Internal Medicine, Endocrinology, Diabetes, & Metabolism · Dekalb, IL
NPI
1932208063
Since 2006
Specialty
Internal Medicine, Endocrinology, Diabetes, & Metabolism
Code 207RE0101X
Group practices
1
Medicare group memberships
Hospitals
6
Hospital affiliations
Five Kish Hospital Dr, Suite 201
Dekalb, IL, 60115
Phone (815) 748-8335
Groups this clinician bills Medicare through
Medicare paid, 2024
$337K
5,526 services
Medicare patients, 2024
1,174
Average age 72
Drug cost, 2024
$4.7M
9,200 prescriptions
Company payments, 2025
$5,802
From 31 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Amer Kassar was code 99214 (office e&m - established), 1,253 times for 616 patients. In total Amer Kassar billed 5,526 services in 39 codes, and Medicare paid $337K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2021-01-06.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 1,253 | 616 | $83.72 | $105K |
| 99215 Office E&M - Established | Office | 684 | 245 | $121.35 | $83K |
| 99213 Office E&M - Established | Office | 639 | 423 | $58.05 | $37K |
| 76536 Ultrasound - Nonspecific | Office | 579 | 535 | $73.47 | $43K |
| 95251 Test - Miscellaneous | Office | 408 | 153 | $23.41 | $9,551 |
| 83036 Blood Count | Office | 311 | 236 | $9.22 | $2,867 |
| G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's | Office | 199 | 128 | $11.40 | $2,269 |
| 82962 Clinical Chemistry | Office | 194 | 136 | $3.14 | $610 |
| 96372 Injection Administration | Office | 192 | 48 | $9.83 | $1,888 |
| J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | Office | 83 | 34 | $0.90 | $74.6 |
| 99203 Office E&M - New | Office | 83 | 83 | $76.32 | $6,334 |
| 99204 Office E&M - New | Office | 72 | 72 | $109.64 | $7,894 |
| 99232 Hospital E&M - Subsequent | Facility | 68 | 26 | $56.56 | $3,846 |
| 99205 Office E&M - New | Office | 48 | 48 | $135.39 | $6,499 |
| 93880 Duplex Scan - Extracranial Arteries | Office | 45 | 45 | $127.40 | $5,733 |
By year: 2022 $297K for 4,915 services; 2023 $325K for 4,965 services; 2024 $337K for 5,526 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 83036 Blood Count | 311 | 236 | $9.22 | $2,867 |
| 82962 Clinical Chemistry | 194 | 136 | $3.14 | $610 |
Medicare prescription drug claims, 2024
In 2024, the drug Amer Kassar prescribed most often to Medicare patients was Levothyroxine Sodium, with 1,417 prescriptions and refills. In total Amer Kassar wrote 9,200 Medicare prescriptions that cost $4.7M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Levothyroxine Sodium Generic | 1,417 | 3,216 | 436 | $11K |
| Ozempic Semaglutide | 975 | 1,728 | 283 | $1.6M |
| Synthroid Levothyroxine Sodium | 644 | 1,462 | 197 | $58K |
| Liothyronine Sodium Generic | 501 | 1,204 | 156 | $18K |
| Metformin Hcl Generic | 426 | 1,020 | 165 | $1,654 |
| Jardiance Empagliflozin | 339 | 619 | 105 | $352K |
| Nano 2nd Gen Pen Needle Pen Needle, Diabetic | 328 | 849 | 166 | $45K |
| Atorvastatin Calcium Generic | 278 | 672 | 99 | $1,772 |
| Farxiga Dapagliflozin Propanediol | 272 | 533 | 99 | $289K |
| Lantus Solostar Insulin Glargine,hum.Rec.Anlog | 256 | 580 | 106 | $41K |
| Rosuvastatin Calcium Generic | 232 | 564 | 79 | $2,255 |
| Mounjaro Tirzepatide | 224 | 331 | 85 | $348K |
| Toujeo Solostar Insulin Glargine,hum.Rec.Anlog | 155 | 339 | 64 | $88K |
| Humalog Kwikpen U-100 Insulin Lispro | 150 | 335 | 66 | $53K |
| Metformin Hcl Er Metformin Hcl | 112 | 277 | 43 | $547 |
Brand drugs: 4,822 claims; generic drugs: 3,648 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Amer Kassar $5,802 ($5,802 in general payments such as food, travel and fees) from 31 companies. The largest payer was Medtronic, Inc. with $611.
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.