Doctor profile · Federal record
Dr. Willy Tsai, M.D.
Nephrology Physician (CMS: Internal Medicine) · Greenville, SC
- NPI 1982636312
- Accepts Medicare
- MIPS 13.7 / 100 · 2023
- 25 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
203 Mills Ave
Greenville, SC 296054019
(864) 271-1844 - Mailing address
-
223 Huddersfield Dr
Simpsonville, SC 296813703
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- June 21, 2023
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Maryland #P15834
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1982636312. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,260
Distinct HCPCS
10
Medicare allowed
$205,609
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
Q5106 |
Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units | 592 | 11 | $8 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 410 | 286 | $96 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 221 | 116 | $75 | |
36415 |
Insertion of needle into vein for collection of blood sample | 178 | 127 | $8 | |
90935 |
Hemodialysis procedure with physician evaluation | 173 | 88 | $67 | |
90960 |
Dialysis services, 4 or more physician visits per month (20 years or older) | 137 | 30 | $344 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 125 | 64 | $108 | |
90966 |
Home dialysis services per month (20 years or older) | 100 | 39 | $289 | |
90945 |
Dialysis procedure including 1 evaluation | 99 | 33 | $81 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 53 | 53 | $157 |
In context: peer comparison
Among 14 peers in Greenville Nephrology Physician, average services per provider: 113. This provider delivers 20× the peer median.Open Payments
Industry payments received
All-time total
$724
Transactions
34
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen INC. | 5 | $107.92 | |
| Alexion Pharmaceuticals, INC. | 1 | $99.99 | |
| Calliditas Therapeutics US INC. | 4 | $84.79 | |
| Travere Therapeutics, INC. | 6 | $71.51 | |
| Otsuka America Pharmaceutical, INC. | 3 | $56.01 | |
| AstraZeneca Pharmaceuticals Lp | 3 | $46.67 | |
| Ardelyx, INC. | 2 | $44.03 | |
| Vifor Pharma, INC. | 2 | $41.35 | |
| Mallinckrodt Hospital Products INC. | 1 | $32.61 | |
| Fresenius USA Marketing, INC. | 2 | $31.61 | |
| Akebia Therapeutics INC | 1 | $28.99 | |
| Novartis Pharmaceuticals Corporation | 1 | $23.68 | |
| Novo Nordisk INC | 1 | $20.76 | |
| Bayer Healthcare Pharmaceuticals INC. | 1 | $18.03 | |
| Lilly USA, LLC | 1 | $16.42 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
640
Patients
162
Total drug cost
$156,199
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Farxiga (Dapagliflozin Propanediol) | Brand | 75 | 16 | $57,659 |
| Jardiance (Empagliflozin) | Brand | 73 | 21 | $54,882 |
| Losartan Potassium | Generic | 69 | 20 | $780 |
| Furosemide | Generic | 68 | 22 | $358 |
| Amlodipine Besylate | Generic | 53 | 22 | $690 |
| Carvedilol | Generic | 47 | 22 | $531 |
| Promethazine Hcl | Generic | 36 | 0 | $343 |
| Calcium Acetate | Generic | 34 | 11 | $2,203 |
| Hydralazine Hcl | Generic | 29 | 14 | $286 |
| Sevelamer Carbonate | Generic | 29 | 14 | $11,746 |
Hospital affiliations
Frequently asked questions
What is Dr. Willy Tsai's medical specialty?
Dr. Willy Tsai practices Nephrology Physician in Greenville, SC.
Where does Dr. Willy Tsai practice?
Dr. Willy Tsai practices at 203 Mills Ave, Greenville, SC 296054019. Office phone: 8642711844.
What is Dr. Willy Tsai's NPI?
Dr. Willy Tsai's National Provider Identifier (NPI) is 1982636312, issued by NPPES.
Does Dr. Willy Tsai accept Medicare assignment?
Yes. Dr. Willy Tsai accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Willy Tsai commonly perform?
Top Medicare-reported procedures in 2023: Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units (HCPCS Q5106); Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.