Michelle Tung Kwok, M.D.
Opted out of Medicare from January 2019 to January 2027. Psychiatry & Neurology, Psychiatry (M.D.) in San Mateo, California, licensed in CA, with an NPI issued in November 2006. Part D covered 985 prescriptions written in 2024, 98% of them generic. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 9 companies reporting payments in 2025, $1,735 in all, mostly food and beverage.
Overview
| NPI | 1104905959 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Nov 3, 2006 |
| Last updated in NPPES | Apr 4, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | A84230 | CA |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Jan 1, 2019 – Jan 1, 2027 |
| Can order and refer | Yes |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Part D prescriptions in 2024
| Prescriptions (claims) | 985 · 1,746 30-day fills |
|---|---|
| Patients | 81 |
| Total drug cost | $58,876 |
| Generic share | 98% of claims |
Industry payments (Open Payments)
- 2025$1,735 · 68 payments from 9 companies
- 2024$1,128 · 50 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $446.12 | 14 |
| Axsome Therapeutics, Inc. | $427.79 | 14 |
| Abbvie Inc. | $400.50 | 23 |
| Lundbeck LLC | $172.87 | 6 |
| Otsuka America Pharmaceutical, Inc. | $87.42 | 3 |
What the 2025 payments were for
- Food and Beverage$1,735 · 68 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 102 psychiatrists in San Mateo · All psychiatrists in California