Diem Chang
General Practice · Lake Forest, CANPI 1730335951
Payments from drug & device makers
Across 139 payments — averaging $33.75 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Amgen$1K
- Novo Nordisk$636
- AbbVie$548
- Esperion Therapeutics, Inc.$301
- Boehringer Ingelheim$250
- Dexcom, Inc.$199
- plus $2K from 20 others
What the payments were for
- Food & beverage$4,65699%
- Education$351%
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 |
|---|---|---|
| Amgen | 11 | $1,186 |
| Novo Nordisk | 31 | $636 |
| AbbVie | 28 | $548 |
| Esperion Therapeutics, Inc. | 3 | $301 |
| Boehringer Ingelheim | 2 | $250 |
| Dexcom, Inc. | 5 | $199 |
| Sanofi-aventis U.S. LLC | 8 | $177 |
| Embecta Corp. | 9 | $161 |
| Kyowa Kirin, Inc. | 2 | $151 |
| Cequr Corporation | 1 | $149 |
| Abbott | 6 | $146 |
| AstraZeneca(2 entities) | 7 | $145 |
| Bayer | 1 | $124 |
| Amarin Pharma, Inc. | 6 | $124 |
| Mannkind Corporation | 5 | $76 |
| OPKO Pharmaceuticals, LLC | 3 | $66 |
| Genentech USA, Inc. | 2 | $57 |
| Premier Dental Products Company | 1 | $35 |
| Acerus Pharmaceuticals Corporation | 1 | $26 |
| Alvogen Inc | 1 | $25 |
| Exeltis, USA Inc. | 1 | $23 |
| Pfizer | 1 | $21 |
| Merck | 1 | $18 |
| Calliditas Therapeutics US Inc. | 1 | $17 |
| Amryt Pharma Holdings Ltd | 1 | $17 |
| Antares Pharma, Inc. | 1 | $14 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- KRYSTEXXA$752
- JARDIANCE$250
- Repatha$229
- CeQur Simplicity$149
- NEXLIZET$125
- NEXLETOL$125
- DEXCOM G7 GSS (161)$124
- RYBELSUS$109
- Prolia$109
How this compares
$4,691 in reported general payments places this provider in the 95th percentile of 12,963 general practice providers in California.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Chlorhexidine Gluconate | 14 | $34 |
Paid to pharmacies, not to this prescriber.
Other general practice in Lake Forest
- Hessam AazamiCanoga Park$88.4M
- Frederic MollRedwood City$5.7M
- Nathan LiLancaster$5.2M
- Milton McCollSan Jose$4.9M
- Bruce TorkanLos Angeles$3.8M
- Daniel JohnsonPalm Desert$1.5M
- Bradley ChingUpland$1.4M
- Jared AdamsSan Francisco$862K
- Marina GoldGlendale$784K
- Eric BrassTorrance$755K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.