Dr. Eugene Tsai, M.D.
Hand Surgery (Orthopaedic Hand Surgery Physician)
8635 W 3rd St, Suite 990w
Los Angeles, CA 90048
Who else practices at this address →
Los Angeles County includes primary care (7% of residents) and mental health (13% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- Columbia University College of Physicians and Surgeons (2010)
- Years since graduation
- 16
- In the NPI registry since
- 2010
- Medicare patients seen, 2024
- 555
Licensed in California since 2016, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is
Education and training
- 2010Medical school: Columbia University College of Physicians and Surgeons
- 2010Registered with an NPI (national billing number; not a license date)
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Orthopaedic Hand Surgery Physician primary
CA license A142027 (first issued 2016; current) -
Orthopaedic Surgery Physician
MA license 261886
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Cedars-Sinai Medical Center Los Angeles, CA
Medical groups
- Cedars-Sinai Medical Care Foundation (1,692 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 555
- Services billed
- 3,247
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 683 | 215 |
| Established patient office or other outpatient visit, 20-29 minutes | 483 | 282 |
| Injection into tendon or ligament | 258 | 157 |
| New patient office or other outpatient visit, 30-44 minutes | 244 | 244 |
| X-ray of hand, minimum of 3 views | 213 | 141 |
| X-ray of wrist, minimum of 3 views | 184 | 108 |
| X-ray of finger, minimum of 2 views | 132 | 107 |
| Cast supplies, short arm cast, adult (11 years +), fiberglass | 88 | 24 |
| Established patient office or other outpatient visit, 30-39 minutes | 69 | 66 |
| Aspiration and/or injection of fluid from medium joint | 68 | 56 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Payments from drug and device companies
In 2025, 7 companies reported 11 payments worth $8,275 in total to this clinician.
| Skeletal Dynamics Inc | $7,602 |
|---|---|
| Musculoskeletal Transplant Foundation Inc. | $214 |
| Saxum Surgical, Inc. | $173 |
| Endo USA, Inc. | $156 |
| Trimed, Inc. | $62.44 |
| DePuy Synthes Sales Inc. | $51.33 |
| Aroa Biosurgery Incorporated | $16.09 |
| Education | $7,200 |
|---|---|
| Food and Beverage | $611 |
| Travel and Lodging | $465 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Skeletal Dynamics Inc Sep 9, 2025 | Education Geminus; Align; IJS · Orthopedic | $7,200 |
| Skeletal Dynamics Inc Sep 16, 2025 | Travel and Lodging Geminus; Align; IJS · Orthopedic · travel to LasVegas, NV | $402 |
| Trimed, Inc. Nov 3, 2025 | Travel and Lodging Tools - WFS · Orthopedics/Orthopedic Surgery · travel to Irvine, CA | $62.44 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.