Medicare Enrolled

Dr. Kevin Marks, MD

Gastroenterology · Katy, TX
Practice pattern: Clinical Cardiology— Primarily office-based clinical cardiology
Low-engagement
521 W GRAND PKWY S, Katy, TX 77494
2813920425
In practice since 2006 (19 years)
NPI: 1679585228 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. Marks 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. Marks? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Marks

Dr. Kevin Marks is a gastroenterology in Katy, TX, with 19 years in practice. Based on federal Medicare data, Dr. Marks performed 420 Medicare services across 317 unique beneficiaries.

Between the years covered by Open Payments, Dr. Marks received a total of $7,628 from 46 pharmaceutical and/or device companies across 440 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. Marks 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▲ 420 Medicare services$ $7,628 industry payments

Medicare Practice Summary

Medicare Utilization ↗
420
Medicare services
Bottom 32% in TX for gastroenterology
Lower Medicare volume may reflect subspecialty focus, hospital-based work, or a higher share of non-Medicare patients.
317
Unique beneficiaries
$85
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~22 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)211$82$373
Office visit, established patient (20-29 min)74$60$262
New patient office visit (45-59 min)37$75$486
Colonoscopy with biopsy34$162$578
New patient office visit (30-44 min)26$57$326
Upper GI endoscopy with biopsy23$60$430
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk15$186$533
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 ↗
$7,628
Total received (2018-2024)
Avg $1,090/year across 7 years
Top 27% in TX for gastroenterology
46
Companies
440
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
$7,415 (97.2%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$190 (2.5%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$22 (0.3%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$1,473
2023
$1,087
2022
$823
2021
$320
2020
$630
2019
$1,561
2018
$1,733

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$991
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$987
Janssen Biotech, Inc.
$804
Takeda Pharmaceuticals U.S.A., Inc.
$722
Allergan Inc.
$390
Romark Laboratories, LC
$374
AbbVie, Inc.
$335
Olympus America Inc.
$280
Braintree Laboratories, Inc.
$260
Synergy Pharmaceuticals Inc
$248
PFIZER INC.
$235
AbbVie Inc.
$206
Edwards Lifesciences Corporation
$156
Ironwood Pharmaceuticals, Inc
$132
Celltrion USA Inc.
$130
Novo Nordisk Inc
$114
Gilead Sciences, Inc.
$97
Celgene Corporation
$96
Merck Sharp & Dohme Corporation
$86
Ardelyx, Inc.
$85
Merck Sharp & Dohme LLC
$79
Intercept Pharmaceuticals, Inc.
$66
Regeneron Healthcare Solutions, Inc.
$65
Allergan, Inc.
$56
Lilly USA, LLC
$54
UCB, Inc.
$51
Shionogi Inc
$51
IRONWOOD PHARMACEUTICALS, INC
$49
Horizon Pharma plc
$42
Cumberland Pharmaceuticals, Inc.
$42
RedHill Biopharma Inc.
$35
QOL Medical, LLC
$32
Medtronic, Inc.
$30
Aspire Bariatrics, Inc.
$29
Phathom Pharmaceuticals, Inc.
$25
Prometheus Laboratories Inc.
$24
GENZYME CORPORATION
$24
Apollo Endosurgery US Inc
$22
Horizon Therapeutics plc
$21
Daiichi Sankyo Inc.
$20
Ethicon US, LLC
$19
Ferring Pharmaceuticals Inc.
$19
AstraZeneca Pharmaceuticals LP
$13
Boston Scientific Corporation
$13
AMAG Pharmaceuticals, Inc.
$13
Napo Pharmaceuticals Inc
$5
Top 3 companies account for 36.5% of total payments
Associated products mentioned in payments ›
ALINIA · APRISO · Alinia · Alinia Tablets 500mg 30 count bottle · Amitiza · AspireAsssist · CLENPIQ · CRE PRO · CREON · CYCLOSET · Cimzia · Creon · DIFICID · DUPIXENT · ENTYVIO · Entyvio · FERAHEME · HUMIRA · Humira · IBSRELA · INFLECTRA · INTERSTIM · LINX Reflux Management System · LINZESS · Linzess · MAVYRET · MOTEGRITY · MOTOFEN · MOVANTIK · Mavyret · Motegrity · Movantik · Mytesi · OCALIVA · OMVOH · Olympus Biliary Devices · Olympus EMR & ESD Devices · Olympus EndoTherapy Accessories · Olympus Foreign Body Retrieval Devices · Olympus GI Accessories · Omeclamox · Omeclamox-Pak · Overstitch · RAYOS · RELISTOR · RELISTOR ORAL · REMICADE · RINVOQ · SKYRIZI · STELARA · SUPREP BOWEL PREP · SUTAB · Saxenda · Sucraid · Symproic · TREMFYA · TRULANCE · Talicia · Trulance · UCERIS · VEGZELMA · VELSIPITY · VIBERZI · VOQUEZNA · Wegovy · XELJANZ · XIFAXAN · XIFAXANIBSD · XIFIXAN · YUFLYMA · ZENPEP · ZEPOSIA · ZYMFENTRA
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 (97%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.

Equivalent to $1,816 per 100 Medicare services performed
Looking for a gastroenterology in Katy?
Compare gastroenterologys in the Katy area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Gastroenterologys within 10 mi
203
Per 100K population
23.6
County median income
$113,409
Nearest hospital
MEMORIAL HERMANN KATY HOSPITAL
0.0 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. Marks is a clinical cardiology specialist, with moderate Medicare volume, and low-engagement industry engagement, with 19 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. Marks experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Marks performed 211 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. Marks receive payments from pharmaceutical companies?
Yes. Dr. Marks received a total of $7,628 from 46 companies across 440 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. Marks's costs compare to other gastroenterologys in Katy?
Dr. Marks's average Medicare payment per service is $85. 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. Marks) 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 →