Mark B. Lonstein, M.D.
NPI 1891796173ActiveIndividual· Orthopaedic Surgery, Orthopaedic Surgery of the Spine· Sarasota, FL
Orthopaedic Surgery, Orthopaedic Surgery of the Spine (M.D.) in Sarasota, Florida, trained at Baylor College of Medicine (class of 1981). Mostly services rather than prescriptions: Medicare paid $110,865 for 124 patients in 2024, with only 47 Part D claims. Highridge Medical LLC reported $183.33 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1891796173 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 9, 2005 |
| Last updated in NPPES | Dec 17, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Orthopaedic Surgery of the Spine Primary | 207XS0117X | ME0053529 | FL |
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 (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 124 |
|---|---|
| Services billed | 5,718 across 32 procedure codes |
| Paid by Medicare | $110,865 |
Part D prescriptions in 2024
| Prescriptions (claims) | 47 · 67 30-day fills |
|---|---|
| Patients | 22 |
| Total drug cost | $370.79 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | Baylor College of Medicine |
|---|---|
| Graduation year | 1981 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Mark B Lonstein MD PASarasota, FL · 2 clinicians
Hospital affiliation
- Sarasota Memorial HospitalSarasota, FL
Industry payments (Open Payments)
- 2025$183.33 · 1 payment from 1 company
- 2024$19.26 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Highridge Medical LLC | $183.33 | 1 |
What the 2025 payments were for
- Food and Beverage$183.33 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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