Aaron G. Coates, MD
NPI 1871603050ActiveIndividual· Internal Medicine· Rockford, IL
Internal Medicine (MD) in Rockford, Illinois, trained at Hahnemann University College of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $1,167,117 for 15,269 claims, against $59,245 paid for services in 2024.
Overview
| NPI | 1871603050 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 30, 2006 |
| Last updated in NPPES | Jan 20, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036-103278 | 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 | 356 |
|---|---|
| Services billed | 965 across 36 procedure codes |
| Paid by Medicare | $59,245 |
Part D prescriptions in 2024
| Prescriptions (claims) | 15,269 · 35,725 30-day fills |
|---|---|
| Patients | 954 |
| Total drug cost | $1,167,117 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Hahnemann University College of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Rockford Health PhysiciansRockford, IL · 521 clinicians
Hospital affiliations
- Javon Bea HospitalRockford, IL
- Saint Anthony Medical CenterRockford, IL
- University of Wi Hospitals & Clinics AuthorityMadison, WI
- Uw HealthRockford, IL
Other facilities
- Empower Home Health ServicesHome health agency · West Dundee, IL
- Mercyhealth at HomeHome health agency · Rockford, IL
- Vna HospiceHospice · Rockford, IL
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 101 internal medicine physicians in Rockford · All internal medicine physicians in Illinois