Tiffany Jacqueline Sierro, MD
NPI 1033744016ActiveIndividual· Student in an Organized Health Care Education/Training Program· Dallas, TX
Student in an Organized Health Care Education/Training Program (MD) in Dallas, Texas, trained at University of Southern California Keck School of Medicine (class of 2021). Part D covered 80 prescriptions written in 2024, 89% of them generic. Ucb, Inc. was the largest of 12 companies reporting payments in 2025, $1,089 in all, mostly food and beverage.
Overview
| NPI | 1033744016 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 10, 2020 |
| Last updated in NPPES | May 2, 2022 |
| Certified by provider | May 2, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Student in an Organized Health Care Education/Training Program Primary | 390200000X | — | — |
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 - Dermatology (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 80 · 99 30-day fills |
|---|---|
| Patients | 35 |
| Total drug cost | $102,477 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 2021 |
| Medicare specialty | Dermatology |
Medical group
- Parrish Sadeghi, MD IncSanta Monica, CA · 4 clinicians
Industry payments (Open Payments)
- 2025$1,089 · 17 payments from 12 companies
- 2024$1,111 · 10 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ucb, Inc. | $288.42 | 3 |
| Genzyme Corporation | $250.10 | 3 |
| Galderma Laboratories, L.P. | $169.80 | 2 |
| Blueprint Medicines Corporation | $123.26 | 1 |
| Abbvie Inc. | $101.44 | 1 |
What the 2025 payments were for
- Food and Beverage$1,089 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 4,006 Student in an Organized Health Care Education/Training Program providers in Dallas · All Student in an Organized Health Care Education/Training Program providers in Texas