Joaquin J. Estrada, MD
NPI 1629126651ActiveIndividual· Colon & Rectal Surgery· Chicago, IL
Colon & Rectal Surgery (MD) in Chicago, Illinois, trained at University of California, Geffen School of Medicine (class of 2003). In 2024 Medicare paid $70,553 for 199 patients, and Part D covered 438 of their prescriptions, 77% of them generic. Ethicon US, LLC was the largest of 2 companies reporting payments in 2025, $228.94 in all, mostly food and beverage.
Overview
| NPI | 1629126651 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jan 8, 2007 |
| Last updated in NPPES | Mar 4, 2026 |
| Certified by provider | Mar 4, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Colon & Rectal Surgery Primary | 208C00000X | 036-125251 | IL |
| Surgery | 208600000X | 036.125251 | IL |
| Surgery | 208600000X | A91251 | CA |
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 | 199 |
|---|---|
| Services billed | 507 across 61 procedure codes |
| Paid by Medicare | $70,553 |
Part D prescriptions in 2024
| Prescriptions (claims) | 438 · 462 30-day fills |
|---|---|
| Patients | 249 |
| Total drug cost | $17,379 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Colorectal Surgery (Proctology) |
| Secondary specialties | General Surgery |
Medical group
- Advocate Health and Hospitals CorporationChicago, IL · 3,118 clinicians
Hospital affiliations
- Advocate Good Samaritan HospitalDowners Grove, IL
- Advocate Illinois Masonic Medical CenterChicago, IL
- Advocate Lutheran General HospitalPark Ridge, IL
Industry payments (Open Payments)
- 2025$228.94 · 2 payments from 2 companies
- 2024$172.15 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ethicon US, LLC | $150.00 | 1 |
| Davol Inc. | $78.94 | 1 |
What the 2025 payments were for
- Food and Beverage$228.94 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 48 colorectal surgeons in Chicago · All colorectal surgeons in Illinois