Medicare Enrolled
Dr. Issac Grinberg, MD
Cardiovascular Disease · Southfield, MI
Practice pattern: Cardiac & Cardiac
— Practice combining cardiac and cardiac services
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. Grinberg 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. Grinberg
Dr. Issac Grinberg is a cardiovascular disease specialist in Southfield, MI, with 20 years of NPI registration. Based on federal Medicare data, Dr. Grinberg performed 3,864 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Grinberg received a total of $18,056 from 34 pharmaceutical and/or device companies across 266 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. Grinberg 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.
✓ 20 years of NPI registration
▲ Top 14% volume in MI
$18,056 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗3,864
Medicare services
Top 14% in MI 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 |
|---|---|---|---|
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
1,414 | $51 | $155 |
| 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. |
388 | $6 | $15 |
| Echocardiogram with color Doppler An ultrasound of the heart that uses color imaging to visualize blood flow, measure flow rate, and assess valve function. |
341 | $2 | $165 |
| 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. |
290 | $68 | $127 |
| 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. |
276 | $48 | $88 |
| Follow-up heart ultrasound An ultrasound of the heart performed to monitor or reassess a previously identified condition or treatment progress. |
200 | $19 | $50 |
| Follow-up ultrasound of heart blood flow, valves and chambers An ultrasound exam that follows up on the heart's blood flow, valves, and chambers. It uses sound waves to create images of the heart's structure and function. |
199 | $6 | $101 |
| 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. |
154 | $16 | $41 |
| 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. |
154 | $11 | $30 |
| Echocardiogram, transthoracic An ultrasound test that uses sound waves to create images of the heart's blood flow, valves, and chambers. |
132 | $13 | $68 |
| Stress echocardiogram An ultrasound of the heart performed while at rest and during exercise or drug-induced stress to evaluate heart function under different conditions. |
131 | $49 | $175 |
| 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. |
78 | $98 | $171 |
| 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. |
35 | $66 | $100 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
24 | $98 | $135 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
20 | $144 | $263 |
| 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. |
17 | $101 | $180 |
| 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. |
11 | $70 | $105 |
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.
45.2% high complexity
25.4% medium
29.5% routine
Industry Payment Transparency
Open Payments through 2024 ↗$18,056
Total received (2018-2024)
Avg $2,579/year across 7 years
Top 15% in MI for cardiovascular disease
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
34
Companies
266
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
$1,165
2023
$1,651
2022
$827
2021
$1,321
2020
$834
2019
$1,863
2018
$10,394
Payments by company (2024)
Abbott Laboratories
$1,008
Novartis Pharmaceuticals Corporation
$105
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$38
AstraZeneca Pharmaceuticals LP
$14
Top 3 companies account for 98.8% of 2024 payments
All-time payments by company (2018-2024) ›
Medtronic Vascular, Inc.
$7,808
Abbott Laboratories
$5,046
Boston Scientific Corporation
$724
Novartis Pharmaceuticals Corporation
$664
E.R. Squibb & Sons, L.L.C.
$395
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$382
Medtronic, Inc.
$325
Janssen Pharmaceuticals, Inc
$284
Bayer HealthCare Pharmaceuticals Inc.
$250
Siemens Medical Solutions USA, Inc.
$202
BOSTON SCIENTIFIC CORPORATION
$180
Amgen Inc.
$169
Inari Medical, Inc.
$162
SANOFI-AVENTIS U.S. LLC
$153
HeartFlow, Inc.
$146
Kestra Medical Technology Services, Inc.
$142
PFIZER INC.
$132
Regeneron Healthcare Solutions, Inc.
$132
Boehringer Ingelheim Pharmaceuticals, Inc.
$125
CVRx, Inc.
$119
EKOS Corporation
$109
Edwards Lifesciences Corporation
$68
Astellas Pharma US Inc
$53
Gilead Sciences, Inc.
$51
Relypsa, Inc.
$33
Lundbeck LLC
$33
GENZYME CORPORATION
$31
Impulse Dynamics (USA) Inc.
$31
Actelion Pharmaceuticals US, Inc.
$29
Novo Nordisk Inc
$18
W. L. Gore & Associates, Inc.
$17
Teleflex LLC
$17
AstraZeneca Pharmaceuticals LP
$14
Kowa Pharmaceuticals America, Inc.
$11
Top 3 companies account for 75.2% of all-time payments
Associated products mentioned in payments ›
AMPLATZER · AMPLATZER AMULET · AMPLATZER Occluders · ASSURITY · AVEIR · Absolute Pro vascular stent system · Accent Pacemaker · Adempas · Artis Q · Artis pheno · Assure WCD · Assurity Pacemaker · Azure · BRILINTA · Barostim Neo System · CARDIOFORM Septal Occluder · CHANTIX · CardioMEMS HF System · Confirm Rx · CoreValve Evolut · Corlanor · EKOSONIC · ELIQUIS · ENSITE · ENSITE PRECISION · ENTRESTO · Edwards SAPIEN 3 Transcatheter Heart Valve · Ellipse ICD · Ensite Cardiac Mapping System · FABRAZYME · FABRY-DISEASE · FLOWTRIEVER CATHETER · Fortify Assura · GALLANT · GENERAL STENTS · GENERAL - STRUCTURAL HEART · GENERAL THERAPIES · HawkOne · IN.PACT Admiral · JARDIANCE · LEQVIO · LEXISCAN · LifeVest · Livalo · MANTA · MULTAQ · NORTHERA · No Associated Product · OPSUMIT · OPSUMIT MACITENTAN · OPTIMIZER · PERCLOSE PROGLIDE · PRALUENT · PRALUENT ALIROCUMAB INJECTION · Pacemakers · Perclose ProGlide suture mediated closure system · Repatha · Resolute · S · SENSOR ENABLED · TACTICATH ABLATION CATHETER · THORATEC HEARTMATE 3 LVAS IMPLANT KIT · TactiCath Quartz CFA Catheter · Unify Assura CRT Defibrillator · Veltassa · Victoza · 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
318
County median income
$95,296
Nearest hospital to ZIP centroid (approximate)
ASCENSION PROVIDENCE HOSPITAL, SOUTHFIELD AND NOVI
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. Grinberg is a cardiac & cardiac specialist, with above-average Medicare volume (top 14% in MI), with 20 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. Grinberg experienced with echocardiogram, transthoracic?
Based on Medicare claims data, Dr. Grinberg performed 1,414 echocardiogram, transthoracic 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. Grinberg receive payments from pharmaceutical companies?
Yes. Dr. Grinberg received a total of $18,056 from 34 companies across 266 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. Grinberg's costs compare to other cardiologists in Southfield?
Dr. Grinberg'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. Grinberg) 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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