Dr. Siew M. Wong, MD
- Medicare services, 2024
- 1,693
- Medicare patients, 2024
- 529
- Part D claims, 2024
- 625
- MIPS score, 2024
- 90
- Hospital affiliations
- 2
- Practice address
- 8819 W Victoria Ave, Kennewick, WA 99336
- Practice phone
- Call (509) 460-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Tri-Cities Digestive Health Center, PS
Kennewick, Washington
Find Dr. Wong's professional email, personal email and mobile number
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Dr. Siew M. Wong is a gastroenterologist in Kennewick, Washington
Dr. Wong practices at Tri-Cities Digestive Health Center, PS in Kennewick, Washington.
Dr. Wong's NPI, 1336387356, was assigned on January 29, 2009. Dr. Wong holds Washington license MD60223678.
- NPI
- 1336387356NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648328344
- NPI enumeration date
- January 29, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (509) 460-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Siew M. Wong practices at Tri-Cities Digestive Health Center, PS in Kennewick, Washington
Dr. Wong's primary practice is Tri-Cities Digestive Health Center, PS, at 8819 W Victoria Ave, Kennewick, WA 99336 in Benton County. The practice phone is (509) 460-5500.
- Tri-Cities Digestive Health Center, PS8819 W Victoria Ave, Kennewick, WA 99336 · Benton CountyPhone(509) 460-5500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Siew M. Wong is affiliated with 3 sites of care and 1 medical group
Dr. Wong's primary practice is Tri-Cities Digestive Health Center, PS in Kennewick, Washington. Dr. Wong is also affiliated with Kadlec Regional Medical Center. The medical group on file is Tri-Cities Digestive Health Center. Dmand AI also links Dr. Wong to 1 more hospital, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Siew M. Wong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wong practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tri-Cities Digestive Health Center, PS | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Siew M. Wong is one of 434 gastroenterologists in Washington
Gastroenterology is Dr. Wong's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Wong is licensed in Washington.
Specialties and state licenses
- Gastroenterology, WashingtonPrimary
Gastroenterologists near Dr. Wong
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Siew M. Wong billed Medicare for 1,693 services in 2024
CMS data shows 1,693 Medicare services from Dr. Wong across 14 procedure codes in 2024, for 529 Medicare patients. Medicare paid $132,323 for them.
Dr. Wong's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4272024: 48714%
- Lab and pathology
- 2023: 4372024: 48010%
- Surgery
- 2023: 3942024: 44513%
- Other services
- 2023: 2022024: 28139%
Where Dr. Wong's Medicare services took place, 2024
- In an office96757%
- In a facility72643%
Dr. Wong compared with the Washington median for gastroenterologists, 2024
- Dr. Wong
- Washington median
- Medicare services
- 1,693vs 3564.8 times
- Medicare patients
- 529vs 2442.2 times
- Part D claims
- 485vs 27278% above
Medians across 433 gastroenterologists in Washington with Dmand AI profiles that report each measure.
Dr. Wong's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Siew M. Wong treated 529 Medicare patients in 2024, average age 73
CMS counts 529 Medicare patients who saw Dr. Wong in 2024. The largest group is 65 to 74, with 302 patients. 72% of them have high cholesterol, and 67% have high blood pressure. Their average risk score is 0.95, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Wong's median patient age at 68, with 66% women.
Dr. Wong's Medicare patients by age, 2024
Dr. Wong's Medicare patients by sex, 2024
- Women31760%
- Men21240%
Chronic conditions among Dr. Wong's Medicare patients, 2024
- High cholesterol72%
- High blood pressure67%
- Arthritis48%
- Diabetes27%
- Chronic kidney disease19%
- Mood disorders19%
- Depression18%
- Ischemic heart disease16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Wong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women66%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Siew M. Wong wrote 625 Medicare Part D claims in 2024
In 2024, Dr. Wong wrote 625 Medicare Part D claims for 304 patients. 79% of them were for generic drugs. CMS names the drug for 485 of them, across 12 drugs with 11 or more claims each, at $305,580 in total drug cost. In 2023, CMS named 394 claims across 10 drugs.
Dr. Wong's Part D claims by kind of drug, 2024
- Generic494 claims79%
- Brand-name131 claims21%
Dr. Wong's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Wong's Part D claims, 2024
- Antibiotics2%12 of 625 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3942024: 48523%
Drugs named by CMS: 12 in 2024, 10 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Siew M. Wong scored 90 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Wong for performance year 2024, reported individually. Dr. Wong accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 183 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Wong, more than 89% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Wong's MIPS scores, performance year 2024
- 90of 100Final score
- 96.9of 100Quality
- 93of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Wong ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 89th percentile183 procedures
- Colonoscopy
- 89th percentile156 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Siew M. Wong received $2,257 in industry payments from 2016 to 2024
CMS Open Payments shows 102 general payments to Dr. Wong from 22 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 99% of the total. Allergan Inc. paid the most, $620.
General payments to Dr. Wong by program year, 2016 to 2024
General payments to Dr. Wong by kind, 2016 to 2024
- Food and beverage$2,22699%
- Education$301%
Companies that paid Dr. Wong the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Siew M. Wong's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Siew M. Wong
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Siew M. Wong's NPI number?
Dr. Siew M. Wong's NPI number is 1336387356. It was assigned on January 29, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Siew M. Wong?
Dr. Siew M. Wong is a gastroenterologist in Kennewick, Washington. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Siew M. Wong practice?
Dr. Wong practices at 8819 W Victoria Ave, Kennewick, WA 99336. Dr. Wong's primary practice is Tri-Cities Digestive Health Center, PS in Kennewick, Washington. Dmand AI also links Dr. Wong to 1 hospital.
What is Dr. Siew M. Wong's office phone number?
The practice phone on file for Dr. Wong is (509) 460-5500.
What is Dr. Siew M. Wong's medical license number?
Dr. Wong holds Washington license MD60223678.
Which hospitals is Dr. Siew M. Wong affiliated with?
Dr. Wong is affiliated with Kadlec Regional Medical Center. Dmand AI links Dr. Wong to 1 more hospital.
What medical group is Dr. Siew M. Wong part of?
Dr. Wong is linked to Tri-Cities Digestive Health Center.
Does Dr. Siew M. Wong accept Medicare?
Yes. CMS data shows Dr. Wong billed Medicare for 1,693 services in 2024, and Dr. Wong accepts Medicare assignment.
What is Dr. Siew M. Wong's MIPS score?
Dr. Wong's MIPS final score for performance year 2024 is 90 out of 100, reported individually.
How many Medicare patients does Dr. Siew M. Wong see?
CMS counts 529 Medicare patients who saw Dr. Wong in 2024, with an average age of 73.
Show 4 more questionsShow fewer questions
What services does Dr. Siew M. Wong bill to Medicare?
In 2024, Dr. Wong's most billed Medicare services were lab and pathology test (88305), medicare service (G0500) and office visit, new patient (99203).
What drugs does Dr. Siew M. Wong prescribe most?
In 2024 Medicare Part D data, Dr. Wong's most prescribed drugs by claims were Omeprazole, Peg-3350 And Electrolytes and Gavilyte-G.
Has Dr. Siew M. Wong received payments from drug or device companies?
CMS Open Payments shows $2,257 in general payments to Dr. Wong from 22 companies from 2016 to 2024. The largest total came from Allergan Inc.
How long has Dr. Siew M. Wong been practicing?
Dr. Wong graduated from medical school in 2002, 24 years ago.
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