Philip Y. Sun, MD
NPI 1457883472ActiveIndividual· Psychiatry & Neurology, Neurocritical Care· Saint Louis, MO
Psychiatry & Neurology, Neurocritical Care (MD) in Saint Louis, Missouri, trained at Mayo Medical School (class of 2017). Mostly services rather than prescriptions: Medicare paid $16,011 for 70 patients in 2024, with only 20 Part D claims. Haemonetics Corporation reported $15.12 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1457883472 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 29, 2017 |
| Last updated in NPPES | May 11, 2026 |
| Certified by provider | May 11, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurocritical Care Primary | 2084A2900X | 036.180087 | IL |
| Psychiatry & Neurology, Neurocritical Care | 2084A2900X | 2024015157 | MO |
| Psychiatry & Neurology, Neurology | 2084N0400X | 2024015157 | MO |
| Psychiatry & Neurology, Vascular Neurology | 2084V0102X | 2024015157 | MO |
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 - Neurology (IL); Practitioner - Critical Care (Intensivists) (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 70 |
|---|---|
| Services billed | 148 across 10 procedure codes |
| Paid by Medicare | $16,011 |
Part D prescriptions in 2024
| Prescriptions (claims) | 20 · 41 30-day fills |
|---|---|
| Total drug cost | $6,837 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | Mayo Medical School |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Critical Care (Intensivists) |
| Secondary specialties | Neurology |
Medical groups
- Ssm Health Care GroupSaint Louis, MO · 940 clinicians
- Siu Physicians and Surgeons IncSpringfield, IL · 314 clinicians
Hospital affiliations
- Memorial Medical CenterSpringfield, IL
- Ssm Health Saint Louis University HospitalSaint Louis, MO
Industry payments (Open Payments)
- 2025$15.12 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Haemonetics Corporation | $15.12 | 1 |
What the 2025 payments were for
- Food and Beverage$15.12 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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