Juan F. Lessmann, M.D.
NPI 1861647463ActiveIndividual· General Practice· Huntington, NY
General Practice (M.D.) in Huntington, New York, licensed in NY and PA, with an NPI issued in November 2008. Mostly services rather than prescriptions: Medicare paid $40,060 for 92 patients in 2024, with only 18 Part D claims. Lists North Shore University Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1861647463 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 24, 2008 |
| Last updated in NPPES | Feb 22, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| General Practice Primary | 208D00000X | 2559201 | NY |
| Surgery | 208600000X | MD439948 | PA |
| Colon & Rectal Surgery | 208C00000X | MD439948 | PA |
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 (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 92 |
|---|---|
| Services billed | 195 across 27 procedure codes |
| Paid by Medicare | $40,060 |
Part D prescriptions in 2024
| Prescriptions (claims) | 18 · 20 30-day fills |
|---|---|
| Total drug cost | $2,851 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | General Surgery |
| Secondary specialties | Colorectal Surgery (Proctology) |
Hospital affiliations
- North Shore University HospitalManhasset, NY
- Ns/Lij Hs Huntington HospitalHuntington, NY
- Plainview HospitalPlainview, NY
Other facilities
- North Shore Home Care ChhaHome health agency · Westbury, NY
- Peconic Bay Homehealth ServicesHome health agency · Riverhead, NY
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records