Theresa Birchfield, PA
Physician Assistant · Reno, NVNPI 1780206854
Payments from drug & device makers
Across 14 payments — averaging $28.60 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Regeneron Healthcare Solutions, Inc.$115
- Mannkind Corporation$78
- Sanofi$60
- GSK$58
- Aerin Medical Inc.$40
- Amgen$34
- plus $15 from 1 others
What the payments were for
- Food & beverage$34987%
- Education$5213%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | 5 | $115 |
| Mannkind Corporation | 1 | $78 |
| Sanofi | 2 | $60 |
| GSK | 2 | $58 |
| Aerin Medical Inc. | 2 | $40 |
| Amgen | 1 | $34 |
| Stryker | 1 | $15 |
How this compares
$400 in reported general payments places this provider in the 50th percentile of 881 physician assistant providers in Nevada.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Azelastine Hcl | 231 | $10,036 |
| Ipratropium Bromide | 138 | $4,234 |
| Fluticasone Propionate | 197 | $3,198 |
| Cefdinir | 136 | $2,876 |
| Ciprofloxacin-DexamethasoneCiprofloxacin Hcl/Dexameth | 14 | $1,719 |
| Doxycycline Hyclate | 162 | $1,695 |
| Montelukast Sodium | 73 | $1,131 |
| Neomycin-Polymyxin-HydrocortNeomycin/Polymyxin B/Hydrocort | 14 | $967 |
| Prednisolone Acetate | 23 | $960 |
| Clindamycin Hcl | 60 | $880 |
| Methylprednisolone | 127 | $738 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 54 | $656 |
| Triamcinolone Acetonide | 90 | $639 |
| Mupirocin | 68 | $555 |
| Prednisone | 83 | $386 |
Paid to pharmacies, not to this prescriber.
Other physician assistant in Reno
- John LarsenReno$49K
- Laura BiehleReno$36K
- Benjamin ProhaskaReno$31K
- Rebecca SparksReno$16K
- Daniel CollReno$12K
- Cameron WheelerReno$11K
- Julia WronaReno$10K
- Amber FrancoReno$9K
- Paul JohnsReno$8K
- Shannon WeaverReno$7K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.