Wallen Chan, M.D.
Gastroenterology · Staten Island, NY
Wallen Chan, M.D. is a gastroenterology in Staten Island, NY with about 37 yrs in practice.
- SpecialtyGastroenterology
- Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI (1989)
- TelehealthNot reported
- Practice size173 clinicians
- Medicare assignmentAccepts assignment (Medicare-approved amount as full payment)
- Medicare activity~350 patients across 655 services, avg age 73
Common services
| Service | Medicare services | Medicare allows | |
|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | 150 | $109 | See prices → |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | 121 | $154 | See prices → |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | 78 | $201 | See prices → |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 72 | $236 | See prices → |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | 53 | $127 | See prices → |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 51 | $298 | See prices → |
| Diagnostic exam of large bowel using a flexible endoscope | 27 | $221 | See prices → |
Hospital affiliations
Source: CMS Medicare Physician & Other Practitioners and the Doctors & Clinicians National Downloadable File (most recent release). Counts reflect Original Medicare activity only and are not a measure of quality. “Medicare allows” is the Medicare fee schedule amount — not what an insured or cash patient pays; for patient prices see the linked procedure pages. Always confirm a clinician’s current details with their office.