Robert Stephen Walker, MD
NPI 1639531908ActiveIndividual· Orthopaedic Surgery, Hand Surgery· Glendale, AZ
Orthopaedic Surgery, Hand Surgery (MD) in Glendale, Arizona, trained at University of Arizona College of Medicine - Phoenix (class of 2021). Mostly services rather than prescriptions: Medicare paid $176,136 for 451 patients in 2024, with only 46 Part D claims. Stryker Corporation was the largest of 8 companies reporting payments in 2025, $1,206 in all, mostly food and beverage.
Overview
| NPI | 1639531908 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 24, 2016 |
| Last updated in NPPES | Oct 12, 2026 |
| Certified by provider | Oct 12, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Hand Surgery Primary | 207XS0106X | 65804 | AZ |
| Orthopaedic Surgery | 207X00000X | 65804 | AZ |
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 (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 451 |
|---|---|
| Services billed | 3,872 across 124 procedure codes |
| Paid by Medicare | $176,136 |
Part D prescriptions in 2024
| Prescriptions (claims) | 46 · 46 30-day fills |
|---|---|
| Patients | 36 |
| Total drug cost | $23,781 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | University of Arizona College of Medicine - Phoenix |
|---|---|
| Graduation year | 2021 |
| Medicare specialty | Orthopedic Surgery |
| Telehealth | Offers telehealth |
Medical group
- Desert Orthopedics Center PLLCScottsdale, AZ · 10 clinicians
Hospital affiliations
- Abrazo Arrowhead HospitalGlendale, AZ
- Honorhealth Scottsdale Osborn Medical CenterScottsdale, AZ
- Honorhealth Scottsdale Shea Medical CenterScottsdale, AZ
- Honorhealth Scottsdale Thompson Peak Med CtrScottsdale, AZ
Industry payments (Open Payments)
- 2025$1,206 · 31 payments from 8 companies
- 2024$1,984 · 38 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $434.16 | 5 |
| Zimmer Biomet Holdings, Inc. | $332.23 | 11 |
| Smith+nephew, Inc. | $138.61 | 4 |
| Sonex Health, Inc. | $104.99 | 6 |
| Boston Scientific Corporation | $82.87 | 1 |
What the 2025 payments were for
- Food and Beverage$1,147 · 29 payments
- Travel and Lodging$58.60 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Orthopaedic Surgery, Hand Surgery providers in Glendale
- 1396735882
- 1710115027