Walter Glaws, DO
Gastroenterology · Gurnee, ILNPI 1104828532
Payments from drug & device makers
Across 744 payments — averaging $14.30 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$3K
- AbbVie$1K
- Takeda Pharmaceuticals U.S.A., Inc.$1K
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$1K
- Pfizer$711
- Gilead$407
- plus $3K from 28 others
What the payments were for
- Food & beverage$10,53399%
- Education$1031%
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 |
|---|---|---|
| Johnson & Johnson(3 entities) | 247 | $3,188 |
| AbbVie | 98 | $1,395 |
| Takeda Pharmaceuticals U.S.A., Inc. | 110 | $1,374 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 61 | $1,023 |
| Pfizer | 53 | $711 |
| Gilead | 29 | $407 |
| QOL Medical, LLC | 16 | $312 |
| Madrigal Pharmaceuticals | 12 | $255 |
| Sanofi | 8 | $236 |
| Lilly USA, LLC | 13 | $209 |
| Regeneron Healthcare Solutions, Inc. | 8 | $198 |
| Bristol Myers Squibb | 19 | $195 |
| Ardelyx, Inc. | 16 | $168 |
| Phathom Pharmaceuticals, Inc. | 9 | $167 |
| Intercept Pharmaceuticals, Inc. | 7 | $109 |
| Celltrion USA Inc. | 4 | $90 |
| Pentax Of America, Inc. | 2 | $81 |
| Vivus LLC | 5 | $58 |
| Ironwood Pharmaceuticals, Inc | 3 | $55 |
| Merck | 3 | $50 |
| Aimmune Therapeutics, Inc. | 2 | $44 |
| UCB, Inc. | 2 | $41 |
| Dova Pharmaceuticals | 2 | $40 |
| Braintree Laboratories, Inc. | 2 | $37 |
| Ipsen Biopharmaceuticals, Inc | 1 | $34 |
| Tersera Therapeutics LLC | 1 | $32 |
| Laborie Medical Technologies Corp. | 1 | $23 |
| Daiichi Sankyo Inc. | 1 | $22 |
| Amgen | 1 | $20 |
| Ferring Pharmaceuticals Inc. | 1 | $20 |
| Evoke Pharma, Inc. | 1 | $17 |
| Romark Laboratories, LC | 1 | $13 |
| Concordia Pharmaceuticals Inc. | 1 | $12 |
| Gastrogpo, LLC | 4 | $0 |
How this compares
$10,636 in reported general payments places this provider in the 75th percentile of 787 gastroenterology providers in Illinois.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| LinzessLinaclotide | 150 | $154,039 |
| XifaxanRifaximin | 46 | $152,179 |
| XeljanzTofacitinib Citrate | 17 | $92,197 |
| ZenpepLipase/Protease/Amylase | 13 | $37,894 |
| CreonLipase/Protease/Amylase | 16 | $36,033 |
| PentasaMesalamine | 13 | $15,614 |
| Dexlansoprazole DrDexlansoprazole | 37 | $12,866 |
| TrulancePlecanatide | 18 | $12,459 |
| Mesalamine | 21 | $6,305 |
| Omeprazole | 483 | $5,767 |
| Pantoprazole Sodium | 288 | $4,711 |
| Ursodiol | 13 | $3,988 |
| Balsalazide Disodium | 21 | $3,664 |
| Sucralfate | 18 | $3,510 |
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 47 | $3,027 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| AbbVieLinzess, Creon | $1,395 | $190,072166 claims |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLCXifaxan, Trulance | $1,023 | $164,63864 claims |
| PfizerXeljanz | $711 | $92,19717 claims |
| Aimmune Therapeutics, Inc.Zenpep | $44 | $37,89413 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 75th percentile of 787 gastroenterology providers in Illinois.
Other gastroenterology in Gurnee
- Jonathan RosenbergGurnee$3.1M
- Fred RosenbergGurnee$318K
- Kamran AyubOak Lawn$4.3M
- David RubinChicago$3.6M
- Stephen HanauerChicago$2.9M
- Parambir DulaiChicago$2.2M
- Charles BerkelhammerOak Lawn$1.9M
- Ikuo HiranoChicago$1.8M
- Manish BhuvaLake Barrington$1.7M
- Steven FlammChicago$1.6M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.