Charles L. Yen, M.D.
NPI 1215930268ActiveIndividual· Internal Medicine, Hematology & Oncology· Houston, TX
Internal Medicine, Hematology & Oncology (M.D.) in Houston, Texas, trained at University of Texas Medical Branch at Galveston (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $6,562,853 for 2,047 claims, against $2,184,665 paid for services in 2024. Karyopharm Therapeutics Inc. was the largest of 60 companies reporting payments in 2025, $13,695 in all, mostly consulting fees.
Overview
| NPI | 1215930268 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 23, 2005 |
| Last updated in NPPES | Nov 25, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | J5662 | TX |
| Specialist | 174400000X | J5662 | 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 - Hematology/Oncology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 357 |
|---|---|
| Services billed | 144,182 across 118 procedure codes |
| Paid by Medicare | $2,184,665 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,047 · 2,799 30-day fills |
|---|---|
| Patients | 306 |
| Total drug cost | $6,562,853 |
| Generic share | 72% of claims |
Education and affiliations
| Medical school | University of Texas Medical Branch at Galveston |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Medical Oncology |
Medical group
- Texas Oncology PAPlano, TX · 1,014 clinicians
Hospital affiliations
- HCA Houston Healthcare KingwoodKingwood, TX
- HCA Houston Healthcare NorthwestHouston, TX
- Houston Methodist Willowbrook HospitalHouston, TX
- Memorial Hermann - Texas Medical CenterHouston, TX
- Tops Surgical Specialty HospitalHouston, TX
Industry payments (Open Payments)
- 2025$13,695 · 280 payments from 60 companies
- 2024$10,021 · 322 payments from 56 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Karyopharm Therapeutics Inc. | $2,498 | 7 |
| E.R. Squibb & Sons, L.L.C. | $2,173 | 10 |
| Astrazeneca Pharmaceuticals LP | $1,852 | 21 |
| Janssen Biotech, Inc. | $938.65 | 20 |
| Janssen Scientific Affairs, LLC | $880.00 | 1 |
What the 2025 payments were for
- Consulting Fee$7,153 · 5 payments
- Food and Beverage$6,334 · 269 payments
- Education$208.97 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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