Herbert M. User, MD
NPI 1578592770ActiveIndividual· Urology· Chicago Ridge, IL
Urology (MD) in Chicago Ridge, Illinois, trained at University of Michigan Medical School (class of 1996). 899 Medicare patients in 2024, $471,770 paid; nearly all of their 2,490 Part D prescriptions were generic (93%). Calyxo, Inc. was the largest of 16 companies reporting payments in 2025, $1,496 in all, mostly food and beverage.
Overview
| NPI | 1578592770 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 1, 2006 |
| Last updated in NPPES | Oct 20, 2026 |
| Certified by provider | Oct 20, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Urology Primary | 208800000X | 036102534 | 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 - Urology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 899 |
|---|---|
| Services billed | 24,836 across 70 procedure codes |
| Paid by Medicare | $471,770 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,490 · 5,407 30-day fills |
|---|---|
| Patients | 647 |
| Total drug cost | $231,106 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | University of Michigan Medical School |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Urology |
| Telehealth | Offers telehealth |
Medical group
- Uropartners LLCHinsdale, IL · 138 clinicians
Hospital affiliations
- Advocate Christ Hospital & Medical CenterOak Lawn, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Osf Little Company of Mary Medical CenterEvergreen Park, IL
- Palos Community HospitalPalos Heights, IL
- Silver Cross Hospital and Medical CentersNew Lenox, IL
Industry payments (Open Payments)
- 2025$1,496 · 47 payments from 16 companies
- 2024$970.98 · 31 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calyxo, Inc. | $311.61 | 2 |
| Abbvie Inc. | $241.29 | 9 |
| Bioprotect Medical, Inc. | $179.34 | 1 |
| Janssen Biotech, Inc. | $163.65 | 10 |
| Sumitomo Pharma America, Inc. | $143.40 | 6 |
What the 2025 payments were for
- Food and Beverage$1,496 · 47 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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