npidexNPI registry + Medicare data

AARON GREENSPAN, MD

Gastroenterology Physician · SAINT LOUIS, MO

Individual Active NPI 1558382911

Medicare payment data Part B · 2024

YearBeneficiariesServicesSubmittedAllowedPaid
2024211350$195,731$44,891$33,112
2023342597$212,551$72,066$53,379
2022498860$313,821$108,766$82,368

Top procedures (2024)

HCPCSDescriptionServicesAvg allowedAvg paid
45378Diagnostic exam of large bowel using a flexible endoscope41$166$116
99213Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more41$84$44
45380Biopsy of large bowel using a flexible endoscope37$129$103
45385Removal of polyps or growths of large bowel using an endoscope with mechanical snare30$237$187
99231Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes26$46$34
43239Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope22$95$64
43235Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope21$85$59
43450Dilation of esophagus12$40$27
43249Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm12$105$73
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes12$128$101

Taxonomy & licensure

SpecialtyCodePrimaryLicenseState
Gastroenterology Physician207RG0100X✓104978MO

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.