Medicare Enrolled

Dr. Robert Gwynn, MD

Interventional Cardiology · Berkeley, CA
Practice pattern: Mixed Practice — Diverse clinical practice across multiple procedure types
Low-engagement
132 SOUTHAMPTON AVE, Berkeley, CA 94707
5105242848
In practice since 2006 (19 years)
NPI: 1942236401 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. Gwynn 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 →
Are you Dr. Gwynn? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Gwynn

Dr. Robert Gwynn is an interventional cardiology specialist in Berkeley, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Gwynn performed 3,801 Medicare services across 2,594 unique beneficiaries.

Between the years covered by Open Payments, Dr. Gwynn received a total of $696 from 7 pharmaceutical and/or device companies across 15 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in interventional cardiology. 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. Gwynn 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 ▲ Top 31% volume in CA $696 industry payments

Medicare Practice Summary

Medicare Utilization ↗
3,801
Medicare services
Top 31% in CA for interventional cardiology
2,594
Unique beneficiaries
$8
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~200 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.
 3,485 $7 $28
Echocardiogram, transthoracic
An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function.
 128 $55 $770
Routine 12-lead electrocardiogram (ECG)
A test that records the electrical activity of the heart using at least 12 leads to produce a tracing.
 120 $4 $413
External EKG monitoring, 8-15 days
Continuous external electrocardiogram recording and review over a period of 8 to 15 days to monitor heart rhythm.
 26 $23 $88
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.
 16 $7 $48
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.
 13 $34 $728
Heart muscle strain imaging 13 $10 $147
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.
3.4% high complexity
1.1% medium
95.5% routine

Industry Payment Transparency

Open Payments through 2024 ↗
$696
Total received (2019-2024)
Avg $139/year across 5 years
Bottom 18% in CA for interventional cardiology
7
Companies
15
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
$551 (79.2%)
Scientific / Research
Research funding and grants
$145 (20.8%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$157
2023
$291
2021
$17
2020
$86
2019
$145

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Novartis Pharmaceuticals Corporation
$102
LANTHEUS MEDICAL IMAGING, INC.
$55
Top 3 companies account for 100.0% of 2024 payments
All-time payments by company (2019-2024) ›
Abbott Laboratories
$164
Boston Scientific Corporation
$162
Novartis Pharmaceuticals Corporation
$137
Edwards Lifesciences Corporation
$86
Lantheus Medical Imaging, Inc.
$75
LANTHEUS MEDICAL IMAGING, INC.
$55
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$17
Top 3 companies account for 66.5% of all-time payments
Associated products mentioned in payments ›
DEFINITY · Edwards SAPIEN 3 Transcatheter Heart Valve · GENERAL - STRUCTURAL HEART · LEQVIO · LUX-Dx Insertable Cardiac Monitor · LifeVest · MITRACLIP
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 (79%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.

Looking for an interventional cardiology specialist in Berkeley?
Compare interventional cardiologists in the Berkeley area by procedure volume, costs, and industry payment transparency.
Browse interventional cardiologists nearby

Geographic Context

Interventional cardiologists within 10 mi
49
Per 100K population
3.0
County median income
$126,240
Nearest hospital
ALTA BATES SUMMIT MEDICAL CENTER - ALTA BATES CAMP
3.2 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. Gwynn is a mixed practice 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. Gwynn experienced with ekg interpretation and report?
Based on Medicare claims data, Dr. Gwynn performed 3,485 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. Gwynn receive payments from pharmaceutical companies?
Yes. Dr. Gwynn received a total of $696 from 7 companies across 15 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. Gwynn's costs compare to other interventional cardiologists in Berkeley?
Dr. Gwynn's average Medicare payment per service is $8. 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. Gwynn) 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 →