Mark David Lorenze, M.D.
NPI 1336107176ActiveIndividual· Orthopaedic Surgery· Essex, CT
Orthopaedic Surgery (M.D.) in Essex, Connecticut, trained at Tufts University School of Medicine (class of 1988). 332 Medicare patients in 2024, $109,428 paid; nearly all of their 395 Part D prescriptions were generic (99%). Vertex Pharmaceuticals Incorporated was the largest of 2 companies reporting payments in 2025, $80.43 in all, mostly food and beverage.
Overview
| NPI | 1336107176 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 2, 2006 |
| Last updated in NPPES | May 12, 2026 |
| Certified by provider | May 12, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 36697 | CT |
| Orthopaedic Surgery, Hand Surgery | 207XS0106X | 36697 | CT |
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 (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 332 |
|---|---|
| Services billed | 1,953 across 64 procedure codes |
| Paid by Medicare | $109,428 |
Part D prescriptions in 2024
| Prescriptions (claims) | 395 · 414 30-day fills |
|---|---|
| Patients | 199 |
| Total drug cost | $1,566 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Connecticut Orthopaedic Specialists PCFairfield, CT · 180 clinicians
Hospital affiliation
- Middlesex HospitalMiddletown, CT
Other facilities
- Gaylord Hospital IncLong-term care hospital · Wallingford, CT
Industry payments (Open Payments)
- 2025$80.43 · 3 payments from 2 companies
- 2024$135.00 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vertex Pharmaceuticals Incorporated | $60.09 | 2 |
| Depuy Synthes Sales Inc. | $20.34 | 1 |
What the 2025 payments were for
- Food and Beverage$80.43 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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