Physician Profile
Unclaimed ProfileAbout CHENG
Rex Cheng, M.D. is a healthcare provider in Seattle, WA specializing in gastroenterology. Rex trained at Duke University School of Medicine, graduating in 2010. Rex is also listed as specializing in internal medicine. According to Medicare claims data, Rex cared for 146 Medicare patients across 148 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (206) 505-1300
- Email not available
Practice Locations
1101 MADISON ST STE 301
Seattle, WA 98104
Procedures Most Often Billed to Medicare
148 services · 146 patients · 5 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
48 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
19 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
13 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
38 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
30 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other gastroenterology specialists in Seattle 8
Same specialty, same city.
Trained at Duke University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2010 at Duke University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of polyps or growths of large bowel using an endoscope with mechanical snare 8
Providers in WA who bill this service to Medicare most often.
Common questions
What is Dr. Cheng's specialty?
Dr. Cheng is a gastroenterology in Seattle, WA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where can I find Dr. Cheng?
Dr. Cheng is listed at 1101 MADISON ST STE 301, Seattle, WA 98104. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Cheng?
The number on file is (206) 505-1300. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Cheng's NPI number?
Dr. Cheng's National Provider Identifier is 1689998874. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Cheng's medical education?
Dr. Cheng attended Duke University School of Medicine, graduating in 2010. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Cheng been practicing?
Dr. Cheng has 16 years experience. Calculated from a graduation year of 2010, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Cheng known for?
According to Medicare billing data, Dr. Cheng performs procedures including removal of polyps or growths of large bowel using an endoscope with mechanical snare, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope and biopsy of large bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Cheng confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Cheng. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.