Paul Finly Detjen, MD
NPI 1396739298ActiveIndividual· Allergy & Immunology· Kenilworth, IL
Allergy & Immunology (MD) in Kenilworth, Illinois, trained at Washington University School of Medicine (class of 1984). Their prescriptions cost Medicare Part D more than their services did: $390,800 for 831 claims, against $74,972 paid for services in 2024. Regeneron Healthcare Solutions, Inc. was the largest of 15 companies reporting payments in 2025, $1,763 in all, mostly food and beverage.
Overview
| NPI | 1396739298 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Sep 7, 2005 |
| Last updated in NPPES | May 4, 2026 |
| Certified by provider | May 4, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | 036072795 | 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 | 214 |
|---|---|
| Services billed | 5,212 across 27 procedure codes |
| Paid by Medicare | $74,972 |
Part D prescriptions in 2024
| Prescriptions (claims) | 831 · 1,483 30-day fills |
|---|---|
| Patients | 165 |
| Total drug cost | $390,800 |
| Generic share | 65% of claims |
Education and affiliations
| Medical school | Washington University School of Medicine |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Allergy/Immunology |
Hospital affiliation
Industry payments (Open Payments)
- 2025$1,763 · 89 payments from 15 companies
- 2024$1,764 · 81 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $360.30 | 14 |
| Astrazeneca Pharmaceuticals LP | $303.30 | 22 |
| Genzyme Corporation | $243.87 | 10 |
| Novartis Pharmaceuticals Corporation | $165.01 | 13 |
| Glaxosmithkline, LLC. | $157.02 | 8 |
What the 2025 payments were for
- Food and Beverage$1,756 · 88 payments
- Education$6.77 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Allergy & Immunology providers in Kenilworth
- 1366579054