Brian Khong, DO
Endocrinology, Diabetes & Metabolism · Santa Rosa, CANPI 1649765405
Payments from drug & device makers
Across 2 payments — averaging $14.76 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Xeris Pharmaceuticals, Inc.$15
- Radius Health, Inc.$15
What the payments were for
- Food & beverage$1551%
- Education$1549%
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 |
|---|---|---|
| Xeris Pharmaceuticals, Inc. | 1 | $15 |
| Radius Health, Inc. | 1 | $15 |
How this compares
$30 in reported general payments places this provider in the 0th percentile of 952 endocrinology, diabetes & metabolism providers in California.
See all endocrinology, diabetes & metabolism providers in California →
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 |
|---|---|---|
| OzempicSemaglutide | 194 | $274,358 |
| JardianceEmpagliflozin | 95 | $133,234 |
| TrulicityDulaglutide | 93 | $124,948 |
| MounjaroTirzepatide | 69 | $83,557 |
| Humalog Kwikpen U-200Insulin Lispro | 20 | $37,746 |
| Omnipod 5 Dexg7g6 Pods (Gen 5)Insulin Pump Cart,auto,bt,g6/7 | 16 | $36,021 |
| Evenity (2 Syringes)Romosozumab-Aqqg | 13 | $31,003 |
| ProliaDenosumab | 17 | $28,263 |
| WegovySemaglutide | 14 | $21,241 |
| Fiasp FlextouchInsulin Aspart (Niacinamide) | 17 | $15,839 |
| JatenzoTestosterone Undecanoate | 11 | $15,560 |
| Tresiba Flextouch U-100Insulin Degludec | 18 | $12,244 |
| Lantus SolostarInsulin Glargine,hum.Rec.Anlog | 77 | $10,940 |
| TradjentaLinagliptin | 15 | $10,667 |
| Humalog Kwikpen U-100Insulin Lispro | 29 | $9,915 |
Paid to pharmacies, not to this prescriber.
Other endocrinology, diabetes & metabolism in Santa Rosa
- Jerrold OlefskySan Diego$26.5M
- Mark ChristiansenWalnut Creek$22.9M
- Timothy BaileyEscondido$22.3M
- Stanley HsiaLos Angeles$19.8M
- Juan FriasSan Diego$14.1M
- Paul NorwoodFresno$6.2M
- Athena Philis-Tsimikasla Jolla$6M
- David AhnNewport Beach$5.8M
- Shlomo MelmedLos Angeles$3.3M
- Leila ChaychiSan Carlos$3.2M
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.