Joshua Robert Trob, M.D.
NPI 1548217144ActiveIndividual· Internal Medicine, Nephrology· Libertyville, IL
Internal Medicine, Nephrology (M.D.) in Libertyville, Illinois, trained at Harvard Medical School (class of 1995). 641 Medicare patients in 2024, $189,742 paid; nearly all of their 433 Part D prescriptions were generic (91%). Amgen Inc. was the largest of 15 companies reporting payments in 2025, $837.25 in all, mostly food and beverage.
Overview
| NPI | 1548217144 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 28, 2006 |
| Last updated in NPPES | Nov 22, 2024 |
| Certified by provider | Nov 22, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 036100394 | 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 - Nephrology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 641 |
|---|---|
| Services billed | 2,576 across 22 procedure codes |
| Paid by Medicare | $189,742 |
Part D prescriptions in 2024
| Prescriptions (claims) | 433 · 992 30-day fills |
|---|---|
| Patients | 90 |
| Total drug cost | $76,124 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Associates in Nephrology SCChicago, IL · 52 clinicians
Hospital affiliations
- Advocate Condell Medical CenterLibertyville, IL
- Advocate Illinois Masonic Medical CenterChicago, IL
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
- Northwestern Lake Forest HospitalLake Forest, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
Other facilities
- Concerto DialysisDialysis facility · Lincolnwood, IL
- Davita Lake Villa DialysisDialysis facility · Lake Villa, IL
- Fkc - GrayslakeDialysis facility · Grayslake, IL
- Fkc - Lake BluffDialysis facility · Lake Bluff, IL
- Fmc - Neomedica - Round LakeDialysis facility · Round Lake, IL
- Encompass Health Rehab Institute of LibertyvilleInpatient rehabilitation facility · Libertyville, IL
Industry payments (Open Payments)
- 2025$837.25 · 42 payments from 15 companies
- 2024$821.31 · 35 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $216.62 | 15 |
| Akebia Therapeutics Inc | $113.31 | 4 |
| Calliditas Therapeutics US Inc. | $112.35 | 6 |
| Mallinckrodt Hospital Products Inc. | $85.42 | 3 |
| Bayer Healthcare Pharmaceuticals Inc. | $52.32 | 2 |
What the 2025 payments were for
- Food and Beverage$815.05 · 41 payments
- Education$22.20 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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