Ahmad A. Hajj, MD
NPI 1043287345ActiveIndividual· Orthopaedic Surgery· Santa Ana, CA
Orthopaedic Surgery (MD) in Santa Ana, California, licensed in CA, with an NPI issued in March 2006. 64 Medicare patients in 2024, $27,059 paid; all of their 55 Part D prescriptions were generic. Stryker Corporation was the largest of 3 companies reporting payments in 2025, $140.56 in all, mostly food and beverage. Lists Anaheim Global Medical Center as a hospital affiliation.
Overview
| NPI | 1043287345 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 6, 2006 |
| Last updated in NPPES | May 22, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | C40971 | CA |
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 - Orthopedic Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 64 |
|---|---|
| Services billed | 108 across 29 procedure codes |
| Paid by Medicare | $27,059 |
Part D prescriptions in 2024
| Prescriptions (claims) | 55 · 67 30-day fills |
|---|---|
| Patients | 21 |
| Total drug cost | $849.49 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 1974 |
|---|---|
| Medicare specialty | Orthopedic Surgery |
Hospital affiliation
- Anaheim Global Medical CenterAnaheim, CA
Industry payments (Open Payments)
- 2025$140.56 · 4 payments from 3 companies
- 2024$6,087 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $77.02 | 2 |
| Dynasplint Systems Inc. | $43.90 | 1 |
| Organogenesis Inc. | $19.64 | 1 |
What the 2025 payments were for
- Food and Beverage$140.56 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Orthopaedic Surgery providers in Santa Ana
- 1306274923
- 1982765798
- 1427362375
- 1710190228
- 1861128001
- 1336318138
- 1487809661
- 1639590185
- 1790175156
- 1366643082
- 1194343855
- 1871608935