Michael Christopher Greaser, MD
NPI 1811156979ActiveIndividual· Orthopaedic Surgery, Foot and Ankle Surgery· Bellaire, TX
Orthopaedic Surgery, Foot and Ankle Surgery (MD) in Bellaire, Texas, trained at University of Texas Medical School at Houston (class of 2008). 188 Medicare patients in 2024, $49,497 paid; nearly all of their 409 Part D prescriptions were generic (97%). Stryker Corporation was the largest of 11 companies reporting payments in 2025, $49,516 in all, mostly consulting fees.
Overview
| NPI | 1811156979 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 4, 2008 |
| Last updated in NPPES | Jul 16, 2022 |
| Certified by provider | Jul 16, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Foot and Ankle Surgery Primary | 207XX0004X | N9708 | TX |
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 - Orthopedic Surgery (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 188 |
|---|---|
| Services billed | 580 across 61 procedure codes |
| Paid by Medicare | $49,497 |
Part D prescriptions in 2024
| Prescriptions (claims) | 409 · 429 30-day fills |
|---|---|
| Patients | 136 |
| Total drug cost | $4,834 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at Houston |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Orthopedic Surgery |
Medical groups
- Ut PhysiciansHouston, TX · 1,765 clinicians
- Action Therapy Centers LimitedHouston, TX · 76 clinicians
Hospital affiliations
- Memorial Hermann - Texas Medical CenterHouston, TX
- Memorial Hermann Hospital SystemHouston, TX
- Memorial Hermann Memorial City HospitalHouston, TX
- Memorial Hermann Northeast HospitalHumble, TX
- Memorial Hermann Sugar Land HospitalSugar Land, TX
Industry payments (Open Payments)
- 2025$49,516 · 73 payments from 11 companies
- 2024$16,449 · 48 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $38,262 | 48 |
| Medartis Inc. | $9,744 | 5 |
| Treace Medical Concepts, Inc. | $390.96 | 5 |
| Medshape, Inc. | $335.27 | 4 |
| Restor3d, Inc. | $208.62 | 1 |
What the 2025 payments were for
- Consulting Fee$28,439 · 12 payments
- Travel and Lodging$9,573 · 19 payments
- Compensation for serving as faculty or as a speaker for a medical education program$8,000 · 1 payment
- Food and Beverage$3,505 · 41 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records