Mark Anthony Herrera Operario, M.D.
NPI 1720099344ActiveIndividual· Family Medicine· Columbia, LA
Family Medicine (M.D.) with Caldwell Memorial Hospital, Inc., practicing in Columbia, Louisiana. Their prescriptions cost Medicare Part D more than their services did: $1,629,667 for 17,826 claims, against $30,856 paid for services in 2024. Abbvie Inc. was the largest of 3 companies reporting payments in 2025, $75.60 in all, mostly food and beverage. Lists Caldwell Memorial Hospital, Inc and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1720099344 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Aug 10, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | MD11362R | LA |
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 - Internal Medicine (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 95 |
|---|---|
| Services billed | 686 across 4 procedure codes |
| Paid by Medicare | $30,856 |
Part D prescriptions in 2024
| Prescriptions (claims) | 17,826 · 23,883 30-day fills |
|---|---|
| Patients | 393 |
| Total drug cost | $1,629,667 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 1985 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Caldwell Memorial Hospital, Inc.Columbia, LA · 26 clinicians
Hospital affiliations
- Caldwell Memorial Hospital, IncColumbia, LA
- Citizens Medical CenterColumbia, LA
- Fmol Health St FrancisMonroe, LA
- Franklin Medical CenterWinnsboro, LA
- Ochsner Lsu Health MonroeMonroe, LA
Other facilities
- Allegiance Home Health of Northeast laHome health agency · West Monroe, LA
- Elara CaringHome health agency · Ruston, LA
- Haven Home Health IncHome health agency · Monroe, LA
- Primestar Home Health IncHome health agency · Rayville, LA
- Stat Home Health North, LLCHome health agency · Monroe, LA
- Ascend Hospice Care, LLCHospice · Monroe, LA
- Caldwell Memorial HospitalInpatient rehabilitation facility · Columbia, LA
- Haven Nursing CenterNursing home · Columbia, LA
- Plantation Oaks Nursing & Rehabilitation CenterNursing home · Wisner, LA
Industry payments (Open Payments)
- 2025$75.60 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $27.13 | 1 |
| Pfizer Inc. | $25.15 | 1 |
| Viatris Specialty LLC | $23.32 | 1 |
What the 2025 payments were for
- Food and Beverage$75.60 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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