Internal Medicine, Medical Oncology · Chicago, IL
NPI
1053999599
Since 2021
Specialty
Internal Medicine, Medical Oncology
Code 207RX0202X
Group practices
2
Medicare group memberships
Hospitals
3
Hospital affiliations
5841 S Maryland Ave # Mc2115
Chicago, IL, 60637
Phone (773) 702-2984
Groups this clinician bills Medicare through
Medicare paid, 2024
$35K
354 services
Medicare patients, 2024
104
Average age 73
Drug cost, 2024
$1.5M
140 prescriptions
Company payments, 2025
$93K
From 14 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Marina Chiara Garassino was code 99215 (office e&m - established), 155 times for 51 patients. In total Marina Chiara Garassino billed 354 services in 13 codes, and Medicare paid $35K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2026-06-09.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99215 Office E&M - Established | Facility | 155 | 51 | $124.87 | $19K |
| 99233 Hospital E&M - Subsequent | Facility | 60 | 25 | $102.07 | $6,124 |
| 99214 Office E&M - Established | Facility | 47 | 30 | $81.05 | $3,809 |
| 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 | Facility | 28 | 24 | $14.56 | $408 |
| 99222 Hospital E&M - Initial | Facility | 17 | 16 | $110.39 | $1,877 |
| 99238 Hospital Discharge Management | Facility | 16 | 16 | $71.62 | $1,146 |
By year: 2022 $41K for 364 services; 2023 $52K for 489 services; 2024 $35K for 354 services.
Medicare prescription drug claims, 2024
In 2024, the drug Marina Chiara Garassino prescribed most often to Medicare patients was Tagrisso (Osimertinib Mesylate), with 24 prescriptions and refills. In total Marina Chiara Garassino wrote 140 Medicare prescriptions that cost $1.5M.
Brand drugs: 85 claims; generic drugs: 55 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Marina Chiara Garassino $93K ($92K in general payments such as food, travel and fees and $1,008 for research) from 14 companies. The largest payer was Merck Sharp & Dohme LLC with $42K.
| Company | Payments | Amount |
|---|---|---|
| Merck Sharp & Dohme LLC MRK | 25 | $42K |
| Regeneron Pharmaceuticals, Inc. REGN | 21 | $15K |
| AstraZeneca UK Limited AZN | 4 | $11K |
| Abbvie Inc. ABBV | 7 | $8,800 |
| AstraZeneca Pharmaceuticals LP AZN | 9 | $7,893 |
| Daiichi Sankyo Inc. 4568.T | 2 | $3,125 |
| Gilead Sciences, Inc. GILD | 3 | $2,973 |
| E.R. Squibb & Sons, L.L.C. BMY | 1 | $2,450 |
| Bayer Healthcare Pharmaceuticals Inc. BAYN.DE | 1 | $700 |
| Jazz Pharmaceuticals Inc. JAZZ | 1 | $123 |
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.