Karen Hsia Ma, MD, PHARMD
NPI 1124464789ActiveIndividual· Internal Medicine, Gastroenterology· Elmhurst, IL
Internal Medicine, Gastroenterology (MD, PHARMD) with Endeavor Health Medical Group, practicing in Elmhurst, Illinois. Mostly services rather than prescriptions: Medicare paid $113,446 for 413 patients in 2024, with only 19 Part D claims. Boehringer Ingelheim Pharmaceuticals, Inc. reported $265.94 in payments in 2024, mostly food and beverage. Lists Elmhurst Memorial Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1124464789 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, PHARMD |
| Sole proprietor | No |
| NPI issued | May 21, 2013 |
| Last updated in NPPES | Jan 13, 2022 |
| Certified by provider | Jan 13, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 036-139551 | 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 - Gastroenterology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 413 |
|---|---|
| Services billed | 1,006 across 36 procedure codes |
| Paid by Medicare | $113,446 |
Part D prescriptions in 2024
| Prescriptions (claims) | 19 · 27 30-day fills |
|---|---|
| Patients | 17 |
| Total drug cost | $499.22 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Endeavor Health Medical GroupEvanston, IL · 3,350 clinicians
Hospital affiliations
- Elmhurst Memorial HospitalElmhurst, IL
- Swedish HospitalChicago, IL
Industry payments (Open Payments)
- 2024$265.94 · 3 payments from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | $265.94 | 3 |
What the 2024 payments were for
- Food and Beverage$265.94 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 15 gastroenterologists in Elmhurst · All gastroenterologists in Illinois