James G. Lahti, M.D.
NPI 1689783086ActiveIndividual· Dermatology, MOHS-Micrographic Surgery· Northbrook, IL
Dermatology, MOHS-Micrographic Surgery (M.D.) in Northbrook, Illinois, trained at Northwestern University Feinberg Medical School (class of 1994). 1,389 Medicare patients in 2024, $1,534,500 paid; nearly all of their 934 Part D prescriptions were generic (98%). Regeneron Healthcare Solutions, Inc. was the largest of 3 companies reporting payments in 2025, $69.22 in all, mostly food and beverage.
Overview
| NPI | 1689783086 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 30, 2006 |
| Last updated in NPPES | Sep 11, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology, MOHS-Micrographic Surgery Primary | 207ND0101X | — | IL |
| Dermatology | 207N00000X | — | 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 - Dermatology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,389 |
|---|---|
| Services billed | 10,217 across 119 procedure codes |
| Paid by Medicare | $1,534,500 |
Part D prescriptions in 2024
| Prescriptions (claims) | 934 · 937 30-day fills |
|---|---|
| Patients | 542 |
| Total drug cost | $50,396 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Dermatology |
Medical group
- Dermatology Partners of the North Shore LLCNorthbrook, IL · 12 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$69.22 · 3 payments from 3 companies
- 2024$183.88 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $28.41 | 1 |
| Mimedx Group, Inc. | $26.12 | 1 |
| Galderma Laboratories, L.P. | $14.69 | 1 |
What the 2025 payments were for
- Food and Beverage$69.22 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Dermatology, MOHS-Micrographic Surgery providers in Northbrook
- 1659683993
All Dermatology, MOHS-Micrographic Surgery providers in Illinois