Internal Medicine, Endocrinology, Diabetes, & Metabolism · Brownsville, TX
NPI
1346247939
Since 2005
Specialty
Internal Medicine, Endocrinology, Diabetes, & Metabolism
Code 207RE0101X
Group practices
2
Medicare group memberships
Hospitals
3
Hospital affiliations
844 Central Blvd Ste 280
Brownsville, TX, 78520
Phone (956) 281-0945
Groups this clinician bills Medicare through
Medicare paid, 2024
$48K
649 services
Medicare patients, 2024
202
Average age 73
Drug cost, 2024
$3.8M
5,939 prescriptions
Company payments, 2025
$859
From 7 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Willie C Teo Ong was code 99214 (office e&m - established), 350 times for 133 patients. In total Willie C Teo Ong billed 649 services in 8 codes, and Medicare paid $48K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2020-12-02.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 350 | 133 | $84.53 | $30K |
| 99213 Office E&M - Established | Office | 253 | 116 | $56.17 | $14K |
| 99204 Office E&M - New | Office | 22 | 22 | $121.67 | $2,677 |
By year: 2022 $81K for 1,103 services; 2023 $58K for 797 services; 2024 $48K for 649 services.
Lab tests billed to Medicare, 2023
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 83036 Blood Count | 18 | 16 | $9.52 | $171 |
Medicare prescription drug claims, 2024
In 2024, the drug Willie C Teo Ong prescribed most often to Medicare patients was Ozempic (Semaglutide), with 751 prescriptions and refills. In total Willie C Teo Ong wrote 5,939 Medicare prescriptions that cost $3.8M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Ozempic Semaglutide | 751 | 1,187 | 155 | $1.1M |
| Levothyroxine Sodium Generic | 560 | 1,591 | 182 | $7,029 |
| Jardiance Empagliflozin | 392 | 945 | 131 | $512K |
| Humalog Mix 75-25 Kwikpen Insulin Lispro Protamin/Lispro | 355 | 849 | 116 | $228K |
| Farxiga Dapagliflozin Propanediol | 342 | 712 | 105 | $382K |
| Metformin Hcl Generic | 326 | 920 | 121 | $2,474 |
| Mounjaro Tirzepatide | 242 | 337 | 48 | $355K |
| Novolog Mix 70-30 Flexpen Insulin Aspart Prot/Insuln Asp | 227 | 464 | 79 | $125K |
| Atorvastatin Calcium Generic | 208 | 598 | 84 | $2,215 |
| Ultra-Fine Mini Pen Needle Pen Needle, Diabetic | 126 | 313 | 66 | $12K |
| Nano 2nd Gen Pen Needle Pen Needle, Diabetic | 122 | 334 | 50 | $10K |
| Rosuvastatin Calcium Generic | 118 | 305 | 39 | $1,692 |
| Tresiba Flextouch U-100 Insulin Degludec | 101 | 223 | 29 | $71K |
| Insulin Lispro Protamine Mix Insulin Lispro Protamin/Lispro | 85 | 171 | 32 | $58K |
| Losartan Potassium Generic | 78 | 214 | 30 | $883 |
Brand drugs: 3,565 claims; generic drugs: 1,791 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Willie C Teo Ong $859 ($859 in general payments such as food, travel and fees) from 7 companies. The largest payer was Corcept Therapeutics with $234.
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.