Medicare Enrolled

Dr. Kenneth Marvin, MD

Cardiovascular Disease · Grass Valley, CA
Practice pattern: Cardiac & Cardiac — Practice combining cardiac and cardiac services
Low-engagement
155 GLASSON WAY, Grass Valley, CA 95945
5302746000
In practice since 2006 (19 years)
NPI: 1417035221 verify on NPPES ↗
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. Marvin 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. Marvin

Dr. Kenneth Marvin is a cardiovascular disease specialist in Grass Valley, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Marvin performed 384 Medicare services across 370 unique beneficiaries.

Between the years covered by Open Payments, Dr. Marvin received a total of $433 from 12 pharmaceutical and/or device companies across 22 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. Marvin 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 in practice ▲ 384 Medicare services $433 industry payments

Medicare Practice Summary

Medicare Utilization ↗
384
Medicare services
Bottom 17% in CA for cardiovascular disease
Lower Medicare volume may reflect subspecialty focus, hospital-based work, or a higher share of non-Medicare patients.
370
Unique beneficiaries
$53
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~20 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
Echocardiogram, transthoracic
An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function.
 181 $50 $300
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.
 59 $54 $1,446
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.
 58 $10 $60
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.
 55 $98 $557
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.
 31 $61 $297
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.
47.1% high complexity
30.5% medium
22.4% routine

Industry Payment Transparency

Open Payments through 2022 ↗
$433
Total received (2018-2022)
Avg $87/year across 5 years
Bottom 23% in CA for cardiovascular disease
12
Companies
22
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
$433 (100.0%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2022
$27
2021
$20
2020
$157
2019
$211
2018
$16

Payments by company (2022)

Consulting
Speaking
Meals & Travel
Research
Bardy Diagnostics, Inc.
$27
Top 3 companies account for 100.0% of 2022 payments
All-time payments by company (2018-2022) ›
Amgen Inc.
$77
Janssen Pharmaceuticals, Inc
$66
Amarin Pharma Inc.
$62
Bardy Diagnostics, Inc.
$48
Boehringer Ingelheim Pharmaceuticals, Inc.
$31
Boston Scientific Corporation
$31
SANOFI-AVENTIS U.S. LLC
$29
Philips Electronics North America Corporation
$23
AstraZeneca Pharmaceuticals LP
$23
Abbott Laboratories
$16
Kowa Pharmaceuticals America, Inc.
$14
Regeneron Healthcare Solutions, Inc.
$12
Top 3 companies account for 47.4% of all-time payments
Associated products mentioned in payments ›
(7999) SRC Undivided · Carnation Ambulatory Monitor · Corlanor · LOKELMA · Livalo · PRADAXA · PRALUENT · Quadra Allure MP RF CRT Pacemkr · Repatha · Vascepa · WATCHMAN · XARELTO
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.

Looking for a cardiovascular disease specialist in Grass Valley?
Compare cardiologists in the Grass Valley area by procedure volume, costs, and industry payment transparency.
Browse cardiologists nearby

Geographic Context

Cardiologists within 10 mi
13
Per 100K population
12.7
County median income
$84,905
Nearest hospital
SIERRA NEVADA MEMORIAL HOSPITAL
0.0 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 2022
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. Marvin is a cardiac & cardiac specialist, with moderate Medicare volume, with low-engagement industry engagement, 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. Marvin experienced with echocardiogram, transthoracic?
Based on Medicare claims data, Dr. Marvin performed 181 echocardiogram, transthoracic 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. Marvin receive payments from pharmaceutical companies?
Yes. Dr. Marvin received a total of $433 from 12 companies across 22 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. Marvin's costs compare to other cardiologists in Grass Valley?
Dr. Marvin's average Medicare payment per service is $53. 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. Marvin) 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.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →