Mario Javier Velez, MD
NPI 1477879765ActiveIndividual· Internal Medicine, Gastroenterology· Milwaukee, WI
Internal Medicine, Gastroenterology (MD) in Milwaukee, Wisconsin, trained at Icahn School of Medicine at Mount Sinai (class of 2010). Their prescriptions cost Medicare Part D more than their services did: $272,659 for 795 claims, against $46,823 paid for services in 2024. Conmed Corporation reported $23.66 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1477879765 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 13, 2010 |
| Last updated in NPPES | Jan 26, 2026 |
| Certified by provider | Jan 26, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 70082-20 | WI |
| Internal Medicine, Gastroenterology | 207RG0100X | 060.0004183 | VT |
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 (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 298 |
|---|---|
| Services billed | 443 across 41 procedure codes |
| Paid by Medicare | $46,823 |
Part D prescriptions in 2024
| Prescriptions (claims) | 795 · 1,173 30-day fills |
|---|---|
| Patients | 416 |
| Total drug cost | $272,659 |
| Generic share | 73% of claims |
Education and affiliations
| Medical school | Icahn School of Medicine at Mount Sinai |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical groups
- Gi Associates LLCMilwaukee, WI · 55 clinicians
- Gastroenterology Specialists SCWauwatosa, WI · 30 clinicians
- Milwaukee Gi Specialists SCWauwatosa, WI · 15 clinicians
Hospital affiliations
- Ascension Se Wisconsin HospitalMilwaukee, WI
- Oconomowoc Memorial HospitalOconomowoc, WI
- Waukesha Memorial HospitalWaukesha, WI
Industry payments (Open Payments)
- 2025$23.66 · 1 payment from 1 company
- 2024$18.20 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Conmed Corporation | $23.66 | 1 |
What the 2025 payments were for
- Food and Beverage$23.66 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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