Philip Joseph Muller, D.O.
NPI 1891756128ActiveIndividual· Psychiatry & Neurology, Psychiatry· Sioux City, IA
Psychiatry & Neurology, Psychiatry (D.O.) in Sioux City, Iowa, trained at Des Moines University of Osteopathic Medicine and Health Sciences (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $481,751 for 3,347 claims, against $23,220 paid for services in 2024. Vanda Pharmaceuticals Inc. was the largest of 17 companies reporting payments in 2025, $1,724 in all, mostly food and beverage.
Overview
| NPI | 1891756128 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Mar 28, 2006 |
| Last updated in NPPES | Dec 21, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 03099 | 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 | 122 |
|---|---|
| Services billed | 327 across 7 procedure codes |
| Paid by Medicare | $23,220 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,347 · 3,756 30-day fills |
|---|---|
| Patients | 197 |
| Total drug cost | $481,751 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Des Moines University of Osteopathic Medicine and Health Sciences |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Psychiatry |
Medical group
- Associates for Psychiatric Services PCSioux City, IA · 6 clinicians
Industry payments (Open Payments)
- 2025$1,724 · 103 payments from 17 companies
- 2024$1,002 · 52 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vanda Pharmaceuticals Inc. | $340.55 | 16 |
| Otsuka America Pharmaceutical, Inc. | $286.55 | 16 |
| E.R. Squibb & Sons, L.L.C. | $175.98 | 14 |
| Alkermes, Inc. | $169.06 | 8 |
| Lundbeck LLC | $150.36 | 7 |
What the 2025 payments were for
- Food and Beverage$1,723 · 102 payments
- Education$1.20 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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