Charles McDaniel, DO
Gastroenterology · Sunnyvale, TXNPI 1497250377
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 98.7% of the total across 102 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 18 manufacturers reported payments, led by AbbVie at 35.2% of the total. 2025 is the largest year on record at $1,582, more than ten times the $19 reported in 2022. That places this record below the midpoint for gastroenterology clinicians in TX, where the typical reported total is $3,104.
Across 102 payments — averaging $23.63 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$849
- Johnson & Johnson$364
- Boston Scientific$200
- Pfizer$143
- Madrigal Pharmaceuticals$139
- Ardelyx, Inc.$137
- plus $578 from 12 others
What the payments were for
- Food & beverage$2,37999%
- Education$311%
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 | 43 | $849 |
| Johnson & Johnson | 15 | $364 |
| Boston Scientific | 2 | $200 |
| Pfizer | 7 | $143 |
| Madrigal Pharmaceuticals | 5 | $139 |
| Ardelyx, Inc. | 5 | $137 |
| Takeda Pharmaceuticals U.S.A., Inc. | 6 | $130 |
| Sanofi | 3 | $81 |
| Phathom Pharmaceuticals, Inc. | 4 | $78 |
| Medtronic | 1 | $68 |
| Ironwood Pharmaceuticals, Inc | 2 | $43 |
| Intercept Pharmaceuticals, Inc. | 2 | $42 |
| Braintree Laboratories, Inc. | 2 | $30 |
| Regeneron Healthcare Solutions, Inc. | 1 | $27 |
| Lilly USA, LLC | 1 | $24 |
| Ferring Pharmaceuticals Inc. | 1 | $23 |
| Aimmune Therapeutics, Inc. | 1 | $18 |
| Ipsen Biopharmaceuticals, Inc | 1 | $15 |
How this compares
$2,410 in reported general payments places this provider in the 40th percentile of 1,350 gastroenterology providers in Texas.
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 |
|---|---|---|
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 77 | $4,761 |
| Omeprazole | 98 | $1,459 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Sunnyvale
- John FordtranDallas$9.9M
- Michael BrownDallas$5.5M
- Bincy AbrahamHouston$1.6M
- Mazen NoureddinHouston$1.5M
- Stephen PappasHouston$1.4M
- Anish PatelFort Sam Houston$1.3M
- Timothy RitterSouthlake$961K
- Parvez MantryDallas$958K
- Nadege GunnWaco$933K
- Brooks CashHouston$867K
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.