Medicare Enrolled
Dr. Constantine Katsamakis, DO
Cardiovascular Disease · Mattoon, IL
Practice pattern: Cardiac Imaging
— Practice with significant diagnostic imaging and stress testing
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Katsamakis from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Katsamakis
Dr. Constantine Katsamakis is a cardiovascular disease specialist in Mattoon, IL, with 19 years of NPI registration. Based on federal Medicare data, Dr. Katsamakis performed 6,523 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Katsamakis received a total of $7,054 from 29 pharmaceutical and/or device companies across 300 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Katsamakis is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 19 years of NPI registration
▲ Top 10% volume in IL
$7,054 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗6,523
Medicare services
Top 10% in IL for cardiovascular disease
Not available
Unique patients (not deduplicated)
$37
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| EKG interpretation and report A standard electrocardiogram test that records the heart's electrical activity using at least 12 leads. The service includes a professional interpretation of the results and a written report. |
2,727 | $6 | $64 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
752 | $51 | $287 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
559 | $62 | $268 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
311 | $63 | $276 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
280 | $103 | $459 |
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
223 | $10 | $49 |
| Remote cardiac rhythm monitor evaluation, up to 30 days Review and analysis of data from a remote cardiac rhythm monitoring system over a period of up to 30 days. |
171 | $18 | $99 |
| Nuclear stress test of heart muscle A nuclear medicine imaging test that evaluates blood flow to the heart muscle at rest and during stress using a special camera. |
154 | $55 | $399 |
| Remote pacemaker monitoring, 90 days Remote assessment of a pacemaker system, including single, dual, multiple lead, or leadless devices, performed up to 90 days apart. |
124 | $19 | $133 |
| Cardiac catheterization | 114 | $199 | $1,289 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
111 | $90 | $432 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while an electrocardiogram is monitored under physician supervision. |
109 | $15 | $132 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram, with physician review of the results. |
109 | $10 | $171 |
| 2-day continuous ECG with professional review A two-day continuous electrocardiogram recording that includes a review by a healthcare professional. |
94 | $12 | $137 |
| Remote evaluation of implantable defibrillator system Remote assessment of a single, dual, or multiple lead implantable defibrillator system within 90 days of the previous evaluation. |
81 | $25 | $262 |
| Hospital follow-up visit, low complexity Follow-up hospital visit for an established patient with straightforward or low-level medical decision making. The visit requires at least 25 minutes of time spent on the day of service. |
67 | $40 | $181 |
| Initial hospital admission, low complexity Initial hospital inpatient or observation care for a new patient involving straightforward or low-level medical decision making, with at least 40 minutes total time on the date of the encounter. |
62 | $66 | $341 |
| Continuous ECG monitoring, up to 30 days Continuous heart rhythm monitoring for up to 30 days, including professional review and reporting of the results. |
61 | $18 | $137 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
59 | $40 | $174 |
| Follow-up heart ultrasound An ultrasound of the heart performed to monitor or reassess a previously identified condition or treatment progress. |
55 | $18 | $108 |
| Radiologist review of abdominal aorta and leg artery images A radiologist reviews images of the abdominal aorta and the arteries in both legs. This process involves analyzing the visual data to assess the condition of these blood vessels. |
31 | $73 | $360 |
| Intravascular ultrasound of heart vessel, initial An ultrasound procedure used to evaluate a blood vessel within the heart during a diagnostic or treatment procedure. |
31 | $58 | $360 |
| Pacemaker system evaluation Assessment of a pacemaker device, including single, dual, multiple lead, or leadless systems. |
30 | $13 | $77 |
| Continuous EKG monitoring review, 48-7 days Review and interpretation of continuous external EKG recordings lasting more than 48 hours up to 7 days. |
29 | $18 | $94 |
| Coronary stent placement A procedure to insert a stent into a coronary artery or its branch to keep it open, using balloon dilation during the process. |
27 | $475 | $2,415 |
| Radiologist review of arm or leg artery image A radiologist reviews images of the arteries in the arm or leg. This process involves analyzing the visual data to assess the blood vessels. |
26 | $66 | $295 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
25 | $53 | $258 |
| Implantable defibrillator system check A check of the implanted defibrillator device to ensure it is functioning correctly. This evaluation covers single, dual, or multiple lead systems. |
23 | $23 | $173 |
| Laser vein destruction with imaging guidance This procedure uses laser energy to destroy a faulty vein in the arm or leg. Imaging guidance is used to ensure accurate placement during the treatment. |
21 | $209 | $887 |
| Arterial plaque removal in leg A procedure to remove plaque buildup from the arteries in the leg to restore blood flow. |
18 | $440 | $3,001 |
| Insertion of tube in right and left heart chambers and coronary artery for diagnosis with review by radiologist | 14 | $238 | $1,610 |
| Ultrasound of heart blood vessel or graft An ultrasound exam to evaluate blood flow in a heart blood vessel or graft, including a radiologist's review of the initial vessel. |
13 | $76 | $358 |
| External shock to heart to regulate heart beat A procedure that delivers an electric shock to the heart from outside the body to restore a normal heart rhythm. |
12 | $78 | $520 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. These counts do not measure clinical quality or years of experience.
17.6% high complexity
7.5% medium
74.8% routine
Industry Payment Transparency
Open Payments through 2024 ↗$7,054
Total received (2018-2024)
Avg $1,008/year across 7 years
Top 30% in IL for cardiovascular disease
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
29
Companies
300
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$905
2023
$2,388
2022
$416
2021
$540
2020
$362
2019
$1,288
2018
$1,156
Payments by company (2024)
Penumbra, Inc.
$557
PFIZER INC.
$119
Abbott Laboratories
$68
Novartis Pharmaceuticals Corporation
$62
Medtronic, Inc.
$56
E.R. Squibb & Sons, L.L.C.
$22
Inari Medical, Inc.
$20
Top 3 companies account for 82.2% of 2024 payments
All-time payments by company (2018-2024) ›
Medtronic, Inc.
$2,163
Novartis Pharmaceuticals Corporation
$1,176
Janssen Pharmaceuticals, Inc
$953
Penumbra, Inc.
$557
E.R. Squibb & Sons, L.L.C.
$469
PFIZER INC.
$450
Amgen Inc.
$201
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$166
AstraZeneca Pharmaceuticals LP
$154
Boehringer Ingelheim Pharmaceuticals, Inc.
$118
Allergan Inc.
$106
Boston Scientific Corporation
$77
Abbott Laboratories
$68
Amarin Pharma Inc.
$53
Regeneron Healthcare Solutions, Inc.
$49
Lexicon Pharmaceuticals, Inc.
$37
Edwards Lifesciences Corporation
$37
Kowa Pharmaceuticals America, Inc.
$30
Becton, Dickinson and Company
$26
SANOFI-AVENTIS U.S. LLC
$21
Inari Medical, Inc.
$20
ShockWave Medical, Inc
$20
Medicure Pharma Inc.
$19
GE HEALTHCARE
$17
Merck Sharp & Dohme LLC
$15
Maquet Cardiovascular U.S. Sales, L.L.C.
$14
Dexcom, Inc.
$13
Lundbeck LLC
$13
Kiniksa Pharmaceuticals, Ltd.
$12
Top 3 companies account for 60.8% of all-time payments
Associated products mentioned in payments ›
ABRE · Atlas · BRILINTA · BYSTOLIC · BYVALSON · COREVALVE EVOLUT R · CS300 · Corlanor · Dexcom G6 Transmitter · ELIQUIS · ENTRESTO · Edwards SAPIEN 3 Transcatheter Heart Valve · FLOWTRIEVER CATHETER · HAWKONE · HawkOne · IN.PACT ADMIRAL · Indigo System · Inpefa · JARDIANCE · LEQVIO · LINQ II · LifeVest · Livalo · MITRACLIP · NORTHERA · PRADAXA · PRALUENT · PRALUENT ALIROCUMAB INJECTION · ReDS · Repatha · Reveal LINQ · S · SHOCKWAVE IVL SYSTEM WITH THE SHOCKWAVE C2 CORONARY IVL CATHETER · TURBOHAWK · VERQUVO · VYNDAQEL · Vascepa · WATCHMAN · WATCHMAN Access System · XARELTO
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Geographic Context
Cardiologists in nearby ZIP areas
1
County median income
$56,040
Nearest hospital to ZIP centroid (approximate)
SARAH BUSH LINCOLN HEALTH CENTER
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Katsamakis is a cardiac imaging specialist, with above-average Medicare volume (top 10% in IL), with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Katsamakis experienced with ekg interpretation and report?
Based on Medicare claims data, Dr. Katsamakis performed 2,727 ekg interpretation and report services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Katsamakis receive payments from pharmaceutical companies?
Yes. Dr. Katsamakis received a total of $7,054 from 29 companies across 300 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Katsamakis's costs compare to other cardiologists in Mattoon?
Dr. Katsamakis's average Medicare payment per service is $37. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Katsamakis) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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