npidexNPI registry + Medicare data

WILLIAM ERGEN, M.D.

Gastroenterology Physician · KNOXVILLE, TN

Individual Active NPI 1710249529

Medicare payment data Part B · 2024

YearBeneficiariesServicesSubmittedAllowedPaid
202443024,637$1,640,104$611,607$484,478
202345619,538$1,310,635$478,530$378,382
202239021,661$1,310,698$525,270$414,645

Top procedures (2024)

HCPCSDescriptionServicesAvg allowedAvg paid
J3380Injection, vedolizumab, intravenous, 1 mg21,900$22$17
45385Removal of polyps or growths of large bowel using an endoscope with mechanical snare188$213$176
99213Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more152$81$53
43239Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope105$90$71
96413Administration of chemotherapy into vein, 1 hour or less95$110$86
45380Biopsy of large bowel using a flexible endoscope57$85$68
99203New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more55$99$55
G0105Colorectal cancer screening; colonoscopy on individual at high risk35$148$148
43450Dilation of esophagus20$34$27
99214Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more15$114$77
45331Biopsy of lower large bowel using a flexible endoscope12$48$38
91110Imaging of digestive tract done from the inside of the digestive tract11$595$469

Taxonomy & licensure

SpecialtyCodePrimaryLicenseState
Gastroenterology Physician207RG0100X✓51868TN

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.