Doctor profile · Federal record

Dr. GEOFFREY DANG-VU, M.D.

Gastroenterology Physician (CMS: GASTROENTEROLOGY) · Student in an Organized Health Care Education/Training Program · MADISON, WI

  • NPI 1548648280
  • Accepts Medicare
  • 11 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
700 S PARK ST STE A
MADISON, WI 537151830
(608) 260-2900
fax (608) 260-2977
Additional location
8701 W Watertown Plank Rd
Milwaukee, WI 532263548
(414) 805-0532

Credentials & registration

NPPES · NUCC
NPI registered
May 2015 — 11 yrs on file
Profile last updated
July 22, 2021
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Wisconsin #67415
Medicaid
WI #1548648280

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1548648280. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
548
Distinct HCPCS
10
Medicare allowed
$58,823
HCPCS Description Services Patients Avg allowed
G0500 Moderate 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 monito 132 130 $5
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 96 96 $232
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 53 50 $87
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 44 44 $124
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 44 34 $75
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk 32 32 $171
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 25 25 $101
99213 Established patient office or other outpatient visit, 20-29 minutes 23 23 $86
G0105 Colorectal cancer screening; colonoscopy on individual at high risk 19 19 $171
99204 New patient office or other outpatient visit, 45-59 minutes 18 18 $158

In context: peer comparison

Among 20 peers in this city , average services per provider: 38. This provider delivers 14× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
274
Patients
215
Total drug cost
$20,254
Drug Type Claims Patients Total cost
Gavilyte-C (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 165 164 $3,512
Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 29 29 $518
Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) Brand 22 22 $549
Omeprazole Generic 20 0 $378
Linzess (Linaclotide) Brand 15 0 $11,966
Dexlansoprazole Dr (Dexlansoprazole) Brand 12 0 $2,708
Colestipol Hcl Generic 11 0 $623