Eugene Tsai, M.D.
NPI 1437474475 · Orthopaedic Hand Surgery Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Hand Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eugene Tsai, M.D. is a Orthopaedic Hand Surgery Physician provider in Los Angeles, CA (NPI 1437474475).
Provider details
- NPI number
- 1437474475
- Entity type
- Individual
- Primary specialty
- Orthopaedic Hand Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 261886 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,008 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 454 | $99 |
| Injection Into Tendon Or Ligament20550 | 231 | $54 |
| X-Ray of Hand, Minimum of 3 Views73130 | 230 | $43 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 208 | $121 |
| X-Ray of Finger, Minimum of 2 Views73140 | 156 | $44 |
| X-Ray of Wrist, Minimum of 3 Views73110 | 137 | $47 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,430 across 13 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-04-01
- Last updated
- 2016-12-12
Frequently asked questions
- What is Eugene Tsai's NPI number?
- Eugene Tsai's National Provider Identifier (NPI) is 1437474475, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eugene Tsai's specialty?
- Eugene Tsai is listed in the NPPES registry with a primary specialty of Orthopaedic Hand Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Eugene Tsai located?
- Eugene Tsai's practice location on file with NPPES is 8635 W 3rd St, Los Angeles, CA 90048-6101.
- What is Eugene Tsai's phone number?
- The practice phone number listed in the NPPES registry for Eugene Tsai is (310) 423-5900.
- Does Eugene Tsai accept Medicare?
- Eugene Tsai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eugene Tsai's NPI active?
- Yes — Eugene Tsai's NPI (1437474475) is active in the NPPES registry as of the last update on 2016-12-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.