Doctor profile · Federal record

Dr. JASON GONZAGA, M.D.

Gastroenterology Physician (CMS: GASTROENTEROLOGY) · MADISON, WI

  • NPI 1710026430
  • Accepts Medicare
  • 20 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
700 S PARK ST
MADISON, WI 537151830
(608) 260-2900
fax (608) 260-2977

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
November 17, 2020
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Wisconsin #51710-20
Medicaid
WI #1710026430

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1710026430. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
794
Distinct HCPCS
10
Medicare allowed
$81,234
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 190 187 $5
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 126 125 $235
45380 Biopsy of large bowel using a flexible endoscope 115 115 $110
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 56 42 $75
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 53 52 $79
99214 Established patient office or other outpatient visit, 30-39 minutes 41 33 $122
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 39 39 $165
36415 Insertion of needle into vein for collection of blood sample 35 16 $8
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 29 29 $98
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk 28 28 $165

In context: peer comparison

Among 20 peers in this city , average services per provider: 38. This provider delivers 21× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
689
Patients
407
Total drug cost
$181,391
Drug Type Claims Patients Total cost
Gavilyte-C (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 237 234 $5,108
Omeprazole Generic 125 41 $2,951
Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 79 77 $1,472
Pantoprazole Sodium Generic 44 18 $1,329
Azathioprine Generic 43 0 $2,086
Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) Brand 26 25 $670
Motegrity (Prucalopride Succinate) Brand 23 0 $11,881
Mesalamine Generic 19 0 $15,427
Linzess (Linaclotide) Brand 17 0 $24,899
Sucralfate Generic 14 0 $1,008