Penka Zamfirova
Internal Medicine · Chicago, ILNPI 1275616914
Payments from drug & device makers
Across 192 payments — averaging $26.63 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$1K
- Lilly USA, LLC$746
- Boehringer Ingelheim$645
- Novo Nordisk$302
- Antares Pharma, Inc.$251
- Sanofi-aventis U.S. LLC$192
- plus $2K from 17 others
What the payments were for
- Speaking & faculty fees$140%
- Food & beverage$5,099100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| AstraZeneca | 54 | $1,224 |
| Lilly USA, LLC | 38 | $746 |
| Boehringer Ingelheim | 23 | $645 |
| Novo Nordisk | 13 | $302 |
| Antares Pharma, Inc. | 3 | $251 |
| Sanofi-aventis U.S. LLC | 17 | $192 |
| Pfizer | 8 | $190 |
| Amgen | 3 | $167 |
| Johnson & Johnson | 3 | $154 |
| Novartis | 9 | $154 |
| GSK | 2 | $143 |
| Medtronic | 1 | $127 |
| Astellas Pharma US Inc | 1 | $125 |
| Gilead | 1 | $119 |
| Urovant Sciences Inc | 1 | $117 |
| Sumitomo Pharma America, Inc. | 1 | $117 |
| Exact Sciences | 4 | $96 |
| Procept Biorobotics Corporation | 1 | $69 |
| E.r. Squibb & Sons, L.L.C. | 3 | $59 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 2 | $42 |
| Merck | 2 | $31 |
| Philips North America LLC | 1 | $27 |
| Esperion Therapeutics, Inc. | 1 | $18 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
How this compares
$5,114 in reported general payments places this provider in the 90th percentile of 5,182 internal medicine providers in Illinois.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Albuterol Sulfate HfaAlbuterol Sulfate | 22 | $874 |
| Gabapentin | 37 | $724 |
| Nifedipine ErNifedipine | 16 | $569 |
| Omeprazole | 48 | $392 |
| Lidocaine | 14 | $346 |
| Losartan Potassium | 30 | $332 |
| Amlodipine Besylate | 50 | $311 |
| Levothyroxine Sodium | 16 | $308 |
| Metoprolol Succinate | 13 | $270 |
| Rosuvastatin Calcium | 25 | $231 |
| Hydrochlorothiazide | 32 | $208 |
| Montelukast Sodium | 19 | $166 |
| Metformin Hcl | 12 | $153 |
| Cyclobenzaprine Hcl | 15 | $149 |
| Prednisone | 17 | $126 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Chicago
- Dennis LevinsonChicago$25.3M
- Danny SugimotoChicago$4M
- Peter O DonnellChicago$3.9M
- Daniel CatenacciChicago$3.5M
- Patricia WalshChicago$2.1M
- Merle DiamondChicago$1.7M
- Mohammed KassemChicago$1.3M
- David BakerChicago$1M
- Azazuddin AhmedChicago$912K
- Daniel BergerChicago$861K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.