Byung San Kwak, M.D.
NPI 1073967782ActiveIndividual· Psychiatry & Neurology, Psychiatry· Montgomery, AL
Psychiatry & Neurology, Psychiatry (M.D.) in Montgomery, Alabama, licensed in AL, with an NPI issued in April 2016. Their prescriptions cost Medicare Part D more than their services did: $483,081 for 5,415 claims, against $59,930 paid for services in 2024. Neurocrine Biosciences, Inc. was the largest of 4 companies reporting payments in 2025, $219.65 in all, mostly food and beverage.
Overview
| NPI | 1073967782 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 19, 2016 |
| Last updated in NPPES | Aug 27, 2025 |
| Certified by provider | Aug 25, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 41865 | AL |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 (AL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 222 |
|---|---|
| Services billed | 1,023 across 13 procedure codes |
| Paid by Medicare | $59,930 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,415 · 9,300 30-day fills |
|---|---|
| Patients | 458 |
| Total drug cost | $483,081 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Industry payments (Open Payments)
- 2025$219.65 · 10 payments from 4 companies
- 2024$839.01 · 48 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Neurocrine Biosciences, Inc. | $75.85 | 2 |
| Abbvie Inc. | $73.65 | 4 |
| Axsome Therapeutics, Inc. | $48.45 | 3 |
| Lundbeck LLC | $21.70 | 1 |
What the 2025 payments were for
- Food and Beverage$219.65 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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