Internal Medicine, Endocrinology, Diabetes, & Metabolism · Los Angeles, CA
NPI
1821157405
Since 2006
Specialty
Internal Medicine, Endocrinology, Diabetes, & Metabolism
Code 207RE0101X
Group practices
1
Medicare group memberships
Hospitals
1
Hospital affiliations
6041 Cadillac Ave
Los Angeles, CA, 90034
Phone (323) 857-2000
Groups this clinician bills Medicare through
Medicare paid, 2024
$4,240
56 services
Medicare patients, 2024
22
Average age 62
Drug cost, 2024
$605K
3,711 prescriptions
Company payments, 2025
$59.23
From 2 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Timothy I Hsieh was code 99214 (office e&m - established), 19 times for 11 patients. In total Timothy I Hsieh billed 56 services in 12 codes, and Medicare paid $4,240.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2021-11-29.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 19 | 11 | $96.52 | $1,834 |
By year: 2022 $2,933 for 39 services; 2023 $3,313 for 53 services; 2024 $4,240 for 56 services.
Medicare prescription drug claims, 2024
In 2024, the drug Timothy I Hsieh prescribed most often to Medicare patients was Levothyroxine Sodium, with 900 prescriptions and refills. In total Timothy I Hsieh wrote 3,711 Medicare prescriptions that cost $605K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Levothyroxine Sodium Generic | 900 | 2,945 | 265 | $17K |
| Methimazole Generic | 260 | 859 | 88 | $4,984 |
| Humulin N Insulin Nph Human Isophane | 147 | 438 | 54 | $26K |
| Insulin Glargine-Yfgn Generic | 129 | 357 | 49 | $17K |
| Ozempic Semaglutide | 126 | 136 | 17 | $98K |
| Nano 2nd Gen Pen Needle Pen Needle, Diabetic | 122 | 355 | 51 | $3,618 |
| Humulin R Insulin Regular, Human | 108 | 312 | 37 | $14K |
| Jardiance Empagliflozin | 102 | 327 | 37 | $61K |
| Metformin Hcl Generic | 90 | 290 | 32 | $1,077 |
| Humulin N Kwikpen Insulin Nph Human Isophane | 90 | 225 | 27 | $15K |
| Metformin Hcl Er Metformin Hcl | 86 | 263 | 30 | $905 |
| Glipizide Generic | 85 | 278 | 33 | $1,199 |
| Testosterone Generic | 83 | 195 | 29 | $7,660 |
| Humalog Insulin Lispro | 73 | 185 | 25 | $17K |
| Hydrocortisone Generic | 65 | 196 | 18 | $3,227 |
Brand drugs: 1,183 claims; generic drugs: 2,215 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Timothy I Hsieh $59.23 ($59.23 in general payments such as food, travel and fees) from 2 companies. The largest payer was Tandem Diabetes Care, Inc. with $30.24.
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.