Alejandra Perez-Tamayo
NPI 1821416165ActiveIndividual· Surgery· Chicago, IL
Surgery with The Board of Trustees of the University of Illinois and 1 other group, practicing in Chicago, Illinois. In 2024 Medicare paid $18,655 for 94 patients, and Part D covered 50 of their prescriptions, 86% of them generic. Boston Scientific Corporation was the largest of 2 companies reporting payments in 2025, $155.43 in all, mostly food and beverage. Lists John H Stroger Jr Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1821416165 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Apr 3, 2014 |
| Last updated in NPPES | Apr 14, 2021 |
| Certified by provider | Apr 14, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 036.149537 | IL |
| Colon & Rectal Surgery | 208C00000X | 036.149537 | 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 - Colorectal Surgery (Proctology) (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 94 |
|---|---|
| Services billed | 178 across 41 procedure codes |
| Paid by Medicare | $18,655 |
Part D prescriptions in 2024
| Prescriptions (claims) | 50 · 54 30-day fills |
|---|---|
| Patients | 33 |
| Total drug cost | $500.27 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Colorectal Surgery (Proctology) |
| Secondary specialties | General Surgery |
Medical groups
- The Board of Trustees of the University of IllinoisChicago, IL · 1,150 clinicians
- Cook CountyChicago, IL · 788 clinicians
Hospital affiliations
- John H Stroger Jr HospitalChicago, IL
- University of Illinois Hospital and ClinicsChicago, IL
Industry payments (Open Payments)
- 2025$155.43 · 2 payments from 2 companies
- 2024$175.18 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $130.79 | 1 |
| Aroa Biosurgery Incorporated | $24.64 | 1 |
What the 2025 payments were for
- Food and Beverage$155.43 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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