Elizabeth Littlejohn
Pediatric Endocrinology · Burr Ridge, ILNPI 1144370180
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (54.1%), consulting fees and education — rather than concentrated in one kind of arrangement. 33 manufacturers reported payments, led by AbbVie at 46.3% of the total. 2025 is the largest year on record at $5,828, more than ten times the $581 reported in 2019.
Across 222 payments — averaging $45.76 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$5K
- Medtronic$888
- Dexcom, Inc.$682
- Insulet Corporation$645
- Xeris Pharmaceuticals, Inc.$437
- Ascendis Pharma Endocrinology Inc$418
- plus $2K from 27 others
Across 15 payments — averaging $9490.16 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Soleno Therapeutics, Inc.$142K
What the payments were for
- Consulting fees$4,65046%
- Food & beverage$5,49654%
- Education$130%
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 |
|---|---|---|
| AbbVie | 5 | $4,706 |
| Medtronic(2 entities) | 21 | $888 |
| Dexcom, Inc. | 23 | $682 |
| Insulet Corporation | 34 | $645 |
| Xeris Pharmaceuticals, Inc. | 16 | $437 |
| Ascendis Pharma Endocrinology Inc | 15 | $418 |
| Azurity Pharmaceuticals, Inc. | 15 | $313 |
| Tandem Diabetes Care, Inc. | 10 | $284 |
| Abbott | 10 | $281 |
| Sanofi-aventis U.S. LLC | 8 | $272 |
| Novo Nordisk | 13 | $209 |
| AstraZeneca | 10 | $184 |
| Boston Scientific | 4 | $100 |
| UCB, Inc. | 4 | $97 |
| Amphastar Pharmaceuticals, Inc. | 4 | $78 |
| Eton Pharmaceuticals, Inc. | 1 | $63 |
| Ultragenyx Pharmaceutical Inc. | 3 | $56 |
| Ipsen Biopharmaceuticals, Inc | 3 | $56 |
| Arbor Pharmaceuticals, Inc. | 4 | $49 |
| Soleno Therapeutics, Inc. | 1 | $40 |
| 180 Medical, Inc. | 2 | $38 |
| Lilly USA, LLC | 3 | $37 |
| Tolmar, Inc. | 2 | $35 |
| Phadia US Inc. | 2 | $25 |
| BETA Bionics, Inc. | 1 | $21 |
| Sequel Med Tech, LLC | 1 | $21 |
| Endo Pharmaceuticals Inc. | 1 | $21 |
| Biomarin Pharmaceutical Inc. | 1 | $20 |
| QOL Medical, LLC | 1 | $19 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $17 |
| Amneal Pharmaceuticals LLC | 1 | $16 |
| Ferring Pharmaceuticals Inc. | 1 | $15 |
| Mirum Pharmaceuticals, Inc. | 1 | $14 |
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.
- ARMOUR THYROID$3,875
- DEXCOM G6 TRANSMITTER$218
- Minimed 670G System$205
- MINIMED 780G$124
- FreeStyle Libre$110
- Omnipod$107
- GVOKE HYPOPEN$104
How this compares
$10,159 in reported general payments places this provider in the 80th percentile of 61 pediatric endocrinology providers in Illinois.
Other pediatric endocrinology in Burr Ridge
- Anita SwamyChicago$1.4M
- Stuart KupferDeerfield$196K
- Mary McCauleyWinfield$170K
- Kanika GhaiPark Ridge$139K
- Angela Ganan PopaElk Grove Village$62K
- Courtney FinlaysonChicago$46K
- Stelios MantisChicago$27K
- William ZellerWheaton$15K
- Magdalena DuminPark Ridge$15K
- Richard LevyChicago$14K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.