npidexNPI registry + Medicare data

CHUN-YANG CHANG, MD

Gastroenterology Physician · OREGON CITY, OR

Individual Active NPI 1033106034

Medicare payment data Part B · 2024

YearBeneficiariesServicesSubmittedAllowedPaid
20241831,671$309,097$72,191$56,759
20231983,546$418,832$114,936$91,708
2022201435$259,744$50,250$38,781

Top procedures (2024)

HCPCSDescriptionServicesAvg allowedAvg paid
88305Pathology examination of tissue using a microscope, intermediate complexity89$38$26
45385Removal of polyps or growths of large bowel using an endoscope with mechanical snare57$248$201
99213Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more24$93$71
99214Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more24$131$88
G0105Colorectal cancer screening; colonoscopy on individual at high risk16$179$179
43239Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope15$92$74
99204New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more12$170$96
43248Insertion of guide wire with dilation of esophagus using a flexible endoscope12$136$109
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes11$124$100

Taxonomy & licensure

SpecialtyCodePrimaryLicenseState
Gastroenterology Physician207RG0100X✓MD23576OR

Medicare eligibility

Part B
Yes
DME
Yes
Home health
Yes
Power mobility
Yes
Hospice
Yes

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Source: NPPES (public domain) and CMS Medicare Physician & Other Practitioners data. Not affiliated with CMS, NPPES, or any government agency.