Medicare Enrolled
Dr. Matthew Chin, M.D.
Gastroenterology · Walnut Creek, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
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. Chin 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. Chin
Dr. Matthew Chin is a gastroenterology specialist in Walnut Creek, CA, with 15 years of NPI registration. Based on federal Medicare data, Dr. Chin performed 1,306 Medicare services across 1,179 unique beneficiaries.
Between the years covered by Open Payments, Dr. Chin received a total of $3,408 from 29 pharmaceutical and/or device companies across 108 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. Chin 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.
✓ 15 years in practice
▲ Top 23% volume in CA
$3,408 industry payments
Medicare Practice Summary
Medicare Utilization ↗1,306
Medicare services
Top 23% in CA for gastroenterology
1,179
Unique beneficiaries
$122
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~87 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 |
|---|---|---|---|
| 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. |
171 | $52 | $1,080 |
| 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. |
147 | $214 | $1,624 |
| 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. |
128 | $78 | $1,275 |
| 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. |
88 | $105 | $305 |
| Endoscopic removal of bile or pancreatic duct stone A flexible endoscope is used to remove stones or debris from the bile or pancreatic ducts. |
81 | $74 | $1,829 |
| Radiologist review of bile duct tube placement imaging A radiologist reviews images taken during the placement of a tube into the bile duct using an endoscope. |
76 | $21 | $191 |
| 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. |
66 | $133 | $461 |
| Pancreatic or bile duct stent insertion A flexible endoscope is used to place a stent into the pancreatic or bile duct to keep it open. |
58 | $346 | $1,941 |
| Endoscopic ultrasound of esophagus, stomach, or upper small bowel An ultrasound exam of the esophagus, stomach, and/or upper small bowel performed using a flexible endoscope. |
48 | $120 | $1,015 |
| 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. |
44 | $72 | $222 |
| 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. |
36 | $109 | $3,005 |
| Endoscopic ultrasound-guided needle biopsy A procedure using an ultrasound-equipped endoscope to guide a needle for tissue sampling of the esophagus, stomach, or upper small bowel. |
33 | $183 | $1,085 |
| 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 | $74 | $210 |
| Endoscopic exam of bile or pancreatic duct A procedure using a flexible tube with a camera to examine the common bile duct and/or pancreatic duct. |
31 | $106 | $362 |
| 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. |
31 | $118 | $412 |
| 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. |
26 | $80 | $308 |
| Stent replacement in pancreatic or bile duct A flexible endoscope is used to remove an existing stent and insert a new one into the pancreatic or bile duct. |
25 | $373 | $2,018 |
| 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. |
22 | $157 | $585 |
| Endoscopic ultrasound of esophagus, stomach, or small bowel An ultrasound exam of the esophagus, stomach, and/or upper small bowel performed using a flexible endoscope inserted through the mouth. |
21 | $103 | $721 |
| Endoscopic removal of pancreatic or bile duct stent A flexible endoscope is used to remove a stent from the pancreatic or bile duct. This procedure accesses the ducts internally to extract the device. |
19 | $245 | $1,602 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
19 | $156 | $406 |
| Removal of large bowel tissue using flexible endoscope A procedure to remove tissue from the large intestine using a flexible tube with a camera. The endoscope allows the provider to access and excise the tissue directly. |
18 | $307 | $1,806 |
| Endoscopic incision of pancreatic outlet A procedure where a flexible endoscope is used to make an incision in the pancreatic outlet. |
16 | $49 | $1,701 |
| Radiologist review of bile and pancreatic duct imaging A radiologist reviews images obtained from a tube placed into the bile and pancreatic ducts using an endoscope. |
16 | $25 | $115 |
| Upper endoscopy (EGD) A diagnostic exam of the esophagus, stomach, and upper small bowel using a flexible endoscope. |
15 | $85 | $839 |
| Endoscopic control of upper GI bleeding A flexible endoscope is used to locate and stop bleeding in the esophagus, stomach, or upper small intestine. |
14 | $129 | $1,201 |
| 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. |
13 | $44 | $145 |
| Injection beneath large bowel lining via endoscope A flexible endoscope is used to inject medication or fluid beneath the lining of the large intestine. |
11 | $15 | $1,291 |
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.
7.8% high complexity
39.7% medium
52.5% routine
Industry Payment Transparency
Open Payments through 2024 ↗$3,408
Total received (2018-2024)
Avg $487/year across 7 years
Top 37% in CA for gastroenterology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
29
Companies
108
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
$3,108 (91.2%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$300 (8.8%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$440
2023
$331
2022
$239
2021
$511
2020
$107
2019
$831
2018
$948
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$239
Madrigal Pharmaceuticals
$142
Janssen Biotech, Inc.
$36
Regeneron Healthcare Solutions, Inc.
$24
Top 3 companies account for 94.5% of 2024 payments
All-time payments by company (2018-2024) ›
AbbVie, Inc.
$395
Lumendi LLC
$345
ABBVIE INC.
$302
Intuitive Surgical, Inc.
$300
AbbVie Inc.
$273
Janssen Biotech, Inc.
$232
Boston Scientific Corporation
$225
Medtronic USA, Inc.
$150
Madrigal Pharmaceuticals
$142
Takeda Pharmaceuticals U.S.A., Inc.
$125
Cook Medical LLC
$115
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$99
Endogastric Solutions, Inc
$98
Gilead Sciences, Inc.
$90
Intercept Pharmaceuticals, Inc.
$86
ERBE USA Inc
$64
Echosens North America, Inc.
$59
Braintree Laboratories, Inc.
$53
Prometheus Laboratories Inc.
$39
PFIZER INC.
$31
GENZYME CORPORATION
$31
Olympus America Inc.
$30
Regeneron Healthcare Solutions, Inc.
$24
INTERCEPT PHARMACEUTICALS, INC.
$20
Merck Sharp & Dohme Corporation
$19
Allergan Inc.
$19
Allergan, Inc.
$16
Antares Pharma, Inc.
$16
RedHill Biopharma Inc.
$12
Top 3 companies account for 30.6% of all-time payments
Associated products mentioned in payments ›
ADVANIX · ALLIANCE · ARTiC-L · AXIOS · Aemcolo · Amitiza · CREON · Cook Medical Hemostasis · Creon · DIFICID · DUPIXENT · Da Vinci Surgical System · DiLumen · ESOPHYX · Entyvio · FibroScan · General - Hemostasis · HUMIRA · HYBRID KNIFE · Humira · INFLECTRA · INTERSTIM ICON · LINZESS · MOTEGRITY · MOVIPREP · Mavyret · Motegrity · OCALIVA · ORISE · Olympus Biliary Devices · Otrexup · PLENVU · RESMETIROM · RINVOQ · SKYRIZI · STELARA · SUPREP · SUPREP BOWEL PREP · SUTAB · TREMFYA · VIBERZI · XIFAXAN
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 (91%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Gastroenterologists within 10 mi
175
Per 100K population
15.1
County median income
$125,727
Nearest hospital
KAISER FOUNDATION HOSPITAL - WALNUT CREEK
2.8 mi
2.8 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. Chin is a clinical cardiology specialist, with above-average Medicare volume (top 23% in CA), with low-engagement industry engagement, with 15 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. Chin experienced with upper gi endoscopy with biopsy?
Based on Medicare claims data, Dr. Chin performed 171 upper gi endoscopy 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. Chin receive payments from pharmaceutical companies?
Yes. Dr. Chin received a total of $3,408 from 29 companies across 108 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. Chin's costs compare to other gastroenterologists in Walnut Creek?
Dr. Chin's average Medicare payment per service is $122. 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. Chin) 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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