npidexNPI registry + Medicare data

ALEXANDER LARSON, MD

Gastroenterology Physician · MADISON, WI

Individual Active NPI 1124349337

Medicare payment data Part B · 2024

YearBeneficiariesServicesSubmittedAllowedPaid
20243632,574$2,014,443$128,964$102,436
20233261,324$1,463,191$95,662$77,019
2022331764$1,473,357$93,017$72,859

Top procedures (2024)

HCPCSDescriptionServicesAvg allowedAvg paid
G0500Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito125$5$3
45385Removal of polyps or growths of large bowel using an endoscope with mechanical snare105$227$184
43239Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope59$71$51
99231Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes42$46$36
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes40$120$91
45380Biopsy of large bowel using a flexible endoscope34$113$80
G0105Colorectal cancer screening; colonoscopy on individual at high risk28$161$161
43248Insertion of guide wire with dilation of esophagus using a flexible endoscope24$127$95
36415Insertion of needle into vein for collection of blood sample23$8$8
99213Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more23$85$63
G0121Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk22$162$162
43264Removal of stone or debris from bile or pancreatic duct using a flexible endoscope21$217$168

Taxonomy & licensure

SpecialtyCodePrimaryLicenseState
Gastroenterology Physician207RG0100X✓66867-20WI

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.