Marissa Lea Anderson, M.D.
NPI 1043539836ActiveIndividual· Colon & Rectal Surgery· Chicago, IL
Colon & Rectal Surgery (M.D.) in Chicago, Illinois, trained at New York University School of Medicine (class of 2019). In 2024 Medicare paid $54,712 for 125 patients, and Part D covered 133 of their prescriptions, 88% of them generic. Baxter Healthcare was the largest of 2 companies reporting payments in 2025, $151.30 in all, mostly food and beverage.
Overview
| NPI | 1043539836 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 19, 2010 |
| Last updated in NPPES | Feb 20, 2023 |
| Certified by provider | Feb 20, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Colon & Rectal Surgery Primary | 208C00000X | 036.161754 | IL |
| Surgery | 208600000X | 262804 | MA |
| Colon & Rectal Surgery | 208C00000X | 83360 | GA |
| Student in an Organized Health Care Education/Training Program | 390200000X | BP10038035 | TX |
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 - Colorectal Surgery (Proctology) (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 125 |
|---|---|
| Services billed | 287 across 52 procedure codes |
| Paid by Medicare | $54,712 |
Part D prescriptions in 2024
| Prescriptions (claims) | 133 · 133 30-day fills |
|---|---|
| Patients | 72 |
| Total drug cost | $2,297 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | New York University School of Medicine |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Colorectal Surgery (Proctology) |
Medical group
- Rush University Medical GroupChicago, IL · 1,551 clinicians
Hospital affiliations
- Rush Oak Park HospitalOak Park, IL
- Rush University Medical CenterChicago, IL
Industry payments (Open Payments)
- 2025$151.30 · 2 payments from 2 companies
- 2024$400.81 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Baxter Healthcare | $109.63 | 1 |
| Conmed Corporation | $41.67 | 1 |
What the 2025 payments were for
- Food and Beverage$151.30 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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