Medicare Enrolled

Dr. Ernesto Guerra, MD

Gastroenterology · San Antonio, TX
Practice pattern: Clinical Cardiology— Primarily office-based clinical cardiology
Low-engagement
520 E EUCLID AVE, San Antonio, TX 78212
2102710606
In practice since 2005 (20 years)
NPI: 1558366435 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. Guerra 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. Guerra? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Guerra

Dr. Ernesto Guerra is a gastroenterology in San Antonio, TX, with 20 years in practice. Based on federal Medicare data, Dr. Guerra performed 1,061 Medicare services across 970 unique beneficiaries.

Between the years covered by Open Payments, Dr. Guerra received a total of $11,580 from 44 pharmaceutical and/or device companies across 704 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in gastroenterology. 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. Guerra 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.

✓ 20 years in practice▲ Top 22% volume in TX$ $11,580 industry payments

Medicare Practice Summary

Medicare Utilization ↗
1,061
Medicare services
Top 22% in TX for gastroenterology
970
Unique beneficiaries
$106
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~53 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.

ProcedureVolumeAvg. paidAvg. submitted
Office visit, established patient (30-39 min)326$84$217
Upper GI endoscopy with biopsy179$69$680
Colorectal cancer screening; colonoscopy on individual at high risk109$173$778
Colonoscopy with biopsy107$135$847
Office visit, established patient (20-29 min)106$58$148
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk62$174$781
Removal of polyps or growths of large bowel using an endoscope with mechanical snare41$202$1,067
Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm38$103$649
New patient office visit (45-59 min)37$109$332
Diagnostic exam of large bowel using a flexible endoscope29$132$781
New patient office visit (30-44 min)16$75$219
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope11$76$518
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.

Industry Payment Transparency

Open Payments through 2024 ↗
$11,580
Total received (2018-2024)
Avg $1,654/year across 7 years
Top 17% in TX for gastroenterology
44
Companies
704
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
$11,580 (100.0%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$1,542
2023
$1,494
2022
$1,483
2021
$1,661
2020
$1,254
2019
$2,028
2018
$2,119

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$1,804
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$1,618
AbbVie Inc.
$847
AbbVie, Inc.
$840
Janssen Biotech, Inc.
$833
Gilead Sciences, Inc.
$726
Allergan Inc.
$703
Olympus America Inc.
$702
Takeda Pharmaceuticals U.S.A., Inc.
$529
PFIZER INC.
$408
Shionogi Inc
$314
UCB, Inc.
$209
Intercept Pharmaceuticals, Inc.
$208
Synergy Pharmaceuticals Inc
$179
GI Supply, Inc.
$148
Braintree Laboratories, Inc.
$143
IRONWOOD PHARMACEUTICALS, INC
$113
Ironwood Pharmaceuticals, Inc
$100
EVOKE PHARMA, INC.
$94
RedHill Biopharma Inc.
$88
Smith+Nephew, Inc.
$81
Celgene Corporation
$79
Micro-tech Endoscopy USA, Inc.
$75
Lilly USA, LLC
$72
Nestle HealthCare Nutrition Inc.
$64
QOL Medical, LLC
$62
Allergan, Inc.
$59
Phathom Pharmaceuticals, Inc.
$54
NESTLE HEALTHCARE NUTRITION INC.
$42
Ferring Pharmaceuticals Inc.
$42
Romark Laboratories, LC
$41
Merck Sharp & Dohme LLC
$41
Alfasigma USA, Inc.
$36
CONMED Corporation
$34
Mauna Kea Technologies, Inc.
$33
Janssen Pharmaceuticals, Inc
$30
Merck Sharp & Dohme Corporation
$29
Daiichi Sankyo Inc.
$19
AIMMUNE THERAPEUTICS, INC.
$17
INTERCEPT PHARMACEUTICALS, INC.
$15
Alexion Pharmaceuticals, Inc.
$15
VIVUS LLC
$14
Ipsen Biopharmaceuticals, Inc
$14
Napo Pharmaceuticals Inc
$7
Top 3 companies account for 36.9% of total payments
Associated products mentioned in payments ›
ALINIA · APRISO · All Products · Amitiza · BYSTOLIC · CLENPIQ · CONMED Biliary · CREON · Cimzia · Creon · DIFICID · DISPOSABLE BIOPSY FORCEPS · DISPOSABLE EMR KIT · Dexilant · ENTYVIO · ESD · EVOS · Forcep · GATTEX · GIMOTI · HUMIRA · Hemostasis Clips · Humira · INJECTAFER · IQIRVO · Kanuma · LINZESS · Linzess · Locakdo Forceps · Lockado · MAVYRET · MOTEGRITY · Mavyret · Motegrity · Movantik · Mulpleta · Mytesi · OCALIVA · OMVOH · PANCREAZE · PLENVU · REBYOTA · RELISTOR · REMICADE · RINVOQ · SKYRIZI · STELARA · SUCRAID · SUPREP · SUPREP BOWEL PREP · SUTAB · Single Use Biliary Stent V · Sucraid · Symproic · TREMFYA · TRULANCE · Talicia · Trulance · UCERIS · UCERIS TABLETS · VIBERZI · VISIGLIDE · VOQUEZNA · WIDE-EYE Polyptrap · XELJANZ · XIFAXAN · XIFAXANIBSD · ZENPEP · ZEPOSIA · Zelnorm
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.

Equivalent to $1,091 per 100 Medicare services performed
Looking for a gastroenterology in San Antonio?
Compare gastroenterologys in the San Antonio area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Gastroenterologys within 10 mi
103
Per 100K population
5.1
County median income
$70,571
Nearest hospital
BAPTIST MEDICAL CENTER
2.8 mi

Data Sources

Provider Registry NPPESWeekly updates
Medicare Enrollment PECOSMonthly updates
Practice Data Medicare Util.Annual (CY lag)
Industry Payments Open PaymentsCY 2024
Disciplinary History— Not publicN/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. Guerra is a clinical cardiology specialist, with above-average Medicare volume (top 22% in TX), and high industry engagement (low-engagement, top 17%), with 20 years of practice experience.

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. Guerra experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Guerra performed 326 office visit, established patient (30-39 min) 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. Guerra receive payments from pharmaceutical companies?
Yes. Dr. Guerra received a total of $11,580 from 44 companies across 704 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. Guerra's costs compare to other gastroenterologys in San Antonio?
Dr. Guerra's average Medicare payment per service is $106. 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. Guerra) 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 →
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.

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 →