Doctor profile · Federal record

Dr. ROBERT LAPP, M.D.

Gastroenterology Physician (CMS: GASTROENTEROLOGY) · Student in an Organized Health Care Education/Training Program · Internal Medicine Physician · SIOUX FALLS, SD

  • NPI 1588829436
  • Accepts Medicare
  • 18 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
6100 S LOUISE AVE STE 3100
SIOUX FALLS, SD 571086021
(605) 504-1400
Additional location
1417 S. Cliff Ave., Ste. 300
Sioux Falls, SD 571051062
(605) 322-8630
fax (605) 322-8631
Mailing address
1417 S. CLIFF AVE., STE. 300
SIOUX FALLS, SD 571051062

Credentials & registration

NPPES · NUCC
NPI registered
July 2008 — 18 yrs on file
Profile last updated
October 31, 2019
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Michigan #4301105662

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1588829436. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,385
Distinct HCPCS
10
Medicare allowed
$172,697
HCPCS Description Services Patients Avg allowed
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 298 269 $69
45380 Biopsy of large bowel using a flexible endoscope 284 279 $127
99203 New patient office or other outpatient visit, 30-44 minutes 134 134 $78
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 113 112 $233
43237 Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth 67 67 $138
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 59 57 $104
74328 Review by radiologist of image from tube placement into bile duct using an endoscope 59 44 $22
43249 Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm 57 44 $122
43264 Removal of stone or debris from bile or pancreatic duct using a flexible endoscope 50 41 $81
43238 Ultrasound guided needle aspiration or biopsy of esophagus using a flexible endoscope 47 42 $200

In context: peer comparison

Among 11 peers in this city , average services per provider: 86. This provider delivers 16× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
971
Patients
806
Total drug cost
$17,224
Drug Type Claims Patients Total cost
Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) Brand 365 347 $10,031
Ondansetron Hcl Generic 219 210 $305
Omeprazole Generic 185 88 $1,824
Ondansetron Odt (Ondansetron) Brand 98 96 $180
Pantoprazole Sodium Generic 24 12 $378
Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 23 23 $506
Gavilyte-C (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 19 19 $397
Budesonide Dr (Budesonide) Brand 15 0 $2,717
Levofloxacin Generic 12 11 $55
Sucralfate Generic 11 0 $832

Hospital affiliations

CMS Hospital Compare