Total Payments
$2.3M
2024 Payments
$199,532
Companies
65
Transactions
4,293
Medicare Patients
23,579
Medicare Billing
$7.1M
Payment Breakdown by Category
Other$1.9M (81.4%)
Travel$238,970 (10.4%)
Consulting$98,874 (4.3%)
Food & Beverage$88,961 (3.9%)
Education$108.16 (0.0%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | $1.9M | 715 | 80.9% |
| Travel and Lodging | $238,970 | 1,226 | 10.4% |
| Consulting Fee | $98,874 | 42 | 4.3% |
| Food and Beverage | $88,961 | 2,295 | 3.9% |
| Honoraria | $12,000 | 3 | 0.5% |
| Education | $108.16 | 12 | 0.0% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Esperion Therapeutics, Inc. | $355,569 | 409 | $0 (2024) |
| Amgen Inc. | $311,908 | 573 | $0 (2024) |
| AstraZeneca Pharmaceuticals LP | $247,897 | 325 | $0 (2024) |
| SANOFI-AVENTIS U.S. LLC | $244,875 | 332 | $0 (2024) |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $178,718 | 241 | $0 (2024) |
| Janssen Pharmaceuticals, Inc | $145,567 | 333 | $0 (2024) |
| E.R. Squibb & Sons, L.L.C. | $137,341 | 308 | $0 (2024) |
| Regeneron Healthcare Solutions, Inc. | $128,093 | 196 | $0 (2024) |
| Novartis Pharmaceuticals Corporation | $121,331 | 275 | $0 (2024) |
| Amarin Pharma Inc. | $103,856 | 210 | $0 (2023) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $199,532 | 417 | Esperion Therapeutics, Inc. ($50,449) |
| 2023 | $140,389 | 396 | E.R. Squibb & Sons, L.L.C. ($30,003) |
| 2022 | $283,273 | 486 | Esperion Therapeutics, Inc. ($107,092) |
| 2021 | $273,072 | 449 | Esperion Therapeutics, Inc. ($153,074) |
| 2020 | $233,187 | 415 | AstraZeneca Pharmaceuticals LP ($81,642) |
| 2019 | $435,390 | 717 | SANOFI-AVENTIS U.S. LLC ($110,246) |
| 2018 | $392,599 | 709 | Regeneron Healthcare Solutions, Inc. ($67,048) |
| 2017 | $336,452 | 704 | Amgen Inc. ($79,355) |
All Payment Transactions
4,293 individual payment records from CMS Open Payments — Page 1 of 172
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 12/27/2024 | Boston Scientific Corporation | WATCHMAN Access System (Device) | Travel and Lodging | Cash or cash equivalent | $120.15 | General |
| Category: WATCHMAN_IC | ||||||
| 12/20/2024 | Kiniksa Pharmaceuticals International, plc | Arcalyst (Drug) | Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | Cash or cash equivalent | $5,400.00 | General |
| Category: Rheumatology | ||||||
| 12/20/2024 | Kiniksa Pharmaceuticals International, plc | Arcalyst (Drug) | Travel and Lodging | Cash or cash equivalent | $140.05 | General |
| Category: Rheumatology | ||||||
| 12/19/2024 | Novo Nordisk Inc | Wegovy (Drug) | Food and Beverage | In-kind items and services | $24.02 | General |
| Category: Obesity | ||||||
| 12/18/2024 | Merck Sharp & Dohme LLC | VERQUVO (Drug), VERQUVO | Food and Beverage | In-kind items and services | $20.93 | General |
| Category: CARDIOVASCULAR | ||||||
| 12/18/2024 | PFIZER INC. | ELIQUIS (Drug), NURTEC ODT | Food and Beverage | In-kind items and services | $7.32 | General |
| Category: CARDIOVASCULAR;METABOLIC DISEASE | ||||||
| 12/13/2024 | Alnylam Pharmaceuticals Inc. | — | Food and Beverage | In-kind items and services | $31.41 | General |
| 12/12/2024 | Novo Nordisk Inc | Ozempic (Drug), Rybelsus | Food and Beverage | In-kind items and services | $7.42 | General |
| Category: Diabetes | ||||||
| 12/11/2024 | Novartis Pharmaceuticals Corporation | ENTRESTO (Drug), LEQVIO | Food and Beverage | In-kind items and services | $23.76 | General |
| Category: Cardiology/Vascular Diseases | ||||||
| 12/05/2024 | PFIZER INC. | ELIQUIS (Drug) | Food and Beverage | In-kind items and services | $132.00 | General |
| Category: CARDIOVASCULAR;METABOLIC DISEASE | ||||||
| 12/04/2024 | AstraZeneca Pharmaceuticals LP | FARXIGA (Drug) | Food and Beverage | In-kind items and services | $14.05 | General |
| Category: Cardiovascular and Metabolism | ||||||
| 12/02/2024 | Kiniksa Pharmaceuticals International, plc | Arcalyst (Drug) | Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | Cash or cash equivalent | $600.00 | General |
| Category: Rheumatology | ||||||
| 12/02/2024 | Novo Nordisk Inc | Ozempic (Drug), Rybelsus | Food and Beverage | In-kind items and services | $17.03 | General |
| Category: Diabetes | ||||||
| 11/26/2024 | Boston Scientific Corporation | WATCHMAN FLX (Device) | Food and Beverage | In-kind items and services | $26.38 | General |
| Category: WATCHMAN FLX_IC | ||||||
| 11/25/2024 | E.R. Squibb & Sons, L.L.C. | CAMZYOS (Drug) | Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | Cash or cash equivalent | $2,604.00 | General |
| Category: Cardiovascular | ||||||
| 11/25/2024 | Lilly USA, LLC | JARDIANCE (Drug) | Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | Cash or cash equivalent | $1,250.00 | General |
| Category: Diabetes | ||||||
| 11/20/2024 | Amgen Inc. | Repatha (Biological) | Food and Beverage | In-kind items and services | $13.58 | General |
| Category: Cardiology | ||||||
| 11/19/2024 | Regeneron Healthcare Solutions, Inc. | EVKEEZA (Biological) | Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | Cash or cash equivalent | $3,696.00 | General |
| Category: CARDIOVASCULAR AND METABOLISM | ||||||
| 11/19/2024 | PFIZER INC. | VYNDAQEL (Drug) | Food and Beverage | In-kind items and services | $22.87 | General |
| Category: CARDIOVASCULAR | ||||||
| 11/18/2024 | Amgen Inc. | Repatha (Biological) | Travel and Lodging | Cash or cash equivalent | $16.08 | General |
| Category: Cardiology | ||||||
| 11/18/2024 | Amgen Inc. | Repatha (Biological) | Travel and Lodging | Cash or cash equivalent | $5.00 | General |
| Category: Cardiology | ||||||
| 11/14/2024 | Regeneron Healthcare Solutions, Inc. | EVKEEZA (Biological) | Food and Beverage | In-kind items and services | $121.82 | General |
| Category: CARDIOVASCULAR AND METABOLISM | ||||||
| 11/13/2024 | Kiniksa Pharmaceuticals International, plc | Arcalyst (Drug) | Food and Beverage | In-kind items and services | $41.67 | General |
| Category: Rheumatology | ||||||
| 11/13/2024 | Novartis Pharmaceuticals Corporation | ENTRESTO (Drug), LEQVIO | Food and Beverage | In-kind items and services | $22.47 | General |
| Category: Cardiology/Vascular Diseases | ||||||
| 11/12/2024 | Amgen Inc. | Repatha (Biological) | Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | Cash or cash equivalent | $2,800.00 | General |
| Category: Cardiology | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 39 | 6,143 | 10,572 | $8.1M | $2.0M |
| 2022 | 39 | 5,801 | 9,673 | $7.4M | $1.8M |
| 2021 | 38 | 6,117 | 10,144 | $7.9M | $2.1M |
| 2020 | 37 | 5,518 | 9,106 | $5.5M | $1.3M |
Total Patients
23,579
Total Services
39,495
Medicare Billing
$7.1M
Procedure Codes
157
All Medicare Procedures & Services
157 procedure records from CMS Medicare Utilization — Page 1 of 7
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 78431 | Nuclear medicine studies of blood flow in heart muscle at rest and with stress with concurrent ct scan | Office | 2023 | 398 | 398 | $3.2M | $786,280 | 24.7% |
| A9555 | Rubidium rb-82, diagnostic, per study dose, up to 60 millicuries | Office | 2023 | 398 | 402 | $327,180 | $255,961 | 78.2% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2023 | 1,068 | 2,306 | $922,400 | $225,810 | 24.5% |
| 33285 | Insertion of heart rhythm monitor under skin | Office | 2023 | 35 | 35 | $556,500 | $126,000 | 22.6% |
| 93306 | Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Office | 2023 | 692 | 731 | $950,300 | $110,399 | 11.6% |
| 93880 | Ultrasound of both sides of head and neck blood flow | Office | 2023 | 606 | 608 | $395,200 | $93,893 | 23.8% |
| J2785 | Injection, regadenoson, 0.1 mg | Office | 2023 | 465 | 1,860 | $186,000 | $79,358 | 42.7% |
| 78452 | Nuclear medicine studies of heart muscle at rest and with stress and spect | Office | 2023 | 151 | 152 | $444,600 | $53,605 | 12.1% |
| 93015 | Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician | Office | 2023 | 549 | 551 | $190,145 | $30,857 | 16.2% |
| 93229 | Electrocardiogram (ecg) up to 30 days continuous with transmission of patient triggered events with review and report by health care professional | Office | 2023 | 38 | 38 | $83,600 | $26,202 | 31.3% |
| G2066 | Interrogation device evaluation(s), (remote) up to 30 days; implantable cardiovascular physiologic monitor system, implantable loop recorder system, or subcutaneous cardiac rhythm monitor system, remote data acquisition(s), receipt of transmissions and tec | Office | 2023 | 90 | 709 | $102,805 | $19,808 | 19.3% |
| 93298 | Evaluation of cardiac rhythm monitor system, remote up to 30 days | Office | 2023 | 91 | 710 | $88,750 | $14,139 | 15.9% |
| 93241 | Heart rhythm recording, analysis, report, review, and interpretation of continous external ekg over more than 48 hours up to 7 days | Office | 2023 | 62 | 64 | $57,600 | $13,662 | 23.7% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2023 | 109 | 109 | $57,225 | $12,495 | 21.8% |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Facility | 2023 | 97 | 170 | $24,650 | $11,079 | 44.9% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Office | 2023 | 68 | 76 | $42,940 | $10,591 | 24.7% |
| 93925 | Ultrasound of leg arteries or artery grafts | Office | 2023 | 52 | 52 | $36,760 | $10,289 | 28.0% |
| A9500 | Technetium tc-99m sestamibi, diagnostic, per study dose | Office | 2023 | 146 | 148 | $12,013 | $9,420 | 78.4% |
| 92928 | Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch | Facility | 2023 | 18 | 20 | $66,000 | $9,282 | 14.1% |
| 93458 | Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist | Facility | 2023 | 37 | 39 | $97,500 | $7,285 | 7.5% |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Facility | 2023 | 63 | 64 | $17,280 | $6,798 | 39.3% |
| 93970 | Ultrasound study of arm or leg veins with compression and maneuvers | Office | 2023 | 36 | 37 | $22,200 | $5,718 | 25.8% |
| 99443 | Telephone medical discussion with physician, 21-30 minutes | Office | 2023 | 49 | 55 | $27,500 | $5,705 | 20.7% |
| 95723 | Measurement of brain wave activity (eeg), 61-84 hours with health care professional review and report | Office | 2023 | 28 | 28 | $19,320 | $5,666 | 29.3% |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Facility | 2023 | 32 | 54 | $10,260 | $5,312 | 51.8% |
About Dr. John Isaac, M.D
Dr. John Isaac, M.D is a Interventional Cardiology healthcare provider based in Houston, Texas. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 04/17/2006. The National Provider Identifier (NPI) number assigned to this provider is 1295799005.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. John Isaac, M.D has received a total of $2.3M in payments from pharmaceutical and medical device companies, with $199,532 received in 2024. These payments were reported across 4,293 transactions from 65 companies. The most common payment nature is "Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program" ($1.9M).
As a Medicare-enrolled provider, Isaac has provided services to 23,579 Medicare beneficiaries, totaling 39,495 services with total Medicare billing of $7.1M. Data is available for 4 years (2020–2023), covering 157 distinct procedure/service records.
Ad
Practice Information
- Specialty Interventional Cardiology
- Other Specialties Cardiovascular Disease
- Location Houston, TX
- Active Since 04/17/2006
- Last Updated 10/25/2016
- Taxonomy Code 207RI0011X
- Entity Type Individual
- NPI Number 1295799005
Products in Payments
- NEXLIZET (Drug) $339,477
- Repatha (Biological) $311,123
- JARDIANCE (Drug) $246,884
- PRALUENT (Drug) $223,203
- XARELTO (Drug) $145,645
- BRILINTA (Drug) $133,167
- ENTRESTO (Drug) $120,364
- Vascepa (Drug) $103,856
- FARXIGA (Drug) $102,837
- ELIQUIS (Drug) $95,517
- PRALUENT ALIROCUMAB INJECTION (Biological) $91,212
- CAMZYOS (Drug) $73,699
- Arcalyst (Drug) $66,788
- CHANTIX (Drug) $34,042
- PRALUENT (Biological) $22,442
- NEXLETOL (Drug) $16,092
- EVKEEZA (Biological) $14,726
- ZONTIVITY (Drug) $14,681
- Optimizer (Device) $14,243
- Roszet (Drug) $13,751
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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