Medicare Enrolled
Dr. Rockford Yapp, M.D., M.P.H.
Gastroenterology · Downers Grove, IL
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Speaking/Promotional
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. Yapp 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. Yapp
Dr. Rockford Yapp is a gastroenterology specialist in Downers Grove, IL, with 20 years of NPI registration. Based on federal Medicare data, Dr. Yapp performed 1,361 Medicare services across 1,046 unique beneficiaries.
Between the years covered by Open Payments, Dr. Yapp received a total of $321,018 from 67 pharmaceutical and/or device companies across 1279 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in gastroenterology. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Yapp 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 in practice
▲ Top 12% volume in IL
$321,018 industry payments
Medicare Practice Summary
Medicare Utilization ↗1,361
Medicare services
Top 12% in IL for gastroenterology
1,046
Unique beneficiaries
$87
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~68 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 |
|---|---|---|---|
| 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. |
372 | $67 | $195 |
| 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. |
296 | $66 | $192 |
| 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. |
159 | $64 | $1,350 |
| 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. |
110 | $105 | $286 |
| 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. |
84 | $108 | $366 |
| 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. |
67 | $72 | $200 |
| 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. |
64 | $145 | $1,500 |
| 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. |
36 | $220 | $1,500 |
| Colonoscopy for colorectal cancer screening, high risk A colonoscopy performed to screen for colorectal cancer in individuals identified as being at high risk for the disease. |
32 | $193 | $1,400 |
| Balloon dilation of esophagus, stomach, or upper small bowel, less than 3.0 cm A procedure using a flexible endoscope to widen a narrowed section of the esophagus, stomach, or upper small bowel with a balloon that is less than 3.0 cm in length. |
23 | $106 | $1,600 |
| Colonoscopy for colorectal cancer screening A colonoscopy performed to screen for colorectal cancer in individuals who are not at high risk for the disease. |
21 | $192 | $1,400 |
| Endoscopic removal of bile or pancreatic duct stone A flexible endoscope is used to remove stones or debris from the bile or pancreatic ducts. |
19 | $107 | $1,417 |
| New patient office visit, 15-29 minutes An initial office visit for a new patient lasting 15 to 29 minutes. This code is used when the total time spent on the date of the encounter meets this duration threshold. |
19 | $43 | $140 |
| 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. |
17 | $120 | $304 |
| 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. |
17 | $100 | $278 |
| Esophageal dilation with guide wire and endoscope A flexible endoscope is used to insert a guide wire into the esophagus, followed by dilation to widen the esophageal passage. |
14 | $120 | $1,000 |
| Endoscopic incision of pancreatic outlet A procedure where a flexible endoscope is used to make an incision in the pancreatic outlet. |
11 | $79 | $1,400 |
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 ↗$321,018
Total received (2018-2024)
Avg $45,860/year across 7 years
Top 3% in IL for gastroenterology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
67
Companies
1,279
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.
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$296,529 (92.4%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$17,879 (5.6%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$6,610 (2.1%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$85,174
2023
$31,002
2022
$28,795
2021
$18,187
2020
$19,859
2019
$56,634
2018
$81,368
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Phathom Pharmaceuticals, Inc.
$34,340
Madrigal Pharmaceuticals
$21,110
Gilead Sciences, Inc.
$11,878
Exact Sciences Corporation
$11,265
ABBVIE INC.
$3,893
Janssen Biotech, Inc.
$567
AIMMUNE THERAPEUTICS, INC.
$313
Ipsen Biopharmaceuticals, Inc
$226
PFIZER INC.
$185
Takeda Pharmaceuticals U.S.A., Inc.
$174
Novo Nordisk Inc
$157
Mallinckrodt Hospital Products Inc.
$141
Medtronic, Inc.
$140
Boston Scientific Corporation
$124
FUJIFILM Healthcare Americas Corporation
$119
Lilly USA, LLC
$100
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$81
QOL Medical, LLC
$57
Celgene Corporation
$50
ORPHALAN INC
$48
Olympus America Inc.
$43
Ardelyx, Inc.
$42
Echosens North America, Inc.
$39
GENZYME CORPORATION
$26
Celltrion USA Inc.
$21
Merck Sharp & Dohme LLC
$19
EVOKE PHARMA, INC.
$18
Top 3 companies account for 79.0% of 2024 payments
All-time payments by company (2018-2024) ›
Gilead Sciences, Inc.
$74,708
AbbVie, Inc.
$52,825
Phathom Pharmaceuticals, Inc.
$34,340
UCB, Inc.
$23,108
AbbVie Inc.
$21,784
Madrigal Pharmaceuticals
$21,110
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$16,711
ABBVIE INC.
$16,465
Exact Sciences Corporation
$11,501
PFIZER INC.
$8,112
Allergan Inc.
$7,958
Bayer HealthCare Pharmaceuticals Inc.
$6,628
RedHill Biopharma Inc.
$6,122
Intercept Pharmaceuticals, Inc.
$2,871
Echosens North America, Inc.
$2,357
Janssen Biotech, Inc.
$1,695
Takeda Pharmaceuticals U.S.A., Inc.
$1,336
Boston Scientific Corporation
$1,312
Allergan, Inc.
$1,089
Mauna Kea Technologies, Inc.
$734
Nestle HealthCare Nutrition Inc.
$616
GENZYME CORPORATION
$456
Janssen Scientific Affairs, LLC
$430
Ambu Inc.
$415
NESTLE HEALTHCARE NUTRITION INC.
$386
Medtronic, Inc.
$383
Celgene Corporation
$342
BOSTON SCIENTIFIC CORPORATION
$340
E.R. Squibb & Sons, L.L.C.
$325
AIMMUNE THERAPEUTICS, INC.
$313
Novo Nordisk Inc
$307
INTERCEPT PHARMACEUTICALS, INC.
$303
Mallinckrodt Hospital Products Inc.
$287
Ethicon US, LLC
$279
Shire North American Group Inc
$277
Apollo Endosurgery US Inc
$270
Ipsen Biopharmaceuticals, Inc
$226
Braintree Laboratories, Inc.
$218
Merck Sharp & Dohme Corporation
$171
QOL Medical, LLC
$159
Ferring Pharmaceuticals Inc.
$139
Ironwood Pharmaceuticals, Inc
$137
Lucid Diagnostics Inc.
$133
Aries Pharmaceuticals, Inc.
$121
Lilly USA, LLC
$120
Romark Laboratories, LC
$119
FUJIFILM Healthcare Americas Corporation
$119
Covidien LP
$113
Ardelyx, Inc.
$112
Boehringer Ingelheim Pharmaceuticals, Inc.
$71
CONMED Corporation
$64
AngioDynamics, Inc.
$49
ORPHALAN INC
$48
Regeneron Healthcare Solutions, Inc.
$47
Olympus America Inc.
$43
Synergy Pharmaceuticals Inc
$38
IRONWOOD PHARMACEUTICALS, INC
$37
Alfasigma USA, Inc.
$36
Alexion Pharmaceuticals, Inc.
$35
Prometheus Laboratories Inc.
$34
EVOKE PHARMA, INC.
$33
Celltrion USA Inc.
$21
Alnylam Pharmaceuticals Inc.
$21
VIVUS LLC
$21
Merck Sharp & Dohme LLC
$19
Enterra Medical, Inc.
$14
Endogastric Solutions, Inc
$10
Top 3 companies account for 50.4% of all-time payments
Associated products mentioned in payments ›
APRISO · AXIOS · Aemcolo · Alinia Tablets 500mg 30 count bottle · Barrx · Bylvay · CIMZIA · CLENPIQ · COLOGUARD · CONMED HEMOSTASIS · CREON · CUVRIOR · CYLTEZO · Cimzia · Cologuard Collection Kit · Creon · DIFICID · DISPOSABLE BIOPSY FORCEPS · DUPIXENT · Dexilant · ELEVIEW · ENDOFLIP · ENTYVIO · EOHILIA · ESOPHYX · EVIS EXERA III COLONOVIDEOSCOPE · EXALT · EXALT Model D · Entyvio · Epclusa · FibroScan · Fibroscan · GATTEX · GENERAL BILIARY DEVICES · GENERAL ENDOCHOICE · GENERAL BILIARY DEVICES · GI GENIUS · GIMOTI · General - Therapies · HUMIRA · Humira · IBSRELA · IQIRVO · LINX Reflux Management System · LINZESS · Linzess · Livdelzi · MAVYRET · Mavyret · Motegrity · Nexavar · OCALIVA · OMVOH · OXLUMO · Orbera · Overstitch · PANCREAZE · PillCam · REBYOTA · RELISTOR · REMICADE · RESMETIROM · RESOLUTION CLIP · REZDIFFRA · RINVOQ · Resolution Clip · SKYRIZI · SPYGLASS · STELARA · SUCRAID · SUPREP · SUPREP BOWEL PREP · SUTAB · SpyGlass · Stivarga · Sucraid · TERLIVAZ · TREMFYA · TRULANCE · Talicia · Trulance · UCERIS · UTASWAKO AFP-L3 · Ultomiris · VIBERZI · VOQUEZNA · VOWST · XELJANZ · XIFAXAN · XIFAXANIBSD · ZENPEP · ZEPATIER · ZEPOSIA · ZYMFENTRA · 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 →
The majority of payments (92%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in gastroenterology and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 3% for gastroenterology in IL.
Geographic Context
Gastroenterologists within 10 mi
496
Per 100K population
53.5
County median income
$110,502
Nearest hospital
ADVOCATE GOOD SAMARITAN HOSPITAL
0.0 mi
0.0 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 reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Yapp is a clinical cardiology specialist, with above-average Medicare volume (top 12% in IL), with speaking/promotional industry engagement in the top 3% of IL peers, 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. Yapp experienced with office visit, established patient (20-29 min)?
Based on Medicare claims data, Dr. Yapp performed 372 office visit, established patient (20-29 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. Yapp receive payments from pharmaceutical companies?
Yes. Dr. Yapp received a total of $321,018 from 67 companies across 1,279 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. Yapp's costs compare to other gastroenterologists in Downers Grove?
Dr. Yapp's average Medicare payment per service is $87. 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. Yapp) 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. 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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