Medicare Enrolled
Dr. Ningxin Zeng, MD
Gastroenterology · Kennewick, WA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Low-engagement
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. Zeng 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. Zeng
Dr. Ningxin Zeng is a gastroenterology specialist in Kennewick, WA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Zeng performed 1,619 Medicare services across 1,519 unique beneficiaries.
Between the years covered by Open Payments, Dr. Zeng received a total of $3,548 from 31 pharmaceutical and/or device companies across 176 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. Zeng 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 5% volume in WA
$3,548 industry payments
Medicare Practice Summary
Medicare Utilization ↗1,619
Medicare services
Top 5% in WA for gastroenterology
1,519
Unique beneficiaries
$107
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~81 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 |
|---|---|---|---|
| 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. |
334 | $84 | $775 |
| 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. |
313 | $71 | $550 |
| 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. |
263 | $201 | $1,272 |
| 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. |
144 | $126 | $483 |
| 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. |
135 | $91 | $250 |
| 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. |
64 | $72 | $191 |
| Upper endoscopy (EGD) A diagnostic exam of the esophagus, stomach, and upper small bowel using a flexible endoscope. |
58 | $62 | $360 |
| 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. |
46 | $63 | $174 |
| 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. |
40 | $88 | $266 |
| Injection beneath large bowel lining via endoscope A flexible endoscope is used to inject medication or fluid beneath the lining of the large intestine. |
37 | $13 | $836 |
| 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. |
36 | $171 | $968 |
| Endoscopic control of upper GI bleeding A flexible endoscope is used to locate and stop bleeding in the esophagus, stomach, or upper small intestine. |
28 | $126 | $207 |
| Colonoscopy A diagnostic exam of the large bowel using a flexible endoscope to visualize the interior of the colon. |
25 | $127 | $848 |
| 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. |
18 | $76 | $542 |
| 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. |
17 | $50 | $127 |
| Critical care, first 30-74 min Emergency medical care for a critically ill or injured patient lasting between 30 and 74 minutes. This service involves direct patient care and medical decision making to stabilize the patient. |
17 | $160 | $588 |
| Colonoscopy for colorectal cancer screening A colonoscopy performed to screen for colorectal cancer in individuals who are not at high risk for the disease. |
16 | $169 | $646 |
| Endoscopy of digestive tract Imaging of the digestive tract performed from the inside using an endoscope. |
15 | $90 | $256 |
| Endoscopic control of bleeding in large intestine A flexible tube with a camera is inserted into the large intestine to locate and stop bleeding. |
13 | $205 | $994 |
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 ↗$3,548
Total received (2018-2024)
Avg $507/year across 7 years
Top 18% in WA for gastroenterology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
31
Companies
176
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
$3,548 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,133
2023
$355
2022
$629
2021
$363
2020
$489
2019
$504
2018
$76
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Janssen Biotech, Inc.
$209
Lilly USA, LLC
$169
Phathom Pharmaceuticals, Inc.
$161
Takeda Pharmaceuticals U.S.A., Inc.
$138
PFIZER INC.
$134
ABBVIE INC.
$71
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$55
Exact Sciences Corporation
$32
Lundbeck LLC
$31
Daiichi Sankyo Inc.
$28
Alnylam Pharmaceuticals Inc.
$22
Gilead Sciences, Inc.
$21
United Therapeutics Corporation
$18
Hologic Sales and Service, LLC
$16
Philips North America LLC
$15
CapsoVision, Inc.
$14
Top 3 companies account for 47.6% of 2024 payments
All-time payments by company (2018-2024) ›
PFIZER INC.
$468
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$419
ABBVIE INC.
$390
Janssen Biotech, Inc.
$347
AbbVie Inc.
$212
Takeda Pharmaceuticals U.S.A., Inc.
$190
Celgene Corporation
$187
Lilly USA, LLC
$181
Phathom Pharmaceuticals, Inc.
$161
Ardelyx, Inc.
$109
AbbVie, Inc.
$105
Braintree Laboratories, Inc.
$90
Intercept Pharmaceuticals, Inc.
$85
Allergan Inc.
$69
Ferring Pharmaceuticals Inc.
$64
Merck Sharp & Dohme Corporation
$63
Shionogi Inc
$56
Gilead Sciences, Inc.
$45
Alnylam Pharmaceuticals Inc.
$39
Allergan, Inc.
$37
Amgen Inc.
$34
Exact Sciences Corporation
$32
Lundbeck LLC
$31
Daiichi Sankyo Inc.
$28
United Therapeutics Corporation
$18
Hologic Sales and Service, LLC
$16
Philips North America LLC
$15
RedHill Biopharma Inc.
$15
IRONWOOD PHARMACEUTICALS, INC
$15
Kowa Pharmaceuticals America, Inc.
$14
CapsoVision, Inc.
$14
Top 3 companies account for 36.0% of all-time payments
Associated products mentioned in payments ›
(CK4) MCOT · Amitiza · BASAGLAR · CLENPIQ · CREON · CapsoCam Plus · Cologuard Collection Kit · CoolSeal Generator · Creon · DIFICID · Dexilant · ENTYVIO · EVENITY · HUMIRA · Humira · IBSRELA · INFLECTRA · INJECTAFER · JARDIANCE · LINZESS · Linzess · MAVYRET · MOTEGRITY · MOTOFEN · MOVIPREP · Mavyret · Mulpleta · OCALIVA · OMVOH · ORENITRAM · OXLUMO · PLENVU · Prolia · RENFLEXIS · REXULTI · RINVOQ · SEGLENTIS · SKYRIZI · STELARA · SUPREP · SUTAB · TREMFYA · TRULANCE · Talicia · VELSIPITY · VOQUEZNA · XALATAN · XELJANZ · XIFAXAN · ZENPEP · ZEPOSIA
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.
Geographic Context
Gastroenterologists within 10 mi
11
Per 100K population
5.2
County median income
$87,316
Nearest hospital
TRIOS HEALTH
5.5 mi
5.5 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. Zeng is a mixed practice specialist, with above-average Medicare volume (top 5% in WA), with low-engagement industry engagement in the top 18% of WA 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. Zeng experienced with colonoscopy with biopsy?
Based on Medicare claims data, Dr. Zeng performed 334 colonoscopy with biopsy 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. Zeng receive payments from pharmaceutical companies?
Yes. Dr. Zeng received a total of $3,548 from 31 companies across 176 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. Zeng's costs compare to other gastroenterologists in Kennewick?
Dr. Zeng's average Medicare payment per service is $107. 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. Zeng) 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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