Surya K. Challa, M.D.
NPI 1730162819ActiveIndividual· Psychiatry & Neurology, Psychiatry· Winston Salem, NC
Psychiatry & Neurology, Psychiatry (M.D.) in Winston Salem, North Carolina, licensed in NC, with an NPI issued in November 2005. Their prescriptions cost Medicare Part D more than their services did: $991,736 for 2,620 claims, against $26,269 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 10 companies reporting payments in 2025, $1,007 in all, mostly food and beverage.
Overview
| NPI | 1730162819 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 22, 2005 |
| Last updated in NPPES | Mar 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 25241 | NC |
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 (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 69 |
|---|---|
| Services billed | 404 across 8 procedure codes |
| Paid by Medicare | $26,269 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,620 · 2,854 30-day fills |
|---|---|
| Patients | 118 |
| Total drug cost | $991,736 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 1969 |
|---|---|
| Medicare specialty | Psychiatry |
| Secondary specialties | Addiction Medicine |
Industry payments (Open Payments)
- 2025$1,007 · 35 payments from 10 companies
- 2024$815.92 · 30 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $249.11 | 8 |
| Vanda Pharmaceuticals Inc. | $170.09 | 4 |
| Alkermes, Inc. | $147.91 | 7 |
| Braeburn Inc. | $125.00 | 1 |
| Otsuka America Pharmaceutical, Inc. | $78.47 | 4 |
What the 2025 payments were for
- Food and Beverage$1,007 · 35 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 122 psychiatrists in Winston Salem · All psychiatrists in North Carolina