Nathan M. Kakish, MD
NPI 1518975309ActiveIndividual· Internal Medicine· West Dundee, IL
Internal Medicine (MD) with Northwestern Medical Faculty Foundation and 1 other group, practicing in West Dundee, Illinois. Their prescriptions cost Medicare Part D more than their services did: $901,954 for 3,853 claims, against $82,770 paid for services in 2024. Amgen Inc. was the largest of 9 companies reporting payments in 2025, $2,786 in all, mostly speaking and faculty fees. Lists Northwestern Lake Forest Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1518975309 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 4, 2006 |
| Last updated in NPPES | Sep 14, 2020 |
| Certified by provider | Sep 14, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036-116194 | IL |
| Pediatrics | 208000000X | 036-116194 | 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 - Internal Medicine (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 193 |
|---|---|
| Services billed | 1,915 across 52 procedure codes |
| Paid by Medicare | $82,770 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,853 · 9,451 30-day fills |
|---|---|
| Patients | 273 |
| Total drug cost | $901,954 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Pediatric Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
- Central Dupage Physician GroupGeneva, IL · 1,080 clinicians
Hospital affiliations
- Northwestern Lake Forest HospitalLake Forest, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Northwestern Medicine Delnor Community HospitalGeneva, IL
- Northwestern Medicine McHenryMcHenry, IL
Industry payments (Open Payments)
- 2025$2,786 · 27 payments from 9 companies
- 2024$24,502 · 76 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $1,763 | 5 |
| Novo Nordisk Inc | $298.07 | 6 |
| Astrazeneca Pharmaceuticals LP | $235.95 | 10 |
| Medtronic, Inc. | $165.73 | 1 |
| Boston Scientific Corporation | $125.96 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$1,635 · 2 payments
- Food and Beverage$1,152 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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