Doctor profile · Federal record
Dr. Gary Griglione, MD
Gastroenterology Physician (CMS: Gastroenterology) · Gastroenterology Physician · Madison, WI
- NPI 1013931203
- Accepts Medicare
- 44 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
202 S Park St
Madison, WI 537151507
(608) 417-5454
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- January 12, 2021
- Year of graduation
- 1982 — 44 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- Wisconsin #56101 · Illinois #036074917
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1013931203. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
161
Distinct HCPCS
4
Medicare allowed
$25,802
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45380 |
Biopsy of large bowel using a flexible endoscope | 62 | 62 | $95 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 53 | 53 | $232 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 33 | 33 | $165 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 13 | 13 | $168 |
In context: peer comparison
Among 20 peers in this city , average services per provider: 38. This provider delivers 4.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
94
Patients
92
Total drug cost
$1,997
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gavilyte-C (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 94 | 92 | $1,997 |
Frequently asked questions
What is Dr. Gary Griglione's medical specialty?
Dr. Gary Griglione practices Gastroenterology Physician in Madison, WI.
Where does Dr. Gary Griglione practice?
Dr. Gary Griglione practices at 202 S Park St, Madison, WI 537151507. Office phone: 6084175454.
What is Dr. Gary Griglione's NPI?
Dr. Gary Griglione's National Provider Identifier (NPI) is 1013931203, issued by NPPES.
Does Dr. Gary Griglione accept Medicare assignment?
Yes. Dr. Gary Griglione accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gary Griglione commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Colorectal cancer screening; colonoscopy on individual at high risk (HCPCS G0105). Source: CMS Medicare Physician & Other Practitioners file.