Joseph Tsai, MD, PHD
NPI 1043875297 · Radiation Oncology Physician · Tacoma, WA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Tsai, MD, PHD is a Radiation Oncology Physician provider in Tacoma, WA (NPI 1043875297).
Provider details
- NPI number
- 1043875297
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- MD61522808 (WA)
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
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
673 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) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 358 | $41 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 77 | $174 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 46 | $170 |
| Calculation of Radiation Therapy Dose77300 | 43 | $30 |
| Prolonged Office Or Other Outpatient Evaluation and Management Service(s) Beyond the Maximum Required Time of the Primary Procedure Which Has Been Selected Using Total Time on the Date of the Primary Service; Each Additional 15 Minutes By the Physician OrG2212 | 37 | $31 |
| Design and Construction of Complex Radiation Treatment Device77334 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$29 across 1 record (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
Additional practice locations (1)
- 550 1st AveNew York, NY 10016-6402Phone: (212) 263-5506
Registry dates
- Enumerated
- 2019-05-02
- Last updated
- 2024-11-04
- Certified
- 2024-11-04
Frequently asked questions
- What is Joseph Tsai's NPI number?
- Joseph Tsai's National Provider Identifier (NPI) is 1043875297, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Tsai's specialty?
- Joseph Tsai is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Tsai located?
- Joseph Tsai's practice location on file with NPPES is 1003 S 5th St, Tacoma, WA 98405-4210.
- What is Joseph Tsai's phone number?
- The practice phone number listed in the NPPES registry for Joseph Tsai is (253) 403-4994.
- Does Joseph Tsai accept Medicare?
- Joseph Tsai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Tsai's NPI active?
- Yes — Joseph Tsai's NPI (1043875297) is active in the NPPES registry as of the last update on 2024-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.