Lee Michael Bass, M.D
NPI 1881866259ActiveIndividual· Pediatrics, Pediatric Gastroenterology· Chicago, IL
Pediatrics, Pediatric Gastroenterology (M.D) in Chicago, Illinois, licensed in IL, with an NPI issued in March 2008. Enrolled in Medicare as practitioner - gastroenterology. Ipsen Biopharmaceuticals, Inc was the largest of 3 companies reporting payments in 2025, $51,471 in all, mostly consulting fees.
Overview
| NPI | 1881866259 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | No |
| NPI issued | Mar 26, 2008 |
| Last updated in NPPES | Aug 3, 2026 |
| Certified by provider | Aug 3, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pediatrics, Pediatric Gastroenterology Primary | 2080P0206X | 336074257 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (IL) |
|---|
Industry payments (Open Payments)
- 2025$51,471 · 42 payments from 3 companies
- 2024$37,230 · 36 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ipsen Biopharmaceuticals, Inc | $31,140 | 13 |
| Mirum Pharmaceuticals, Inc. | $19,581 | 28 |
| Evoendo, Inc | $750.00 | 1 |
What the 2025 payments were for
- Consulting Fee$25,585 · 11 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$22,263 · 6 payments
- Travel and Lodging$1,810 · 10 payments
- Food and Beverage$1,063 · 14 payments
- Compensation for serving as faculty or as a speaker for a medical education program$750.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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