Leslie Dalaza Mattson, M.D.
NPI 1487975181ActiveIndividual· Internal Medicine· Bloomingdale, IL
Internal Medicine (M.D.) in Bloomingdale, Illinois, trained at Loyola University of Chicago, Stritch School of Medicine (class of 2010). In 2024 Medicare paid $87,303 for 384 patients, and Part D covered 694 of their prescriptions, 87% of them generic. Janssen Pharmaceuticals, Inc reported $19.86 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1487975181 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 16, 2010 |
| Last updated in NPPES | Jun 28, 2024 |
| Certified by provider | Jun 28, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036131651 | IL |
| Hospitalist | 208M00000X | 036.131651 | 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 | 384 |
|---|---|
| Services billed | 1,435 across 66 procedure codes |
| Paid by Medicare | $87,303 |
Part D prescriptions in 2024
| Prescriptions (claims) | 694 · 1,341 30-day fills |
|---|---|
| Patients | 311 |
| Total drug cost | $41,518 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Dupage Medical Group LtdWinfield, IL · 1,322 clinicians
Other facilities
- Astra Health WestHome health agency · Elgin, IL
Industry payments (Open Payments)
- 2024$19.86 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Janssen Pharmaceuticals, Inc | $19.86 | 1 |
What the 2024 payments were for
- Food and Beverage$19.86 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 27 internal medicine physicians in Bloomingdale · All internal medicine physicians in Illinois