Daniel T.L. Tan, M.D.
NPI 1811193766ActiveIndividual· Psychiatry & Neurology, Psychiatry· Houston, TX
Psychiatry & Neurology, Psychiatry (M.D.) in Houston, Texas, trained at Oral Roberts University School of Medicine (class of 1988). Part D covered 494 prescriptions written in 2024, 88% of them generic. Supernus Pharmaceuticals, Inc. was the largest of 16 companies reporting payments in 2025, $36,444 in all, mostly honoraria.
Overview
| NPI | 1811193766 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 26, 2007 |
| Last updated in NPPES | Aug 29, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | J3241 | TX |
| Psychiatry & Neurology, Child & Adolescent Psychiatry | 2084P0804X | J3241 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Psychiatry (TX) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 494 · 739 30-day fills |
|---|---|
| Patients | 33 |
| Total drug cost | $187,771 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Oral Roberts University School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Psychiatry |
Medical group
- Physicians Referral ServiceHouston, TX · 2,765 clinicians
Industry payments (Open Payments)
- 2025$36,444 · 252 payments from 16 companies
- 2024$34,640 · 236 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Supernus Pharmaceuticals, Inc. | $28,140 | 59 |
| Noven Therapeutics, LLC | $3,072 | 11 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $837.31 | 34 |
| E.R. Squibb & Sons, L.L.C. | $693.94 | 19 |
| Otsuka America Pharmaceutical, Inc. | $669.67 | 22 |
What the 2025 payments were for
- Honoraria$21,600 · 9 payments
- Food and Beverage$6,796 · 229 payments
- Travel and Lodging$5,186 · 10 payments
- Compensation for serving as faculty or as a speaker for a medical education program$2,863 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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