Medicare Enrolled
Dr. Gregory Buser, M.D.
Cardiovascular Disease · San Antonio, TX
Practice pattern: Electrophysiology & Remote
— Practice combining electrophysiology and remote services
Consulting-driven
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. Buser 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. Buser
Dr. Gregory Buser is a cardiovascular disease specialist in San Antonio, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Buser performed 3,494 Medicare services across 2,018 unique beneficiaries.
Between the years covered by Open Payments, Dr. Buser received a total of $2,840 from 19 pharmaceutical and/or device companies across 69 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in cardiovascular disease. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Buser is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 19 years in practice
▲ Top 29% volume in TX
$2,840 industry payments
Medicare Practice Summary
Medicare Utilization ↗3,494
Medicare services
Top 29% in TX for cardiovascular disease
2,018
Unique beneficiaries
$41
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~184 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 |
|---|---|---|---|
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
553 | $10 | $58 |
| 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. |
443 | $21 | $100 |
| Remote monitoring of implantable heart device, up to 30 days Remote evaluation of an implanted heart or blood vessel monitoring system over a period of up to 30 days. |
373 | $18 | $74 |
| 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. |
339 | $56 | $202 |
| 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. |
262 | $86 | $298 |
| Pacemaker programming, dual lead system Adjustment and configuration of a dual-lead pacemaker device to ensure proper operation and settings. |
246 | $25 | $121 |
| 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. |
215 | $19 | $81 |
| 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. |
213 | $57 | $202 |
| 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. |
115 | $126 | $562 |
| 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. |
81 | $9 | $77 |
| 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. |
79 | $88 | $289 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
70 | $123 | $735 |
| 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. |
64 | $36 | $109 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
54 | $8 | $9 |
| 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. |
48 | $27 | $181 |
| Programming of multiple lead implantable defibrillator system Adjustment and testing of the settings for an implanted heart device with multiple leads to ensure proper function. |
41 | $39 | $199 |
| Contrast injection for X-ray imaging Administration of a contrast agent into a vein in the arm or leg to enhance visibility during an X-ray imaging procedure. |
37 | $18 | $137 |
| Pacemaker system evaluation Assessment of a pacemaker device, including single, dual, multiple lead, or leadless systems. |
37 | $16 | $68 |
| Pacemaker insertion with heart chamber electrodes A surgical procedure to implant a pacemaker device and place electrodes into the upper and lower chambers of the heart to regulate heart rhythm. |
32 | $382 | $1,480 |
| Programming of dual lead implantable defibrillator system Adjustment and testing of the settings for an implanted heart device with two leads to ensure proper function. |
32 | $40 | $162 |
| Programming of single lead implantable defibrillator system Adjustment and testing of the settings for a single-lead implantable cardioverter-defibrillator (ICD) to ensure proper function. |
24 | $29 | $132 |
| Pacemaker system programming Adjustment and testing of a multi-lead pacemaker to ensure proper function and settings. |
22 | $36 | $147 |
| 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. |
22 | $93 | $456 |
| Pacemaker programming, single lead Adjustment and testing of a single-lead pacemaker to ensure it functions correctly. |
21 | $23 | $108 |
| Cardiac rhythm monitor evaluation Review and analysis of data recorded by a cardiac rhythm monitoring device to assess heart activity. |
20 | $14 | $70 |
| 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. |
17 | $75 | $299 |
| 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. |
12 | $15 | $68 |
| Insertion of implantable heart rhythm monitor A small device is placed under the skin to continuously record the heart's electrical activity. This helps detect irregular heart rhythms that may not appear during a standard office visit. |
11 | $60 | $256 |
| 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. |
11 | $11 | $45 |
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.
29.1% high complexity
1.7% medium
69.2% routine
Industry Payment Transparency
Open Payments through 2024 ↗$2,840
Total received (2018-2024)
Avg $406/year across 7 years
Bottom 38% in TX for cardiovascular disease
19
Companies
69
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.
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$1,425 (50.2%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$1,402 (49.4%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$12 (0.4%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$88
2023
$235
2022
$332
2021
$99
2020
$209
2019
$405
2018
$1,473
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Abbott Laboratories
$1,740
Medtronic Vascular, Inc.
$413
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$125
Janssen Pharmaceuticals, Inc
$121
Novartis Pharmaceuticals Corporation
$78
iRhythm Technologies, Inc.
$57
ABIOMED
$43
E.R. Squibb & Sons, L.L.C.
$40
Boston Scientific Corporation
$35
DePuy Synthes Sales Inc.
$33
ShockWave Medical, Inc
$27
BOSTON SCIENTIFIC CORPORATION
$24
BIOTRONIK INC.
$23
Medtronic, Inc.
$16
Merck Sharp & Dohme Corporation
$14
Boehringer Ingelheim Pharmaceuticals, Inc.
$14
SANOFI-AVENTIS U.S. LLC
$13
Regeneron Healthcare Solutions, Inc.
$12
Novo Nordisk Inc
$12
Top 3 companies account for 80.2% of total payments
Associated products mentioned in payments ›
ACCENT · ASSURITY · AVEIR · AZURE XT DR MRI SURESCAN · Advisa · Amplia MRI · Assurity Pacemaker · Azure · CARDIOMEMS · CareLink · CoreValve Evolut · ELIQUIS · EMBOGUARD · ENTRESTO · Ellipse ICD · Fortify Assura · ICDs · Impella · LEQVIO · LUX DX · LUX-Dx Insertable Cardiac Monitor · LifeVest · MULTAQ · Micra · PK Papyrus · PRADAXA · PRALUENT · Quadra Assura CRT Defibrillator · RESONATE · Rybelsus · Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter · TheraSphere Y90 Glass Microspheres 10 GBq · VERQUVO · Visia AF · XARELTO · Xience Sierra Coronary Stent System · ZIO XT Patch
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 →
The majority of payments (50%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers.
Equivalent to $81 per 100 Medicare services performed
Geographic Context
Cardiologists within 10 mi
162
Per 100K population
8.0
County median income
$70,571
Nearest hospital
BAPTIST NEIGHBORHOOD HOSPITAL THOUSAND OAKS
4.8 mi
4.8 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 measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Buser is an electrophysiology & remote specialist, with above-average Medicare volume (top 29% in TX), with consulting-driven industry engagement, with 19 years of NPI registration.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
Is Dr. Buser experienced with electrocardiogram (ekg), 12-lead?
Based on Medicare claims data, Dr. Buser performed 553 electrocardiogram (ekg), 12-lead 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. Buser receive payments from pharmaceutical companies?
Yes. Dr. Buser received a total of $2,840 from 19 companies across 69 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. Buser's costs compare to other cardiologists in San Antonio?
Dr. Buser's average Medicare payment per service is $41. 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. Buser) 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. The Transparency Score measures 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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