GARY R GRIGLIONE (MD) – Gastroenterology Physician, NPI 1013931203
Gastroenterology Physician
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Profile Insights
NPPES metrics only — not quality of care.
382 GASTROENTEROLOGY in WI
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Provider Addresses for GARY R GRIGLIONE (MD)
UnityPoint Health - Meriter, 202, South Park Street, Greenbush, Bowens Addition, Madison, Dane County, Wisconsin, 53715, United States
MADISON, WI 537151507
Phone: (608) 417-5454
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
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Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2012-03-12
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20120312000449 | I | Gastroenterology | WI | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 45380 | Biopsy of large bowel using a flexible endoscope | 62 | 62 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 53 | 53 | $0 |
| G0105 | Colorectal cancer screening; colonoscopy on individual at high risk | 33 | 33 | $0 |
| G0121 | Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 13 | 13 | $0 |
Insurance plans in this area (ZIP 53715)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | WI | 43235 | Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope | 21 | 18 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| G A S T R O E N T E R O L O G Y | IL | |
| Nurse Practitioner | IL | |
| Clinical Psychologist | IL | |
| - | FL | |
| Nurse Practitioner | IL | |
| P O D I A T R Y | IL | |
| Hospitalist, Family Practice | TX | |
| Diagnostic Radiology | NY | |
| - | IL | |
| - | IL |
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