Nicole Marie Griglione, M.D.
NPI 1568649358ActiveIndividual· Internal Medicine, Gastroenterology· Milwaukee, WI
Internal Medicine, Gastroenterology (M.D.) with Gi Associates LLC and 1 other group, practicing in Milwaukee, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $738,942 for 2,236 claims, against $63,381 paid for services in 2024. Conmed Corporation reported $23.66 in payments in 2025, mostly food and beverage. Lists Ascension Se Wisconsin Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1568649358 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jan 24, 2008 |
| Last updated in NPPES | Jan 26, 2026 |
| Certified by provider | Jan 26, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 61094-20 | WI |
| Internal Medicine | 207R00000X | 002655 | GA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 335 |
|---|---|
| Services billed | 640 across 46 procedure codes |
| Paid by Medicare | $63,381 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,236 · 4,241 30-day fills |
|---|---|
| Patients | 696 |
| Total drug cost | $738,942 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical groups
- Gi Associates LLCMilwaukee, WI · 55 clinicians
- Gastroenterology Specialists SCWauwatosa, WI · 30 clinicians
Hospital affiliations
- Ascension Se Wisconsin HospitalMilwaukee, WI
- Oconomowoc Memorial HospitalOconomowoc, WI
- Waukesha Memorial HospitalWaukesha, WI
Industry payments (Open Payments)
- 2025$23.66 · 1 payment from 1 company
- 2024$30.40 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Conmed Corporation | $23.66 | 1 |
What the 2025 payments were for
- Food and Beverage$23.66 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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