Daniel Chang, MD
Ophthalmology · Bakersfield, CANPI 1184618266
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $730,267 of the $820,127 with a category attached, or 89.0%. Johnson & Johnson Surgical Vision, Inc. accounts for 72.4% of it on its own, with 23 other manufacturers making up the rest. Among ophthalmology 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 628 payments — averaging $1305.94 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson Surgical Vision, Inc.$593K
- AbbVie$116K
- Carl Zeiss Meditec, Inc.$54K
- Beaver-visitec International, Inc.$53K
- Tarsus Pharmaceuticals, Inc.$2K
- Carl Zeiss Meditec USA, Inc.$453
- plus $1K from 18 others
Across 136 payments — averaging $19,421 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.
- Johnson & Johnson Surgical Vision, Inc.$2.6M
- Novartis$21K
- Bausch & Lomb Americas Inc.$9K
- AbbVie$2K
- Oyster Point Pharma, Inc.$2K
What the payments were for
- Consulting fees$730,26789%
- Speaking & faculty fees$56,6387%
- Travel & lodging$21,3423%
- Food & beverage$11,7811%
- Education$1000%
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 |
|---|---|---|
| Johnson & Johnson Surgical Vision, Inc. | 418 | $593,482 |
| AbbVie(2 entities) | 135 | $115,777 |
| Carl Zeiss Meditec, Inc. | 38 | $53,518 |
| Beaver-visitec International, Inc. | 1 | $53,400 |
| Tarsus Pharmaceuticals, Inc. | 2 | $2,239 |
| Carl Zeiss Meditec USA, Inc. | 3 | $453 |
| Johnson & Johnson Vision Care, Inc. | 5 | $313 |
| Dompe US, Inc. | 2 | $169 |
| NEW World Medical,inc. | 1 | $113 |
| Integra Lifesciences Corporation | 1 | $97 |
| Bausch & Lomb, A Division Of Bausch Health US, LLC | 3 | $91 |
| Johnson & Johnson | 1 | $75 |
| Eyevance Pharmaceuticals LLC | 4 | $67 |
| Sun Pharmaceutical Industries Inc. | 3 | $50 |
| Mentor Worldwide LLC | 1 | $45 |
| Kala Pharmaceuticals, Inc. | 2 | $40 |
| Sanofi | 1 | $32 |
| Glaukos Corporation | 1 | $31 |
| Harrow Eye, LLC | 1 | $28 |
| Alcon | 1 | $26 |
| Oyster Point Pharma, Inc. | 1 | $26 |
| Bausch & Lomb Americas Inc. | 1 | $23 |
| Amgen | 1 | $16 |
| Galderma Laboratories, L.p. | 1 | $16 |
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.
- INTRALASE FS FEMTOSEC LASER$301,337
- Compact Intuitiv$295,294
- IFS ADVANCED FEMTOSEC LASER$290,419
- Tecnis IOL$105,448
- Catalys Laser System$94,104
- COMPACT INTUITIV Phacofragmentation System$84,909
- Tecnis Multifocal Family of 1-piece IOLS$53,976
- VUITY$38,526
- Tecnis Toric 1-piece IOL$38,350
- Tecnis Symfony IOL$31,735
- Tecnis Simplicity$27,840
- IOLMaster 700$25,491
- Tecnis Symfony Toric IOL$23,032
- Tecnis 1-piece IOL$22,386
- Tecnis 3-piece IOL$19,816
- Tecnis Symphony IOL$19,810
- Tecnis Symphony Toric IOL$19,810
- RESTASIS$15,900
- CATALYS SYSTEM$11,424
- IOLMaster$10,400
How this compares
$820,127 in reported general payments places this provider in the 95th percentile of 2,513 ophthalmology 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 |
|---|---|---|
| Prednisolone Acetate | 37 | $1,772 |
| Ofloxacin | 20 | $181 |
Paid to pharmacies, not to this prescriber.
Other ophthalmology in Bakersfield
- Daniel SchwartzSan Francisco$8M
- Michael BerlinWest Hollywood$5.7M
- Gilbert KlimanMenlo Park$1.5M
- Kuldev SinghStanford$1.5M
- Raymond DouglasBeverly Hills$1.3M
- John AffeldtLoma Linda$1.1M
- Srinivas SaddaPasadena$1M
- Sheri RowenNewport Beach$1M
- Savak TeymoorianLaguna Hills$955K
- Andrew MoshfeghiLos Angeles$895K
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.