Yong Tsai, M.D.
NPI 1659363505 · Rheumatology Physician · Daytona Beach, FL
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yong Tsai, M.D. is a Rheumatology Physician provider in Daytona Beach, FL (NPI 1659363505).
Provider details
- NPI number
- 1659363505
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- ME0064530 (FL)
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
20 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
8,598 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) |
|---|---|---|
| Test for Allergy Using Allergenic Extract95004 | 2,138 | $4 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,083 | $131 |
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 911 | $71 |
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 748 | $15 |
| Test for Allergy Using Skin Patch95044 | 740 | $5 |
| 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 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 73 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 1,387 | 385 |
| Hydroxychloroquine Sulfate | 1,362 | 409 |
| Prednisone | 1,345 | 456 |
| Alendronate Sodium | 552 | 178 |
| Tramadol Hcl | 464 | 122 |
| Leflunomide | 391 | 112 |
| Gabapentin | 329 | 111 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$841 across 36 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
- 2005-08-17
- Last updated
- 2023-06-09
- Certified
- 2023-06-09
Frequently asked questions
- What is Yong Tsai's NPI number?
- Yong Tsai's National Provider Identifier (NPI) is 1659363505, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yong Tsai's specialty?
- Yong Tsai is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Yong Tsai located?
- Yong Tsai's practice location on file with NPPES is 1893 N Clyde Morris Blvd, Daytona Beach, FL 32117-5535.
- What is Yong Tsai's phone number?
- The practice phone number listed in the NPPES registry for Yong Tsai is (386) 676-0307.
- Does Yong Tsai accept Medicare?
- Yong Tsai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yong Tsai's NPI active?
- Yes — Yong Tsai's NPI (1659363505) is active in the NPPES registry as of the last update on 2023-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.