Diane Highum
Psychiatry · Costa Mesa, CANPI 1396868386
Payments from drug & device makers
What this record shows
That places this record below the midpoint for psychiatry clinicians in CA, where the typical reported total is $186.
No general payments reported
No drug or device maker reported general payments to this provider for 2019–2025. That is a common and unremarkable result.
$8,781,376in research payments, 2019–2025
Across 1,102 payments — averaging $7968.58 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Otsuka Pharmaceutical Development & Commercialization, Inc.$2.2M
- AbbVie$1.8M
- Teva Pharmaceuticals USA, Inc.$1.2M
- ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.)$1.1M
- Hoffmann-la Roche Limited$630K
- Merck$542K
- plus $1.3M from 16 others
How this compares
$0 in reported general payments places this provider in the 10th percentile of 4,954 psychiatry providers in California.
Other psychiatry in Costa Mesa
- Alejandro AlvaCosta Mesa$271K
- Gustavo AlvaOrange$5.8M
- John KooSan Francisco$3M
- Jason KelloggIrvine$2.7M
- Jonathan MeyerSan Diego$2.3M
- Charles Tuan-Tu NguyenIrvine$2.1M
- Manoj WaikarLos Gatos$1.9M
- Gerald MaguireSan Juan Capistraco$1.8M
- Salima BrillmanSunnyvale$1.4M
- Bibi DasStanford$1.4M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.