Charles Bader Kahn, M.D.
NPI 1881787505ActiveIndividual· Internal Medicine, Rheumatology· Glenview, IL
Internal Medicine, Rheumatology (M.D.) in Glenview, Illinois, trained at Jefferson Medical College of Thomas Jefferson University (class of 1963). Their prescriptions cost Medicare Part D more than their services did: $1,018,236 for 164 claims, against $7,366 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 16 companies reporting payments in 2025, $1,409 in all, mostly food and beverage.
Overview
| NPI | 1881787505 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 2, 2006 |
| Last updated in NPPES | May 28, 2026 |
| Certified by provider | May 28, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | ME0012327 | FL |
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 - Rheumatology (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 24 |
|---|---|
| Services billed | 555 across 10 procedure codes |
| Paid by Medicare | $7,366 |
Part D prescriptions in 2024
| Prescriptions (claims) | 164 · 316 30-day fills |
|---|---|
| Patients | 43 |
| Total drug cost | $1,018,236 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | Jefferson Medical College of Thomas Jefferson University |
|---|---|
| Graduation year | 1963 |
| Medicare specialty | Rheumatology |
Medical group
- Coastal Rheumatology, LLCFt Lauderdale, FL · 5 clinicians
Hospital affiliation
- Memorial Regional HospitalHollywood, FL
Industry payments (Open Payments)
- 2025$1,409 · 70 payments from 16 companies
- 2024$759.13 · 35 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $233.80 | 11 |
| Abbvie Inc. | $221.61 | 10 |
| Ucb, Inc. | $192.48 | 14 |
| Mallinckrodt Hospital Products Inc. | $163.43 | 9 |
| Janssen Biotech, Inc. | $163.31 | 8 |
What the 2025 payments were for
- Food and Beverage$1,354 · 69 payments
- Education$54.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Rheumatology providers in Glenview
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