Medicare Enrolled
Isaac Guerrero
Family Medicine · Corpus Christi, TX
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
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 Guerrero 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 Guerrero
Isaac Guerrero is a family medicine specialist in Corpus Christi, TX, with 11 years of NPI registration. Based on federal Medicare data, Guerrero performed 3,551 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Guerrero received a total of $1,443 from 22 pharmaceutical and/or device companies across 86 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Guerrero 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.
✓ 11 years of NPI registration
▲ Top 6% volume in TX
$1,443 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗3,551
Medicare services
Top 6% in TX for family medicine
Not available
Unique patients (not deduplicated)
$25
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
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 |
|---|---|---|---|
| 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. |
579 | $80 | $289 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
510 | $8 | $21 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
453 | $8 | $27 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
443 | $10 | $37 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
226 | $9 | $34 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
215 | $13 | $46 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
199 | $16 | $59 |
| Urinalysis with microscopic exam A urine test performed manually that includes examining the sample under a microscope to check for abnormalities. |
150 | $3 | $12 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
109 | $9 | $32 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
77 | $13 | $47 |
| Urine culture, bacterial colony count A laboratory test that measures the number of bacteria growing in a urine sample to help identify infections. |
53 | $8 | $28 |
| 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. |
50 | $55 | $204 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
49 | $29 | $103 |
| Chest X-ray, 2 views An X-ray imaging test of the chest that captures two different angles to visualize the lungs, heart, and chest wall. |
48 | $25 | $116 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
44 | $15 | $53 |
| Urine microalbumin test (kidney screening) A laboratory test that measures the amount of microalbumin, a small protein, in a urine sample. This test is used to detect early signs of kidney damage. |
40 | $6 | $20 |
| Bacterial culture, aerobic A laboratory test that grows and identifies bacteria capable of surviving in oxygen. The results help determine the presence of specific aerobic microorganisms. |
38 | $8 | $28 |
| Antibiotic sensitivity test A laboratory test that determines which antibiotics, antifungals, or antivirals are effective against a specific microorganism using microdilution or agar dilution methods. |
38 | $8 | $30 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
37 | $8 | $29 |
| Hepatitis C antibody test A blood test that checks for antibodies to the hepatitis C virus. This test helps determine if a person has been exposed to the virus. |
29 | $14 | $49 |
| Nursing facility visit, moderate complexity A follow-up visit by a healthcare provider at a nursing facility for an established patient. The visit involves moderate medical decision making and takes at least 30 minutes. |
24 | $83 | $202 |
| PSA test (prostate cancer screening) A blood test that measures the level of prostate-specific antigen to screen for prostate cancer. |
23 | $19 | $67 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
21 | $126 | $295 |
| Transitional care management services, moderate complexity Services provided to coordinate care during the transition from an inpatient or other facility setting back to the community. This includes follow-up and management of a health problem of at least moderate complexity. |
15 | $159 | $463 |
| Hepatitis C antibody screening A blood test to check for antibodies indicating a Hepatitis C infection. This screening is performed for individuals at high risk or those with other covered indications. |
15 | $45 | $214 |
| Ultrasound of head and neck soft tissue This procedure uses sound waves to create images of the soft tissues in the head and neck area. It allows for the visualization of structures beneath the skin without using radiation. |
14 | $77 | $379 |
| Bone density scan (DEXA) A test that uses low-dose X-rays to measure bone mineral density in the hip, pelvis, and spine. It helps assess bone strength and risk of fractures. |
14 | $37 | $127 |
| Limited abdominal ultrasound A focused ultrasound examination of the abdomen to evaluate specific organs or areas. This procedure uses sound waves to create images of internal structures. |
13 | $67 | $306 |
| 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. |
13 | $10 | $54 |
| Magnesium level test A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess. |
12 | $7 | $23 |
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. These counts do not measure clinical quality or years of experience.
Industry Payment Transparency
Open Payments through 2021 ↗$1,443
Total received (2018-2021)
Avg $361/year across 4 years
Top 31% in TX for family medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
22
Companies
86
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2021
$259
2020
$484
2019
$312
2018
$388
Payments by company (2021)
Merck Sharp & Dohme Corporation
$53
Lilly USA, LLC
$46
PFIZER INC.
$45
Eisai Inc.
$40
Novo Nordisk Inc
$35
Takeda Pharmaceuticals U.S.A., Inc.
$25
Esperion Therapeutics, Inc.
$15
Top 3 companies account for 55.7% of 2021 payments
All-time payments by company (2018-2021) ›
AstraZeneca Pharmaceuticals LP
$369
Merck Sharp & Dohme Corporation
$201
Novo Nordisk Inc
$181
Lilly USA, LLC
$100
PFIZER INC.
$87
Novartis Pharmaceuticals Corporation
$76
Eisai Inc.
$57
Amarin Pharma Inc.
$43
MannKind Corporation
$37
Boston Scientific Corporation
$36
Allergan, Inc.
$33
SANOFI-AVENTIS U.S. LLC
$30
Allergan Inc.
$28
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$28
Amgen Inc.
$27
Takeda Pharmaceuticals U.S.A., Inc.
$25
Radius Health, Inc.
$16
Esperion Therapeutics, Inc.
$15
Genentech USA, Inc.
$15
Janssen Pharmaceuticals, Inc
$14
GlaxoSmithKline, LLC.
$14
Shire North American Group Inc
$12
Top 3 companies account for 52.0% of all-time payments
Associated products mentioned in payments ›
AFREZZA · Aimovig · BASAGLAR · BYSTOLIC · CHANTIX · Dayvigo · ELIQUIS · ENTRESTO · FARXIGA · GARDASIL 9 · GENERAL PAIN MANAGEMENT · GENERAL THERAPIES · JANUVIA · NEXLETOL · Ozempic · PNEUMOVAX 23 · SHINGRIX · SOLIQUA 100/33 · Saxenda · TOUJEO · TRINTELLIX · TRULANCE · TRULICITY · Tymlos · UBRELVY · VIIBRYD · VRAYLAR · VYVANSE · Vascepa · Victoza · XARELTO · XIFAXAN · Xofluza
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. 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 →
Geographic Context
Family medicine physicians in nearby ZIP areas
194
County median income
$66,021
Nearest hospital to ZIP centroid (approximate)
CORPUS CHRISTI MEDICAL CENTER,THE
3.0 mi
3.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2021 |
| Disciplinary History | — Not included | 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
Guerrero is a clinical cardiology specialist, with above-average Medicare volume (top 6% in TX).
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Guerrero experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Guerrero performed 579 office visit, established patient (30-39 min) services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Guerrero receive payments from pharmaceutical companies?
Yes. Guerrero received a total of $1,443 from 22 companies across 86 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Guerrero's costs compare to other family medicine physicians in Corpus Christi?
Guerrero's average Medicare payment per service is $25. 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 Guerrero) 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 the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. 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?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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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