotherapeutic Apparatus | ||||||
| 12/12/2023 | CVRx, Inc. | Barostim Neo System (Device) | Food and Beverage | Cash or cash equivalent | $24.34 | General |
| Category: Heart Failure and Hypertension | ||||||
| 11/21/2023 | Philips Electronics North America Corporation | (5091) Amb Mon & Diag Und (Device) | Food and Beverage | Cash or cash equivalent | $32.79 | General |
| Category: Medical Device | ||||||
| 11/08/2023 | ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | LifeVest (Device) | Food and Beverage | Cash or cash equivalent | $23.36 | General |
| Category: Electromedical and Electrotherapeutic Apparatus | ||||||
| 11/08/2023 | AstraZeneca Pharmaceuticals LP | FARXIGA (Drug) | Food and Beverage | In-kind items and services | $16.87 | General |
| Category: Cardiovascular and Metabolism | ||||||
| 10/24/2023 | Abbott Laboratories | THORATEC HEARTMATE 3 LVAS IMPLANT KIT (Device) | Food and Beverage | In-kind items and services | $24.77 | General |
| Category: Heart Failure | ||||||
| 10/17/2023 | PFIZER INC. | VYNDAQEL (Drug) | Food and Beverage | In-kind items and services | $15.67 | General |
| Category: CARDIOVASCULAR | ||||||
| 10/10/2023 | E.R. Squibb & Sons, L.L.C. | CAMZYOS (Drug) | Food and Beverage | Cash or cash equivalent | $19.49 | General |
| Category: Cardiovascular | ||||||
| 10/02/2023 | Esperion Therapeutics, Inc. | NEXLETOL (Drug) | Food and Beverage | In-kind items and services | $18.34 | General |
| Category: ANTILIPEMIC AGENTS | ||||||
| 09/27/2023 | ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | LifeVest (Device) | Food and Beverage | Cash or cash equivalent | $13.91 | General |
| Category: Electromedical and Electrotherapeutic Apparatus | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 45 | 8,480 | 19,887 | $5.3M | $1.1M |
| 2022 | 48 | 8,045 | 20,102 | $5.2M | $1.1M |
| 2021 | 49 | 8,233 | 14,998 | $4.9M | $1.1M |
| 2020 | 41 | 7,433 | 10,531 | $5.1M | $980,408 |
Total Patients
32,191
Total Services
65,518
Medicare Billing
$4.3M
Procedure Codes
195
All Medicare Procedures & Services
195 procedure records from CMS Medicare Utilization — Page 1 of 8
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2023 | 1,019 | 2,052 | $422,220 | $180,041 | 42.6% |
| 93306 | Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Office | 2023 | 1,094 | 1,147 | $1.6M | $154,068 | 9.6% |
| 78452 | Nuclear medicine studies of heart muscle at rest and with stress and spect | Office | 2023 | 348 | 351 | $716,040 | $107,268 | 15.0% |
| 99457 | Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | Office | 2023 | 344 | 2,866 | $286,600 | $99,046 | 34.6% |
| 99458 | Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes | Office | 2023 | 297 | 3,416 | $341,600 | $97,124 | 28.4% |
| 99454 | Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | Office | 2023 | 297 | 2,264 | $226,400 | $75,312 | 33.3% |
| A9502 | Technetium tc-99m tetrofosmin, diagnostic, per study dose | Office | 2023 | 349 | 704 | $211,200 | $63,423 | 30.0% |
| J2785 | Injection, regadenoson, 0.1 mg | Office | 2023 | 319 | 1,288 | $199,640 | $54,200 | 27.1% |
| 33285 | Insertion of heart rhythm monitor under skin | Office | 2023 | 11 | 11 | $77,000 | $33,653 | 43.7% |
| 93880 | Ultrasound of both sides of head and neck blood flow | Office | 2023 | 204 | 206 | $140,080 | $25,849 | 18.5% |
| 93015 | Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician | Office | 2023 | 353 | 357 | $196,350 | $16,104 | 8.2% |
| 92928 | Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch | Facility | 2023 | 32 | 37 | $102,400 | $15,129 | 14.8% |
| 93458 | Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist | Facility | 2023 | 75 | 76 | $191,500 | $14,049 | 7.3% |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Office | 2023 | 895 | 1,422 | $131,070 | $13,837 | 10.6% |
| 99490 | Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | Office | 2023 | 147 | 278 | $27,800 | $12,575 | 45.2% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2023 | 134 | 161 | $28,175 | $9,308 | 33.0% |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Facility | 2023 | 67 | 70 | $24,780 | $8,796 | 35.5% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Facility | 2023 | 60 | 110 | $16,680 | $8,013 | 48.0% |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | Office | 2023 | 97 | 97 | $28,906 | $7,292 | 25.2% |
| 83880 | Natriuretic peptide (heart and blood vessel protein) level | Office | 2023 | 141 | 173 | $34,600 | $6,655 | 19.2% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2023 | 49 | 49 | $13,514 | $5,859 | 43.4% |
| 80053 | Blood test, comprehensive group of blood chemicals | Office | 2023 | 401 | 525 | $60,375 | $5,434 | 9.0% |
| 93306 | Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Facility | 2023 | 94 | 97 | $21,116 | $4,993 | 23.6% |
| 93975 | Complete ultrasound of abdomen and pelvis artery and vein blood flow | Office | 2023 | 24 | 25 | $23,750 | $4,641 | 19.5% |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Facility | 2023 | 49 | 75 | $8,779 | $4,517 | 51.5% |
About Dr. William Knopf, MD
Dr. William Knopf, MD is a Cardiovascular Disease healthcare provider based in Macon, Georgia. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 07/15/2005. The National Provider Identifier (NPI) number assigned to this provider is 1922007541.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. William Knopf, MD has received a total of $44,690 in payments from pharmaceutical and medical device companies, with $347.27 received in 2024. These payments were reported across 151 transactions from 30 companies. The most common payment nature is "Consulting Fee" ($40,000).
As a Medicare-enrolled provider, Knopf has provided services to 32,191 Medicare beneficiaries, totaling 65,518 services with total Medicare billing of $4.3M. Data is available for 4 years (2020–2023), covering 195 distinct procedure/service records.
Ad
Practice Information
- Specialty Cardiovascular Disease
- Other Specialties Interventional Cardiology, Cardiovascular Disease
- Location Macon, GA
- Active Since 07/15/2005
- Last Updated 03/17/2022
- Taxonomy Code 207RC0000X
- Entity Type Individual
- NPI Number 1922007541
Products in Payments
- LifeVest (Device) $709.15
- ENTRESTO (Drug) $267.73
- BRILINTA (Drug) $202.64
- Resolute (Device) $183.66
- ELIQUIS (Drug) $150.30
- LEQVIO (Drug) $102.18
- XARELTO (Drug) $102.06
- CardioMEMS HF System (Device) $99.55
- JETSTREAM (Device) $82.29
- Mitra Clip system (Device) $60.17
- FARXIGA (Drug) $48.08
- Barostim Neo System (Device) $46.67
- VYNDAQEL (Drug) $43.73
- Coronary Orbital Atherectomy System (Device) $40.52
- CAMZYOS (Drug) $38.49
- LUX-Dx Insertable Cardiac Monitor (Device) $33.51
- WATCHMAN Access System (Device) $33.40
- (5091) Amb Mon & Diag Und (Device) $32.79
- (CK4) MCOT (Device) $32.27
- VENASEAL (Device) $30.22
Explore
Data Sources
Provider data from NPPES. Payment data from CMS Open Payments. Medicare data from CMS Medicare Provider Utilization. All data is public and updated periodically.
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