Mark James Lloyd London, M.D.
NPI 1295032258ActiveIndividual· Surgery· Chicago, IL
Surgery (M.D.) with Musc Community Physicians, practicing in Chicago, Illinois. 223 Medicare patients in 2024, $110,291 paid; nearly all of their 398 Part D prescriptions were generic (99%). Merit Medical Systems Inc was the largest of 6 companies reporting payments in 2025, $19,862 in all, mostly consulting fees. Lists Musc Medical Center as a hospital affiliation.
Overview
| NPI | 1295032258 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Feb 26, 2011 |
| Last updated in NPPES | Feb 26, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 036.126462 | IL |
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 - General Surgery (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 223 |
|---|---|
| Services billed | 475 across 57 procedure codes |
| Paid by Medicare | $110,291 |
Part D prescriptions in 2024
| Prescriptions (claims) | 398 · 403 30-day fills |
|---|---|
| Patients | 286 |
| Total drug cost | $4,707 |
| Generic share | 99% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | General Surgery |
Medical group
- Musc Community PhysiciansCentennial, CO · 1,544 clinicians
Hospital affiliation
- Musc Medical CenterCharleston, SC
Industry payments (Open Payments)
- 2025$19,862 · 18 payments from 6 companies
- 2024$84.08 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merit Medical Systems Inc | $19,753 | 12 |
| Bard Peripheral Vascular, Inc. | $33.79 | 2 |
| Getinge USA Sales, LLC | $29.81 | 1 |
| W. L. Gore & Associates, Inc. | $16.19 | 1 |
| Stryker Corporation | $15.65 | 1 |
What the 2025 payments were for
- Consulting Fee$13,920 · 4 payments
- Travel and Lodging$4,067 · 3 payments
- Compensation for serving as faculty or as a speaker for a medical education program$1,600 · 1 payment
- Food and Beverage$274.93 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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