Ran Guan, M.D., M.S
NPI 1275774192ActiveIndividual· Hospitalist· Grafton, WI
Hospitalist (M.D., M.S) with Aurora Medical Group, Inc., practicing in Grafton, Wisconsin. In 2024 Medicare paid $71,944 for 328 patients, and Part D covered 557 of their prescriptions, 87% of them generic. Lists Aurora Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1275774192 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., M.S |
| Sole proprietor | No |
| NPI issued | Mar 23, 2009 |
| Last updated in NPPES | Jun 12, 2025 |
| Certified by provider | Jun 12, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | 54599020 | WI |
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 - Internal Medicine (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 328 |
|---|---|
| Services billed | 894 across 12 procedure codes |
| Paid by Medicare | $71,944 |
Part D prescriptions in 2024
| Prescriptions (claims) | 557 · 583 30-day fills |
|---|---|
| Patients | 231 |
| Total drug cost | $27,817 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1994 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Aurora Medical Group, Inc.Milwaukee, WI · 3,813 clinicians
Hospital affiliations
- Aurora Medical CenterGrafton, WI
- Aurora Medical Center Sheboygan CountySheboygan, WI
- Aurora Memorial Hospital BurlingtonBurlington, WI
- Aurora St Lukes Medical CenterMilwaukee, WI
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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