Joanne Tsai, MD
NPI 1346260148 · Cardiovascular Disease Physician · Austin, TX
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanne Tsai, MD is a Cardiovascular Disease Physician provider in Austin, TX (NPI 1346260148).
Provider details
- NPI number
- 1346260148
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- K9949 (TX)
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
19 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
973 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) |
|---|---|---|
| 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 | 340 | $30 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 235 | $138 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 157 | $8 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 124 | $66 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 42 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 88 | 42 |
| Isosorbide Mononitratebrand: Isosorbide Mononitrate Er | 67 | 20 |
| Spironolactone | 54 | 21 |
| Empagliflozinbrand: Jardiance | 47 | 17 |
| Furosemide | 40 | 18 |
| Apixabanbrand: Eliquis | 38 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$446 across 21 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
Additional practice locations (1)
- 34 Mark West Springs RdSanta Rosa, CA 95403-1766Phone: (707) 573-5200Fax: (707) 573-5417
Registry dates
- Enumerated
- 2006-07-21
- Last updated
- 2024-04-05
- Certified
- 2024-04-05
Frequently asked questions
- What is Joanne Tsai's NPI number?
- Joanne Tsai's National Provider Identifier (NPI) is 1346260148, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanne Tsai's specialty?
- Joanne Tsai is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Joanne Tsai located?
- Joanne Tsai's practice location on file with NPPES is 3801 N Lamar Blvd, Austin, TX 78756-4080.
- What is Joanne Tsai's phone number?
- The practice phone number listed in the NPPES registry for Joanne Tsai is (512) 206-3600.
- Does Joanne Tsai accept Medicare?
- Joanne Tsai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanne Tsai's NPI active?
- Yes — Joanne Tsai's NPI (1346260148) is active in the NPPES registry as of the last update on 2024-04-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.