Theresa Guo, MD
Otolaryngology · San Diego, CANPI 1255694196
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $19,104 of the $24,004 with a category attached, or 79.6%. 9 manufacturers reported payments, led by Regeneron Healthcare Solutions, Inc. at 48.5% of the total. 2025 is the largest year on record at $11,785, more than ten times the $300 reported in 2019. Among otolaryngology clinicians in CA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 37 payments — averaging $648.77 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Regeneron Healthcare Solutions, Inc.$12K
- Regeneron$12K
- Intuitive Surgical$300
- Janssen Research & Development, LLC$140
- Stryker$83
- Tactile Systems Technology Inc$65
- plus $147 from 3 others
Across 1 payment — averaging $1170.00 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.
- Hoffmann-la Roche Limited$1K
What the payments were for
- Consulting fees$19,10480%
- Travel & lodging$3,37714%
- Food & beverage$1,2245%
- Education$3001%
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. | 11 | $11,645 |
| Regeneron | 18 | $11,624 |
| Intuitive Surgical | 1 | $300 |
| Janssen Research & Development, LLC | 1 | $140 |
| Stryker | 1 | $83 |
| Tactile Systems Technology Inc | 1 | $65 |
| Kls-martin L.p. | 2 | $53 |
| Atos Medical Inc | 1 | $48 |
| Integra Lifesciences Corporation | 1 | $46 |
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.
- LIBTAYO$22,680
- Da Vinci Surgical System$300
How this compares
$24,004 in reported general payments places this provider in the 95th percentile of 1,021 otolaryngology 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 |
|---|---|---|
| Lidocaine Hcl ViscousLidocaine Hcl | 13 | $168 |
| Oxycodone Hcl | 11 | $96 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 13 | $58 |
| Chlorhexidine Gluconate | 11 | $50 |
Paid to pharmacies, not to this prescriber.
Other otolaryngology in San Diego
- Brian WeeksSan Diego$924K
- Adam DecondeSan Diego$32K
- Charles TesarSan Diego$21K
- Charles CoffeySan Diego$20K
- Erik ViirreSan Diego$17K
- Jo-Lawrence BigcasSan Diego$15K
- Randall OwRoseville$613K
- Amir MoradiVista$389K
- Keith BlackwellLos Angeles$349K
- Kalpna DurairajSun Valley$348K
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.