Juan Gabriel Flores, M.D.
NPI 1093931909ActiveIndividual· Internal Medicine, Pulmonary Disease· Naperville, IL
Internal Medicine, Pulmonary Disease (M.D.) in Naperville, Illinois, trained at Loyola University of Chicago, Stritch School of Medicine (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $988,750 for 1,769 claims, against $250,684 paid for services in 2024. Lilly USA, LLC was the largest of 4 companies reporting payments in 2025, $89,505 in all, mostly speaking and faculty fees.
Overview
| NPI | 1093931909 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 18, 2007 |
| Last updated in NPPES | Aug 7, 2023 |
| Certified by provider | Aug 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 036113061 | IL |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 036113061 | IL |
| Internal Medicine, Sleep Medicine | 207RS0012X | 036113061 | IL |
| Internal Medicine | 207R00000X | 036-113061 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Pulmonary Disease (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 857 |
|---|---|
| Services billed | 3,245 across 65 procedure codes |
| Paid by Medicare | $250,684 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,769 · 3,240 30-day fills |
|---|---|
| Patients | 412 |
| Total drug cost | $988,750 |
| Generic share | 51% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists) |
| Telehealth | Offers telehealth |
Medical groups
- Endeavor Health Medical GroupEvanston, IL · 3,350 clinicians
- Dupage Medical Group LtdWinfield, IL · 1,322 clinicians
Hospital affiliations
- Edward HospitalNaperville, IL
- Saint Joseph Medical CenterJoliet, IL
Industry payments (Open Payments)
- 2025$89,505 · 131 payments from 4 companies
- 2024$317.56 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $89,221 | 128 |
| Kerecis Limited | $144.10 | 1 |
| Verona Pharma, Inc. | $117.31 | 1 |
| Stryker Corporation | $22.71 | 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$80,100 · 67 payments
- Travel and Lodging$8,221 · 41 payments
- Food and Beverage$1,184 · 23 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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