Internal Medicine, Nephrology · Modesto, CA
NPI
1629161336
Since 2006
Specialty
Internal Medicine, Nephrology
Code 207RN0300X
Group practices
2
Medicare group memberships
Hospitals
5
Hospital affiliations
305 E Granger Ave, Ste 202
Modesto, CA, 95350
Phone (209) 526-1606
Groups this clinician bills Medicare through
Medicare paid, 2024
$376K
3,574 services
Medicare patients, 2024
662
Average age 74
Drug cost, 2024
$459K
6,711 prescriptions
Company payments, 2025
$725
From 14 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Tong Sun was code 99232 (hospital e&m - subsequent), 1,029 times for 270 patients. In total Tong Sun billed 3,574 services in 17 codes, and Medicare paid $376K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2008-02-22.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99232 Hospital E&M - Subsequent | Facility | 1,029 | 270 | $61.44 | $63K |
| 99233 Hospital E&M - Subsequent | Facility | 978 | 315 | $92.09 | $90K |
| 99214 Office E&M - Established | Office | 543 | 254 | $74.13 | $40K |
| 99223 Hospital E&M - Initial | Facility | 298 | 259 | $135.21 | $40K |
| 90960 ESRD Related Services (not dialysis) | Office | 281 | 44 | $269.48 | $76K |
| 90961 ESRD Related Services (not dialysis) | Office | 94 | 34 | $226.76 | $21K |
| 99215 Office E&M - Established | Office | 89 | 64 | $130.29 | $12K |
| 90962 ESRD Related Services (not dialysis) | Office | 65 | 18 | $158.49 | $10K |
| 99205 Office E&M - New | Office | 50 | 50 | $146.43 | $7,321 |
| 90935 Hemodialysis | Facility | 29 | 23 | $55.61 | $1,613 |
| 99443 Telephone Services | Office | 13 | 13 | $79.93 | $1,039 |
By year: 2022 $294K for 2,382 services; 2023 $297K for 2,464 services; 2024 $376K for 3,574 services.
Lab tests billed to Medicare, 2023
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 81000 Clinical Chemistry | 17 | 17 | $3.94 | $66.98 |
Medicare prescription drug claims, 2024
In 2024, the drug Tong Sun prescribed most often to Medicare patients was Furosemide, with 1,339 prescriptions and refills. In total Tong Sun wrote 6,711 Medicare prescriptions that cost $459K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Furosemide Generic | 1,339 | 3,471 | 415 | $17K |
| Allopurinol Generic | 797 | 2,037 | 232 | $13K |
| Amlodipine Besylate Generic | 460 | 1,277 | 154 | $3,612 |
| Potassium Chloride Generic | 360 | 882 | 113 | $12K |
| Hydralazine Hcl Generic | 328 | 903 | 106 | $5,097 |
| Metoprolol Tartrate Generic | 275 | 720 | 89 | $3,291 |
| Carvedilol Generic | 256 | 601 | 80 | $2,940 |
| Lisinopril Generic | 244 | 636 | 86 | $1,715 |
| Clinolipid Fat Emulsion/Olive/Soy/Phospho | 225 | 225 | Under 11 | $54K |
| Losartan Potassium Generic | 156 | 422 | 45 | $2,166 |
| Spironolactone Generic | 152 | 410 | 57 | $2,433 |
| Tamsulosin Hcl Generic | 111 | 277 | 32 | $1,769 |
| Calcitriol Generic | 107 | 256 | 32 | $2,955 |
| Doxazosin Mesylate Generic | 92 | 232 | 25 | $1,474 |
| Sevelamer Carbonate Generic | 86 | 113 | 25 | $8,625 |
Brand drugs: 920 claims; generic drugs: 5,777 claims; opioid claims: 27.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Tong Sun $725 ($725 in general payments such as food, travel and fees) from 14 companies. The largest payer was Bayer Healthcare Pharmaceuticals Inc. with $96.12.
| Company | Payments | Amount |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. BAYN.DE | 4 | $96.12 |
| Amgen Inc. AMGN | 5 | $90.2 |
| Otsuka America Pharmaceutical, Inc. 4578.T | 3 | $88.73 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 4 | $86.73 |
| Calliditas Therapeutics US Inc. | 3 | $80.87 |
| Fresenius USA Marketing, Inc. | 3 | $59.04 |
| Akebia Therapeutics Inc AKBA | 2 | $53.22 |
| Kyowa Kirin, Inc. 4151.T | 2 | $47.98 |
| Ascendis Pharma Endocrinology Inc ASND | 1 | $27.96 |
| Scpharmaceuticals Inc. SCPH | 1 | $24.37 |
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.