Physician Profile
Unclaimed ProfileAbout WAN
David Wenhan Wan, M.D. is a healthcare provider in New York, NY specialising in gastroenterology. David trained at New York University School of Medicine, graduating in 2005. David is also listed as specialising in internal medicine. According to Medicare claims data, David cared for 667 Medicare patients across 713 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
Common questions
What is Dr. Wan's specialty?
Dr. Wan is a gastroenterology in New York, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where can I find Dr. Wan?
Dr. Wan is listed at 1305 YORK AVE FL 4, New York, NY 10021. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Wan?
The number on file is (646) 962-4000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Wan's NPI number?
Dr. Wan's National Provider Identifier is 1598941098. 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. Wan's medical education?
Dr. Wan attended New York University School of Medicine, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Wan been practising?
Dr. Wan has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Wan known for?
According to Medicare billing data, Dr. Wan 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; provides treatments such as imaging of digestive tract done from the inside of the digestive tract, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Wan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Wan. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (646) 962-4000
- Email not available
Practice Locations
1305 YORK AVE FL 4
New York, NY 10021
Procedures Most Often Billed to Medicare
713 services · 667 patients · 15 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
121 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
82 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
30 |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
21 |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
20 |
| Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43255 |
16 |
| Insertion of stomach tube using a flexible endoscope | Procedure | 43246 |
12 |
| Imaging of digestive tract done from the inside of the digestive tract | Treatment | 91110 |
16 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
138 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
85 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other gastroenterology specialists at this location 4
Same specialty, same street address — most likely the same department or group.
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 New York 8
Same specialty, same city.
More connections — 22 related providers in 3 groups
Trained at New York University School of Medicine 6
Other providers in the same specialty who trained at the same institution.
Class of 2005 at New York 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 NY who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.