John J. Yang, MD
NPI 1316979552ActiveIndividual· Family Medicine· Mequon, WI
Family Medicine (MD) in Mequon, Wisconsin, trained at University of Washington School of Medicine (class of 1994). Their prescriptions cost Medicare Part D more than their services did: $389,016 for 6,304 claims, against $62,367 paid for services in 2024.
Overview
| NPI | 1316979552 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 7, 2006 |
| Last updated in NPPES | Apr 15, 2024 |
| Certified by provider | Apr 15, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 37090 | 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 - Family Practice (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 226 |
|---|---|
| Services billed | 819 across 31 procedure codes |
| Paid by Medicare | $62,367 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,304 · 14,651 30-day fills |
|---|---|
| Patients | 557 |
| Total drug cost | $389,016 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of Washington School of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Family Practice |
Medical group
- Aurora Advanced Healthcare, Inc.Milwaukee, WI · 1,124 clinicians
Hospital affiliation
- Aurora Medical CenterGrafton, WI
Other facilities
- Aurora at HomeHome health agency · Milwaukee, 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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All 29 family medicine physicians in Mequon · All family medicine physicians in Wisconsin