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 Madison Gastroenterology Physician, 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

Frequently asked questions

Auto-generated from federal data
What is Dr. Jason Gonzaga's medical specialty?
Dr. Jason Gonzaga practices Gastroenterology Physician in Madison, WI.
Where does Dr. Jason Gonzaga practice?
Dr. Jason Gonzaga practices at 700 S Park St, Madison, WI 537151830. Office phone: 6082602900.
What is Dr. Jason Gonzaga's NPI?
Dr. Jason Gonzaga's National Provider Identifier (NPI) is 1710026430, issued by NPPES.
Does Dr. Jason Gonzaga accept Medicare assignment?
Yes. Dr. Jason Gonzaga accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jason Gonzaga commonly perform?
Top Medicare-reported procedures in 2023: 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 (HCPCS G0500); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.