Katy Yaser Hassan, PA-C
NPI 1194050500ActiveIndividual· Physician Assistant, Medical· Chicago, IL
Physician Assistant, Medical (PA-C) with Northwestern Medical Faculty Foundation, practicing in Chicago, Illinois. 182 Medicare patients in 2024, $17,194 paid; nearly all of their 72 Part D prescriptions were generic (92%). Bayer Healthcare Pharmaceuticals Inc. reported $22.14 in payments in 2025, mostly food and beverage. Lists Northwestern Medicine Central Dupage Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1194050500 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | Yes |
| NPI issued | Oct 3, 2009 |
| Last updated in NPPES | Apr 7, 2026 |
| Certified by provider | Apr 7, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | 085-003610 | 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 - Physician Assistant (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 182 |
|---|---|
| Services billed | 291 across 12 procedure codes |
| Paid by Medicare | $17,194 |
Part D prescriptions in 2024
| Prescriptions (claims) | 72 · 99 30-day fills |
|---|---|
| Patients | 46 |
| Total drug cost | $1,909 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
Hospital affiliations
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Northwestern Medicine Delnor Community HospitalGeneva, IL
- Northwestern Medicine Kishwaukee HospitalDekalb, IL
- Northwestern Medicine McHenryMcHenry, IL
- Northwestern Memorial HospitalChicago, IL
Other facilities
- Marianjoy Rehabilitation CenterInpatient rehabilitation facility · Wheaton, IL
Industry payments (Open Payments)
- 2025$22.14 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $22.14 | 1 |
What the 2025 payments were for
- Food and Beverage$22.14 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 180 physician assistants in Chicago · All physician assistants in Illinois