Efrem Michael Cox, MD
NPI 1841581527ActiveIndividual· Neurological Surgery· Las Vegas, NV
Neurological Surgery (MD) in Las Vegas, Nevada, trained at University of Iowa, Rj & L Carver College of Medicine (class of 2011). 226 Medicare patients in 2024, $61,435 paid; all of their 611 Part D prescriptions were generic. Depuy Synthes Sales Inc. was the largest of 6 companies reporting payments in 2025, $2,376 in all, mostly food and beverage.
Overview
| NPI | 1841581527 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 28, 2011 |
| Last updated in NPPES | Feb 12, 2020 |
| Certified by provider | Feb 12, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | 19177 | NV |
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 - Neurosurgery (AZ); Practitioner - Neurosurgery (NV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 226 |
|---|---|
| Services billed | 351 across 39 procedure codes |
| Paid by Medicare | $61,435 |
Part D prescriptions in 2024
| Prescriptions (claims) | 611 · 688 30-day fills |
|---|---|
| Patients | 162 |
| Total drug cost | $4,293 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | University of Iowa, Rj & L Carver College of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Neurosurgery |
Medical group
- Duke Forage Anson Neurosurgical LLPHenderson, NV · 9 clinicians
Hospital affiliations
- Saint Rose Dominican Hospitals - Siena CampusHenderson, NV
- Southern Hills Hospital and Medical CenterLas Vegas, NV
- Spring Valley Hospital Medical CenterLas Vegas, NV
- Sunrise Hospital and Medical CenterLas Vegas, NV
- University Medical CenterLas Vegas, NV
Other facilities
- Active Home Healthcare LLCHome health agency · Las Vegas, NV
Industry payments (Open Payments)
- 2025$2,376 · 92 payments from 6 companies
- 2024$4,556 · 83 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Depuy Synthes Sales Inc. | $1,815 | 76 |
| Providence Medical Technology, Inc. | $197.84 | 10 |
| Aesculap, Inc. | $169.15 | 2 |
| Stryker Corporation | $168.43 | 2 |
| Boston Scientific Corporation | $19.00 | 1 |
What the 2025 payments were for
- Food and Beverage$2,376 · 92 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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