Laura Valdivia, MD
Infectious Disease · Tucson, AZNPI 1346286275
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 98.4% of the total across 56 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 11 manufacturers, the largest accounting for just 20.9% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2019 at $592 and has fallen 96.4% since, to $22 in 2025.
Across 56 payments — averaging $18.48 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Tetraphase Pharmaceuticals, Inc.$217
- Merck$174
- Gilead$114
- AbbVie$105
- Insmed, Inc.$84
- Viiv Healthcare Company$83
- plus $258 from 5 others
What the payments were for
- Food & beverage$1,01898%
- Education$162%
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 |
|---|---|---|
| Tetraphase Pharmaceuticals, Inc. | 8 | $217 |
| Merck | 13 | $174 |
| Gilead | 7 | $114 |
| AbbVie(2 entities) | 6 | $105 |
| Insmed, Inc. | 4 | $84 |
| Viiv Healthcare Company | 4 | $83 |
| Johnson & Johnson | 4 | $79 |
| Aimmune Therapeutics, Inc. | 2 | $75 |
| Astellas Pharma US Inc | 5 | $63 |
| Cumberland Pharmaceuticals, Inc. | 2 | $28 |
| Nabriva Therapeutics, PLC | 1 | $13 |
How this compares
$1,035 in reported general payments places this provider in the 75th percentile of 146 infectious disease providers in Arizona.
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 |
|---|---|---|
| Daptomycin | 28 | $14,091 |
| Oxacillin Sodium | 11 | $6,845 |
| ErtapenemErtapenem Sodium | 14 | $3,435 |
| Cefepime Hcl | 11 | $2,617 |
| Vancomycin Hcl | 18 | $2,590 |
| CeftriaxoneCeftriaxone Sodium | 17 | $873 |
Paid to pharmacies, not to this prescriber.
Other infectious disease in Tucson
- Mohanad Al-ObaidiTucson$3K
- Logan FelixTucson$2K
- Sudha NagalingamTucson$2K
- Marcelo NasifTucson$1K
- Richard MandelTucson$1K
- Steven OscherwitzTucson$1K
- Vimbai NyembaTucson$806
- Janin StrumingerTucson$805
- Clifford MartinTucson$775
- Angelita Poston-SeitzTucson$770
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.