Medicare Enrolled

Dr. Joseph Bresnahan, M.D.

Gastroenterology · Riverside, IL
Practice pattern: Clinical Cardiology — Primarily office-based clinical cardiology
3722 HARLEM AVE, Riverside, IL 60546
7087837000
Registered in NPPES since 2006
NPI: 1710925532 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. Bresnahan 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. Bresnahan

Dr. Joseph Bresnahan is a gastroenterology specialist in Riverside, IL, with 20 years of NPI registration. Based on federal Medicare data, Dr. Bresnahan performed 612 Medicare services in 2023. These records do not provide a deduplicated patient total.

Between the years covered by Open Payments, Dr. Bresnahan received a total of $4,125 from 19 pharmaceutical and/or device companies across 148 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 Dr. Bresnahan 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.

✓ 20 years of NPI registration ▲ Top 50% volume in IL $4,125 industry payments

Medicare Practice Summary — 2023

Medicare Utilization ↗
612
Medicare services
Top 50% in IL for gastroenterology
Not available
Unique patients (not deduplicated)
$102
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
Colonoscopy with biopsy
A procedure to collect tissue samples from the large intestine using a flexible tube with a camera. The samples are examined to check for abnormalities or disease.
133 $119 $1,100
Upper GI endoscopy with biopsy
A procedure to collect tissue samples from the esophagus, stomach, or upper small intestine using a flexible tube with a camera. The samples are examined to check for abnormalities.
98 $86 $814
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.
82 $90 $198
Colon polyp removal with endoscopic snare
This procedure removes polyps or growths from the large bowel using a flexible tube with a camera and a wire loop tool. The snare is used to cut off the growths during the examination.
53 $212 $1,319
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.
47 $61 $130
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.
45 $135 $335
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.
33 $63 $130
Moderate sedation during GI endoscopy
Sedation services provided by the physician performing a gastrointestinal endoscopic procedure. This requires an independent trained observer to assist in monitoring the patient.
32 $3 $85
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.
31 $124 $275
Initial hospital admission, moderate complexity
Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter.
25 $100 $250
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.
22 $40 $75
Colonoscopy
A diagnostic exam of the large bowel using a flexible endoscope to visualize the interior of the colon.
11 $94 $1,050
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 2024 ↗
$4,125
Total received (2018-2024)
Avg $589/year across 7 years
Top 30% in IL for gastroenterology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
19
Companies
148
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.

2024
$1,511
2023
$944
2022
$663
2021
$299
2020
$58
2019
$388
2018
$262

Payments by company (2024)

Takeda Pharmaceuticals U.S.A., Inc.
$508
ABBVIE INC.
$243
Janssen Biotech, Inc.
$243
Ardelyx, Inc.
$150
Merck Sharp & Dohme LLC
$138
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$107
PFIZER INC.
$54
Celgene Corporation
$46
Intercept Pharmaceuticals, Inc.
$22
Top 3 companies account for 65.8% of 2024 payments
All-time payments by company (2018-2024) ›
Takeda Pharmaceuticals U.S.A., Inc.
$996
ABBVIE INC.
$579
Janssen Biotech, Inc.
$544
PFIZER INC.
$283
Celgene Corporation
$261
Ardelyx, Inc.
$232
AbbVie Inc.
$228
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$150
Merck Sharp & Dohme LLC
$138
E.R. Squibb & Sons, L.L.C.
$131
AbbVie, Inc.
$121
Janssen Scientific Affairs, LLC
$110
Covidien LP
$103
QOL Medical, LLC
$71
BOSTON SCIENTIFIC CORPORATION
$68
INTERCEPT PHARMACEUTICALS, INC.
$38
Mauna Kea Technologies, Inc.
$26
CONMED Corporation
$25
Intercept Pharmaceuticals, Inc.
$22
Top 3 companies account for 51.4% of all-time payments
Associated products mentioned in payments ›
Barrx · CONMED HEMOSTASIS · DIFICID · ENTYVIO · EXALT · Entyvio · IBSRELA · Mavyret · OCALIVA · REMICADE · RINVOQ · SKYRIZI · STELARA · Sucraid · TREMFYA · XELJANZ · XIFAXAN · ZEPOSIA
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 →
Looking for a gastroenterology specialist in Riverside?
Compare gastroenterologists in the Riverside area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Gastroenterologists in nearby ZIP areas
464
County median income
$81,797
Nearest hospital to ZIP centroid (approximate)
HINES VA MEDICAL CENTER
1.6 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 2024
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

Dr. Bresnahan is a clinical cardiology specialist, with moderate Medicare volume, with 20 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. Bresnahan experienced with colonoscopy with biopsy?
Based on Medicare claims data, Dr. Bresnahan performed 133 colonoscopy with biopsy services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Bresnahan receive payments from pharmaceutical companies?
Yes. Dr. Bresnahan received a total of $4,125 from 19 companies across 148 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 Dr. Bresnahan's costs compare to other gastroenterologists in Riverside?
Dr. Bresnahan's average Medicare payment per service is $102. 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. Bresnahan) 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 →
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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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. Industry payment disclosure alone establishes neither wrongdoing nor legality. 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 →