Mahwish H. Saim, M.D.
NPI 1649767997ActiveIndividual· Internal Medicine, Pulmonary Disease· Winfield, IL
Internal Medicine, Pulmonary Disease (M.D.) with Central Dupage Physician Group, practicing in Winfield, Illinois. Part D covered 45 prescriptions written in 2024, 47% of them generic. Olympus Corporation of the Americas was the largest of 2 companies reporting payments in 2025, $2,212 in all, mostly travel and lodging. Lists Northwestern Lake Forest Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1649767997 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 21, 2018 |
| Last updated in NPPES | Oct 15, 2026 |
| Certified by provider | Oct 15, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 036174037 | IL |
| Internal Medicine, Pulmonary Disease | 207RP1001X | 5315251576 | MI |
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 - Pulmonary Disease (IL) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 45 · 53 30-day fills |
|---|---|
| Patients | 22 |
| Total drug cost | $86,081 |
| Generic share | 47% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists), Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Central Dupage Physician GroupGeneva, IL · 1,080 clinicians
Hospital affiliations
- Northwestern Lake Forest HospitalLake Forest, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Northwestern Medicine Delnor Community HospitalGeneva, IL
- Northwestern Medicine Kishwaukee HospitalDekalb, IL
- Northwestern Medicine McHenryMcHenry, IL
Other facilities
- Marianjoy Rehabilitation CenterInpatient rehabilitation facility · Wheaton, IL
Industry payments (Open Payments)
- 2025$2,212 · 27 payments from 2 companies
- 2024$415.83 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Olympus Corporation of the Americas | $1,258 | 11 |
| Inspire Medical Systems, Inc. | $953.93 | 16 |
What the 2025 payments were for
- Travel and Lodging$1,808 · 22 payments
- Food and Beverage$404.39 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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