Jonathan Mou Jun Shiau, M.D.
NPI 1134407166ActiveIndividual· Urology· Newport Beach, CA
Urology (M.D.) in Newport Beach, California, trained at University of California, San Diego School of Medicine (class of 2011). Their prescriptions cost Medicare Part D more than their services did: $540,659 for 4,003 claims, against $28,142 paid for services in 2024. Exact Sciences Corporation was the largest of 2 companies reporting payments in 2025, $46.48 in all, mostly food and beverage.
Overview
| NPI | 1134407166 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 25, 2011 |
| Last updated in NPPES | Mar 23, 2026 |
| Certified by provider | Mar 23, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Urology Primary | 208800000X | 143632 | CA |
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 - Urology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 107 |
|---|---|
| Services billed | 525 across 36 procedure codes |
| Paid by Medicare | $28,142 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,003 · 10,245 30-day fills |
|---|---|
| Patients | 827 |
| Total drug cost | $540,659 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Urology |
| Telehealth | Offers telehealth |
Medical groups
- Healthcare Partners Affiliates Medical GroupAnaheim, CA · 754 clinicians
- Adventist Health Physicians NetworkSaint Helena, CA · 628 clinicians
- Central Valley General HospitalHanford, CA · 88 clinicians
- Andrew Nguyen DO A Professional Medical CorporationNewport Beach, CA · 9 clinicians
Hospital affiliations
- Adventist Health HanfordHanford, CA
- Adventist Health ReedleyReedley, CA
- Memorialcare Orange Coast Medical CenterFountain Valley, CA
Industry payments (Open Payments)
- 2025$46.48 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $26.32 | 1 |
| Sumitomo Pharma America, Inc. | $20.16 | 1 |
What the 2025 payments were for
- Food and Beverage$46.48 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 24 urologists in Newport Beach · All urologists in California