Dr. Rex G. Cheng, MD
- Medicare services, 2024
- 148
- Medicare patients, 2024
- 135
- Part D claims, 2024
- 740
- Hospital affiliations
- 2
- Industry payments
- $11
- Practice address
- 3333 S 120th Pl, Tukwila, WA 98168
- Practice phone
- Call (425) 687-4400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Providence Infusion and Pharmacy Services
Tukwila, Washington
Find Dr. Cheng's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Rex G. Cheng is a gastroenterologist in Tukwila, Washington
Dr. Cheng practices at Providence Infusion and Pharmacy Services in Tukwila, Washington.
Dr. Cheng's NPI, 1689998874, was assigned on March 17, 2010. Dr. Cheng graduated from Duke University School of Medicine in 2010. Dr. Cheng holds Washington license MD60579501.
- NPI
- 1689998874NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709102726
- NPI enumeration date
- March 17, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (425) 687-4400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rex G. Cheng practices at Providence Infusion and Pharmacy Services in Tukwila, Washington
Dr. Cheng's primary practice is Providence Infusion and Pharmacy Services, at 3333 S 120th Pl, Tukwila, WA 98168 in King County. The practice phone is (425) 687-4400.
- Providence Infusion and Pharmacy Services3333 S 120th Pl, Tukwila, WA 98168 · King CountyPhone(425) 687-4400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Rex G. Cheng is affiliated with 3 sites of care and 1 medical group
Dr. Cheng's primary practice is Providence Infusion and Pharmacy Services in Tukwila, Washington. Dr. Cheng is also affiliated with Swedish First Hill Campus. The medical group on file is Pacific Medical Centers (PacMed). Dmand AI also links Dr. Cheng 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. Rex G. Cheng's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cheng practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Providence Infusion and Pharmacy Services | 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. Rex G. Cheng is one of 434 gastroenterologists in Washington
Gastroenterology is Dr. Cheng's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Cheng is licensed in Washington.
Specialties and state licenses
- Gastroenterology, WashingtonPrimary
Gastroenterologists near Dr. Cheng
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. Rex G. Cheng billed Medicare for 148 services in 2024
CMS data shows 148 Medicare services from Dr. Cheng across 5 procedure codes in 2024, for 135 Medicare patients. Medicare paid $19,922 for them.
Dr. Cheng's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 1102024: 8027%
- Office and hospital visits
- 2023: 872024: 6822%
Where Dr. Cheng's Medicare services took place, 2024
- In an office6846%
- In a facility8054%
Dr. Cheng compared with the Washington median for gastroenterologists, 2024
- Dr. Cheng
- Washington median
- Medicare services
- 148vs 35658% below
- Medicare patients
- 135vs 24445% below
- Part D claims
- 576vs 2722.1 times
Medians across 433 gastroenterologists in Washington with Dmand AI profiles that report each measure.
Dr. Cheng'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. Rex G. Cheng treated 135 Medicare patients in 2024, average age 71
CMS counts 135 Medicare patients who saw Dr. Cheng in 2024. The largest group is 65 to 74, with 82 patients. 61% of them have high cholesterol, and 51% have high blood pressure. 9% are also on Medicaid. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Cheng's median patient age at 70, with 54% women.
Dr. Cheng's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Cheng's Medicare patients by sex, 2024
- Women7757%
- Men5843%
Chronic conditions among Dr. Cheng's Medicare patients, 2024
- High cholesterol61%
- High blood pressure51%
- Arthritis36%
- Diabetes21%
- Ischemic heart disease19%
- Mood disorders18%
- Anxiety16%
- Chronic kidney disease16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Cheng's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rex G. Cheng wrote 740 Medicare Part D claims in 2024
In 2024, Dr. Cheng wrote 740 Medicare Part D claims for 270 patients. 84% of them were for generic drugs. CMS names the drug for 576 of them, across 15 drugs with 11 or more claims each, at $74,133 in total drug cost. In 2023, CMS named 730 claims across 17 drugs.
Dr. Cheng's Part D claims by kind of drug, 2024
- Generic623 claims84%
- Brand-name117 claims16%
Dr. Cheng'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. Cheng's Part D claims, 2024
- Antibiotics3%22 of 740 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: 7302024: 57621%
Drugs named by CMS: 15 in 2024, 17 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. Rex G. Cheng ranks in the 55th percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Cheng accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 30 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Cheng, more than 55% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Cheng ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 55th percentile30 procedures
- Colonoscopy
- 50th percentile23 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Rex G. Cheng received $11 in industry payments in 2019
CMS Open Payments shows 1 general payment to Dr. Cheng from 1 drug or device company in 2019. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $11.
Companies that paid Dr. Cheng the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Rex G. Cheng graduated from Duke University School of Medicine
Dr. Cheng graduated from Duke University School of Medicine in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Rex G. Cheng's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Rex G. Cheng
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. Rex G. Cheng's NPI number?
Dr. Rex G. Cheng's NPI number is 1689998874. It was assigned on March 17, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Rex G. Cheng?
Dr. Rex G. Cheng is a gastroenterologist in Tukwila, Washington. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Rex G. Cheng practice?
Dr. Cheng practices at 3333 S 120th Pl, Tukwila, WA 98168. Dr. Cheng's primary practice is Providence Infusion and Pharmacy Services in Tukwila, Washington. Dmand AI also links Dr. Cheng to 1 hospital.
What is Dr. Rex G. Cheng's office phone number?
The practice phone on file for Dr. Cheng is (425) 687-4400.
What is Dr. Rex G. Cheng's medical license number?
Dr. Cheng holds Washington license MD60579501.
Which hospitals is Dr. Rex G. Cheng affiliated with?
Dr. Cheng is affiliated with Swedish First Hill Campus. Dmand AI links Dr. Cheng to 1 more hospital.
What medical group is Dr. Rex G. Cheng part of?
Dr. Cheng is linked to Pacific Medical Centers (PacMed).
Does Dr. Rex G. Cheng accept Medicare?
Yes. CMS data shows Dr. Cheng billed Medicare for 148 services in 2024, and Dr. Cheng accepts Medicare assignment.
How many Medicare patients does Dr. Rex G. Cheng see?
CMS counts 135 Medicare patients who saw Dr. Cheng in 2024, with an average age of 71.
What services does Dr. Rex G. Cheng bill to Medicare?
In 2024, Dr. Cheng's most billed Medicare services were surgery: digestive system (45385), office visit, established patient (99214) and office visit, new patient (99204).
Show 4 more questionsShow fewer questions
Where did Dr. Rex G. Cheng go to medical school?
Dr. Cheng graduated from Duke University School of Medicine in 2010.
What drugs does Dr. Rex G. Cheng prescribe most?
In 2024 Medicare Part D data, Dr. Cheng's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Gavilyte-G.
Has Dr. Rex G. Cheng received payments from drug or device companies?
CMS Open Payments shows $11 in general payments to Dr. Cheng from 1 company from 2019 to 2019. The largest total came from Gilead Sciences, Inc.
How long has Dr. Rex G. Cheng been practicing?
Dr. Cheng graduated from medical school in 2010, 16 years ago.
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