Eugenia Tsai, M.D.
NPI 1598028870 · Hepatology Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eugenia Tsai, M.D. is a Hepatology Physician provider in San Antonio, TX (NPI 1598028870).
Provider details
- NPI number
- 1598028870
- Entity type
- Individual
- Primary specialty
- Hepatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- S2921 (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
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
554 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 | 203 | $110 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 106 | $134 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 54 | $121 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 46 | $162 |
| Complete Ultrasound Scan of Abdomen76700 | 40 | $73 |
| Measurement of Liver Stiffness91200 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tacrolimus | 157 | 53 |
| Pantoprazole Sodium | 125 | 34 |
| Carvedilol | 78 | 32 |
| Spironolactone | 75 | 39 |
| Furosemide | 74 | 48 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 72 | 27 |
| Ursodiol | 68 | 20 |
| Lactulose |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$394 across 10 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
- 2012-06-21
- Last updated
- 2022-06-08
- Certified
- 2022-06-08
Frequently asked questions
- What is Eugenia Tsai's NPI number?
- Eugenia Tsai's National Provider Identifier (NPI) is 1598028870, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eugenia Tsai's specialty?
- Eugenia Tsai is listed in the NPPES registry with a primary specialty of Hepatology Physician (Allopathic & Osteopathic Physicians).
- Where is Eugenia Tsai located?
- Eugenia Tsai's practice location on file with NPPES is 607 Camden St Ste 108, San Antonio, TX 78215-2100.
- What is Eugenia Tsai's phone number?
- The practice phone number listed in the NPPES registry for Eugenia Tsai is (210) 253-3426.
- Does Eugenia Tsai accept Medicare?
- Eugenia Tsai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eugenia Tsai's NPI active?
- Yes — Eugenia Tsai's NPI (1598028870) is active in the NPPES registry as of the last update on 2022-06-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.