Evan Ouyang, MD
NPI 1477848190ActiveIndividual· Psychiatry & Neurology, Psychiatry· Iowa City, IA
Psychiatry & Neurology, Psychiatry (MD) in Iowa City, Iowa, trained at University of Iowa, Rj & L Carver College of Medicine (class of 2009). 54 Medicare patients in 2024, $17,980 paid; nearly all of their 120 Part D prescriptions were generic (93%). Otsuka America Pharmaceutical, Inc. was the largest of 9 companies reporting payments in 2025, $419.41 in all, mostly food and beverage.
Overview
| NPI | 1477848190 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 10, 2011 |
| Last updated in NPPES | Jun 10, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | R-9190 | IA |
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 - Psychiatry (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 54 |
|---|---|
| Services billed | 380 across 9 procedure codes |
| Paid by Medicare | $17,980 |
Part D prescriptions in 2024
| Prescriptions (claims) | 120 · 122 30-day fills |
|---|---|
| Patients | 25 |
| Total drug cost | $9,467 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | University of Iowa, Rj & L Carver College of Medicine |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Psychiatry |
Medical group
- St Lukes Methodist HospitalCedar Rapids, IA · 82 clinicians
Hospital affiliation
- St Lukes HospitalCedar Rapids, IA
Industry payments (Open Payments)
- 2025$419.41 · 20 payments from 9 companies
- 2024$512.58 · 24 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $89.91 | 4 |
| E.R. Squibb & Sons, L.L.C. | $86.75 | 5 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $77.05 | 3 |
| Janssen Pharmaceuticals, Inc | $35.95 | 2 |
| Abbvie Inc. | $35.90 | 2 |
What the 2025 payments were for
- Food and Beverage$419.41 · 20 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 150 psychiatrists in Iowa City · All psychiatrists in Iowa