Silvia M. Sierra Flores, MD
NPI 1134112410ActiveIndividual· Internal Medicine· Las Cruces, NM
Internal Medicine (MD) in Las Cruces, New Mexico, trained at University of Puerto Rico School of Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $370,565 for 3,903 claims, against $105,855 paid for services in 2024. Radius Health, Inc. was the largest of 3 companies reporting payments in 2025, $49.75 in all, mostly food and beverage.
Overview
| NPI | 1134112410 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 23, 2005 |
| Last updated in NPPES | Sep 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 2002-0108 | NM |
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 - Internal Medicine (NM) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 275 |
|---|---|
| Services billed | 1,650 across 26 procedure codes |
| Paid by Medicare | $105,855 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,903 · 9,539 30-day fills |
|---|---|
| Patients | 278 |
| Total drug cost | $370,565 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of Puerto Rico School of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Internal Medicine |
Hospital affiliations
- Memorial Medical CenterLas Cruces, NM
- Mountain View Regional Medical CenterLas Cruces, NM
- Three Crosses Regional Hospital LLCLas Cruces, NM
Other facilities
- Ambercare Home HealthHome health agency · Las Cruces, NM
- Las Cruces Village Nursing & Rehabilitation LLCNursing home · Las Cruces, NM
Industry payments (Open Payments)
- 2025$49.75 · 3 payments from 3 companies
- 2024$177.48 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Radius Health, Inc. | $17.90 | 1 |
| Novo Nordisk Inc | $16.27 | 1 |
| Abbvie Inc. | $15.58 | 1 |
What the 2025 payments were for
- Food and Beverage$33.48 · 2 payments
- Education$16.27 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 77 internal medicine physicians in Las Cruces · All internal medicine physicians in New Mexico