John Cabelka, MD
Radiation Oncology · Opelika, ALNPI 1467452532
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 99.0% of the total across 177 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 50 manufacturers, the largest accounting for just 7.7% — the pattern of someone who eats at a lot of different presentations. 2025 is the largest year on record at $994, more than ten times the $80 reported in 2019.
Across 177 payments — averaging $19.99 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$271
- Johnson & Johnson$245
- Regeneron Healthcare Solutions, Inc.$228
- Novocure Inc.$210
- E.r. Squibb & Sons, L.L.C.$200
- Daiichi Sankyo Inc.$155
- plus $2K from 44 others
What the payments were for
- Food & beverage$3,50499%
- Education$341%
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.
How this compares
$3,538 in reported general payments places this provider in the 75th percentile of 87 radiation oncology providers in Alabama.
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 |
|---|---|---|
| Tamsulosin Hcl | 129 | $1,501 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 21 | $262 |
Paid to pharmacies, not to this prescriber.
Other radiation oncology in Opelika
- Alexander WhitleyMontgomery$441K
- Drexell BoggsBirmingham$35K
- Christopher JahrausAlabaster$28K
- Christopher WilleyBirmingham$13K
- Adam KoleBirmingham$11K
- William HixsonFairhope$10K
- John GleasonHuntsville$9K
- Andrew McDonaldBirmingham$8K
- Hoyt ChildsHuntsville$7K
- James TuckerTuscaloosa$6K
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.