Mark E. Kaplan, MD
NPI 1861591661ActiveIndividual· Allergy & Immunology· Gurnee, IL
Allergy & Immunology (MD) in Gurnee, Illinois, licensed in IL, with an NPI issued in September 2006. Their prescriptions cost Medicare Part D more than their services did: $416,461 for 1,246 claims, against $104,310 paid for services in 2024. Ars Pharmaceuticals Operations, Inc. reported $88.84 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1861591661 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Sep 21, 2006 |
| Last updated in NPPES | Sep 9, 2022 |
| Certified by provider | Sep 9, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | 036077766 | IL |
| Allergy & Immunology, Allergy | 207KA0200X | 036077766 | IL |
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 - Allergy/Immunology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 182 |
|---|---|
| Services billed | 6,777 across 30 procedure codes |
| Paid by Medicare | $104,310 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,246 · 2,017 30-day fills |
|---|---|
| Patients | 204 |
| Total drug cost | $416,461 |
| Generic share | 67% of claims |
Industry payments (Open Payments)
- 2025$88.84 · 1 payment from 1 company
- 2024$2,074 · 95 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ars Pharmaceuticals Operations, Inc. | $88.84 | 1 |
What the 2025 payments were for
- Food and Beverage$88.84 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Allergy & Immunology providers in Gurnee
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