John R. Barker, M.D.
NPI 1013919117ActiveIndividual· Orthopaedic Surgery· Lone Tree, CO
Orthopaedic Surgery (M.D.) in Lone Tree, Colorado, trained at Southern Illinois University School of Medicine (class of 1995). 227 Medicare patients in 2024, $183,715 paid; nearly all of their 381 Part D prescriptions were generic (98%). Highridge Medical LLC was the largest of 7 companies reporting payments in 2025, $969.41 in all, mostly food and beverage.
Overview
| NPI | 1013919117 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 10, 2005 |
| Last updated in NPPES | Dec 27, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 38445 | CO |
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 (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 227 |
|---|---|
| Services billed | 800 across 55 procedure codes |
| Paid by Medicare | $183,715 |
Part D prescriptions in 2024
| Prescriptions (claims) | 381 · 396 30-day fills |
|---|---|
| Patients | 135 |
| Total drug cost | $7,947 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | Southern Illinois University School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Healthone Clinic Services-Surgical Specialties LLCLone Tree, CO · 41 clinicians
Hospital affiliations
- Arkansas Valley Regional Medical CenterLajuna, CO
- Lincoln Health HospitalHugo, CO
- Sky Ridge Medical CenterLone Tree, CO
- The Medical Center of Aurora & South HospitalAurora, CO
Industry payments (Open Payments)
- 2025$969.41 · 12 payments from 7 companies
- 2024$2,239 · 26 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Highridge Medical LLC | $568.32 | 3 |
| Ebi, LLC | $156.63 | 1 |
| Stryker Corporation | $82.36 | 2 |
| Globus Medical, Inc. | $56.22 | 2 |
| Providence Medical Technology, Inc. | $51.89 | 1 |
What the 2025 payments were for
- Food and Beverage$969.41 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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