Guillermo Garcia-Manero, M.D.
NPI 1013078294ActiveIndividual· Internal Medicine, Hematology & Oncology· Houston, TX
Internal Medicine, Hematology & Oncology (M.D.) with Physicians Referral Service, practicing in Houston, Texas. Their prescriptions cost Medicare Part D more than their services did: $607,734 for 195 claims, against $90,512 paid for services in 2024. Geron Corporation was the largest of 10 companies reporting payments in 2025, $46,274 in all, mostly consulting fees.
Overview
| NPI | 1013078294 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 12, 2006 |
| Last updated in NPPES | Oct 5, 2026 |
| Certified by provider | Oct 5, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | K9276 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 207 |
|---|---|
| Services billed | 1,170 across 18 procedure codes |
| Paid by Medicare | $90,512 |
Part D prescriptions in 2024
| Prescriptions (claims) | 195 · 199 30-day fills |
|---|---|
| Patients | 62 |
| Total drug cost | $607,734 |
| Generic share | 64% of claims |
Education and affiliations
| Graduation year | 1991 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Physicians Referral ServiceHouston, TX · 2,765 clinicians
Industry payments (Open Payments)
- 2025$46,274 · 30 payments from 10 companies
- 2024$93,048 · 60 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Geron Corporation | $16,316 | 13 |
| E.R. Squibb & Sons, L.L.C. | $10,505 | 3 |
| Celgene Corporation | $8,265 | 3 |
| Novartis Pharmaceuticals Corporation | $3,400 | 1 |
| Takeda Pharmaceuticals U.S.A., Inc. | $3,097 | 2 |
What the 2025 payments were for
- Consulting Fee$32,810 · 12 payments
- Travel and Lodging$8,725 · 3 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$3,656 · 2 payments
- Food and Beverage$652.65 · 10 payments
- Compensation for serving as faculty or as a speaker for a medical education program$407.61 · 2 payments
- Education$23.10 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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