Merveen Appu, M.D.
NPI 1194046193ActiveIndividual· Psychiatry & Neurology, Neurology with Special Qualifications in Child Neurology· San Diego, CA
Psychiatry & Neurology, Neurology with Special Qualifications in Child Neurology (M.D.) in San Diego, California, licensed in CA, with an NPI issued in June 2010. Part D covered 20 prescriptions written in 2024, 90% of them generic. Catalyst Pharmaceuticals, Inc. was the largest of 28 companies reporting payments in 2025, $3,149 in all, mostly food and beverage.
Overview
| NPI | 1194046193 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 14, 2010 |
| Last updated in NPPES | Aug 25, 2026 |
| Certified by provider | Aug 25, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology with Special Qualifications in Child Neurology Primary | 2084N0402X | A148984 | CA |
| Psychiatry & Neurology, Epilepsy | 2084E0001X | A148984 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Neurology (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 20 · 20 30-day fills |
|---|---|
| Total drug cost | $4,430 |
| Generic share | 90% of claims |
Industry payments (Open Payments)
- 2025$3,149 · 128 payments from 28 companies
- 2024$2,202 · 81 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Catalyst Pharmaceuticals, Inc. | $426.24 | 16 |
| Ucb, Inc. | $423.75 | 16 |
| Aucta Pharmaceuticals, Inc. | $317.20 | 13 |
| Springworks Therapeutics, Inc. | $236.70 | 14 |
| Alexion Pharmaceuticals, Inc. | $227.69 | 9 |
What the 2025 payments were for
- Food and Beverage$3,149 · 128 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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