Steven Tsai, MD
NPI 1922341205 · Hematology & Oncology Physician · Santa Monica, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Tsai, MD is a Hematology & Oncology Physician provider in Santa Monica, CA (NPI 1922341205).
Provider details
- NPI number
- 1922341205
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A134439 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 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
1,269 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 340 | $122 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 152 | $17 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 129 | $8 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 102 | $147 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 79 | $17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Acyclovir | 51 | 22 |
| Rivaroxabanbrand: Xarelto | 32 | — |
| Venetoclaxbrand: Venclexta | 29 | — |
| Gilteritinib Fumaratebrand: Xospata | 24 | — |
| Apixabanbrand: Eliquis | 21 | — |
| Lenalidomidebrand: Revlimid | 19 | — |
| Isavuconazonium Sulfatebrand: Cresemba |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,440 across 8 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
- 2013-04-04
- Last updated
- 2023-03-07
- Certified
- 2020-10-13
Frequently asked questions
- What is Steven Tsai's NPI number?
- Steven Tsai's National Provider Identifier (NPI) is 1922341205, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Tsai's specialty?
- Steven Tsai is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Tsai located?
- Steven Tsai's practice location on file with NPPES is 2020 Santa Monica Blvd Ste 600, Santa Monica, CA 90404-2131.
- What is Steven Tsai's phone number?
- The practice phone number listed in the NPPES registry for Steven Tsai is (310) 829-5471.
- Does Steven Tsai accept Medicare?
- Steven Tsai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Tsai's NPI active?
- Yes — Steven Tsai's NPI (1922341205) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.