Medicare Enrolled
Dr. Hiroshi Yamasaki, MD
Cardiovascular Disease · Roseville, MI
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Low-engagement
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. Yamasaki 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. Yamasaki
Dr. Hiroshi Yamasaki is a cardiovascular disease specialist in Roseville, MI, with 20 years of NPI registration. Based on federal Medicare data, Dr. Yamasaki performed 1,621 Medicare services across 1,061 unique beneficiaries.
Between the years covered by Open Payments, Dr. Yamasaki received a total of $13,905 from 44 pharmaceutical and/or device companies across 231 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in cardiovascular disease. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Yamasaki 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 in practice
▲ Top 39% volume in MI
$13,905 industry payments
Medicare Practice Summary
Medicare Utilization ↗1,621
Medicare services
Top 39% in MI for cardiovascular disease
1,061
Unique beneficiaries
$52
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~81 Medicare services per year of practice
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. |
420 | $6 | $15 |
| 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. |
334 | $69 | $126 |
| 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. |
318 | $62 | $100 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
134 | $107 | $183 |
| 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. |
94 | $99 | $196 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
62 | $50 | $149 |
| 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. |
53 | $20 | $51 |
| 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. |
31 | $42 | $88 |
| Pacemaker programming, dual lead system Adjustment and configuration of a dual-lead pacemaker device to ensure proper operation and settings. |
30 | $29 | $69 |
| 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. |
28 | $11 | $39 |
| New patient office visit, complex (60-74 min) | 20 | $128 | $238 |
| 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. |
17 | $79 | $186 |
| 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. |
16 | $20 | $62 |
| Ultrasound of head and neck blood flow, bilateral An ultrasound exam that uses sound waves to visualize and assess blood flow in the vessels of both the head and the neck. |
16 | $31 | $51 |
| Ultrasound of arm and leg arteries This procedure uses sound waves to create images of the blood vessels in the arms and legs. It allows healthcare providers to examine the structure and blood flow within these arteries. |
14 | $10 | $16 |
| 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. |
12 | $42 | $60 |
| Coronary angiography A procedure to insert a tube into a coronary artery to capture diagnostic images of the heart's blood vessels. |
11 | $153 | $447 |
| 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. |
11 | $80 | $171 |
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. A higher procedure volume generally indicates more experience with that procedure.
6.7% high complexity
2.9% medium
90.4% routine
Industry Payment Transparency
Open Payments through 2024 ↗$13,905
Total received (2018-2024)
Avg $1,986/year across 7 years
Top 19% in MI for cardiovascular disease
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
44
Companies
231
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$13,845 (99.6%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$32 (0.2%)
Scientific / Research
Research funding and grants
$27 (0.2%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,879
2023
$2,524
2022
$1,554
2021
$1,029
2020
$436
2019
$3,583
2018
$2,900
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
ShockWave Medical, Inc
$386
Abbott Laboratories
$328
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$243
E.R. Squibb & Sons, L.L.C.
$176
Boston Scientific Corporation
$139
CARDIVA MEDICAL, INC.
$121
Boehringer Ingelheim Pharmaceuticals, Inc.
$116
Recor Medical Inc
$110
Eisai Inc.
$88
PFIZER INC.
$41
ABIOMED
$31
Novo Nordisk Inc
$25
Kestra Medical Technology Services, Inc.
$25
Chiesi USA, Inc.
$25
Janssen Pharmaceuticals, Inc
$14
Amgen Inc.
$13
Top 3 companies account for 50.9% of 2024 payments
All-time payments by company (2018-2024) ›
Abbott Laboratories
$4,825
ABIOMED
$758
Boston Scientific Corporation
$737
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$706
Inari Medical, Inc.
$687
Medtronic Vascular, Inc.
$512
CARDIVA MEDICAL, INC.
$478
ShockWave Medical, Inc
$431
Penumbra, Inc.
$407
Boehringer Ingelheim Pharmaceuticals, Inc.
$349
Novartis Pharmaceuticals Corporation
$326
E.R. Squibb & Sons, L.L.C.
$285
BOSTON SCIENTIFIC CORPORATION
$280
BARD PERIPHERAL VASCULAR, INC.
$266
Cardiovascular Systems Inc.
$263
Teleflex LLC
$263
SANOFI-AVENTIS U.S. LLC
$217
Janssen Pharmaceuticals, Inc
$193
Edwards Lifesciences Corporation
$173
Corcym Inc
$166
CVRx, Inc.
$132
Terumo Medical Corporation
$121
Amgen Inc.
$118
AstraZeneca Pharmaceuticals LP
$112
W. L. Gore & Associates, Inc.
$112
Recor Medical Inc
$110
Philips Electronics North America Corporation
$108
Medtronic, Inc.
$108
Eisai Inc.
$107
Biosense Webster, Inc.
$104
PFIZER INC.
$79
Chiesi USA, Inc.
$61
Novo Nordisk Inc
$57
Preventice Services, LLC
$43
ASAHI INTECC USA, INC.
$32
Cook Medical LLC
$27
HeartFlow, Inc.
$25
Kestra Medical Technology Services, Inc.
$25
Avinger Inc.
$24
Siemens Medical Solutions USA, Inc.
$23
Lantheus Medical Imaging, Inc.
$20
Bayer HealthCare Pharmaceuticals Inc.
$12
EKOS Corporation
$12
Gilead Sciences, Inc.
$11
Top 3 companies account for 45.5% of all-time payments
Associated products mentioned in payments ›
ABSOLUTE PRO · ASAHI PTCA Guide Wire · Adempas · Asahi Confianza guide wire · Asahi Fielder coronary guide wire · Assure WCD · BRILINTA · Barostim Neo System · CAMZYOS · CARDIOFORM Septal Occluder · CARDIOMEMS · CARDIVA VASCADE 6/7F VCS · CARDIVA VASCADE MVP VVCS 6-12F · CARTO 3 · CHANTIX · CLEVIPREX · CT THROMBECTOMY SYSTEM KIT · CardioMEMS HF System · CoreValve Evolut · Corlanor · Coronary Orbital Atherectomy System · DEFINITY · Dragonfly OCT · EKOSONIC · ELIQUIS · ENTRESTO · Edwards SAPIEN 3 Transcatheter Heart Valve · EkoSonic · FLOWTRIEVER CATHETER · GENERAL THERAPIES · GENERAL STENTS · GUIDELINER · HawkOne · HeartMate 3 Left Ventricular Dev · Impella · Indigo System · JARDIANCE · KENGREAL · LUX-Dx Insertable Cardiac Monitor · Lenvima · LifeVest · MULTAQ · MetaCross · ONYX FRONTIER · OPTIS · Optis Coronary Imaging System · Ozempic · PARADISE RENAL DENERVATION SYSTEM · PERCEVAL · PRALUENT · PRESSUREWIRE · Perclose ProGlide suture mediated closure system · Peripheral Orbital Atherectomy System · PressureWire FFR · RESONATE · Repatha · Resolute · S · SHOCKWAVE IVL SYSTEM WITH THE SHOCKWAVE C2 CORONARY IVL CATHETER · Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter · THORATEC HEARTMATE 3 LVAS IMPLANT KIT · Trilogy 100 · WATCHMAN · WATCHMAN Access System · WATCHMAN FLX · Wegovy · XARELTO · Xience Alpine cornary stent system · Xience Sierra Coronary Stent · Xience Sierra Coronary Stent System · Xience V coronary stent system · Xience cornary stent systems · c.cam Imaging System
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. 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 →
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Cardiologists within 10 mi
296
Per 100K population
33.7
County median income
$76,399
Nearest hospital
Henry Ford Health Warren Hospital
4.1 mi
4.1 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | 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. Yamasaki is a clinical cardiology specialist, with moderate Medicare volume, with low-engagement industry engagement in the top 19% of MI peers, 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. Yamasaki experienced with ekg interpretation and report?
Based on Medicare claims data, Dr. Yamasaki performed 420 ekg interpretation and report services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Yamasaki receive payments from pharmaceutical companies?
Yes. Dr. Yamasaki received a total of $13,905 from 44 companies across 231 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. 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. Yamasaki's costs compare to other cardiologists in Roseville?
Dr. Yamasaki's average Medicare payment per service is $52. 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. Yamasaki) 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 a long track record of practice, Medicare participation, and industry disclosure. 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?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): 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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