Michael Callander, MD
Surgical Critical Care · Fredericksburg, VANPI 1326487190
Payments from drug & device makers
What this record shows
The money is spread across several categories — education (52.5%), travel and lodging and food and beverage — rather than concentrated in one kind of arrangement. Intuitive Surgical accounts for 95.7% of it on its own, with 6 other manufacturers making up the rest. 2025 is the largest year on record at $7,283, more than ten times the $11 reported in 2019.
Across 39 payments — averaging $195.22 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$7K
- Medtronic$162
- Corcept Therapeutics$81
- Johnson & Johnson$25
- Boston Scientific$24
- Integra Lifesciences Corporation$23
- plus $16 from 1 others
What the payments were for
- Travel & lodging$2,74436%
- Food & beverage$86911%
- Education$4,00053%
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 |
|---|---|---|
| Intuitive Surgical | 32 | $7,283 |
| Medtronic | 1 | $162 |
| Corcept Therapeutics | 1 | $81 |
| Johnson & Johnson | 2 | $25 |
| Boston Scientific | 1 | $24 |
| Integra Lifesciences Corporation | 1 | $23 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $16 |
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.
- DAVINCI XI$4,000
- Da Vinci Surgical System$2,700
- Signia$162
How this compares
$7,613 in reported general payments places this provider in the 75th percentile of 60 surgical critical care providers in Virginia.
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.
Other surgical critical care in Fredericksburg
- Matthew YanoffFredericksburg$9K
- Jeffrey LittRichmond$54K
- Michael MartyakNorfolk$47K
- Lunzy BrittNorfolk$33K
- George KasotakisFairfax$25K
- Mack DrakeRichmond$21K
- Alexander EvansSalem$16K
- Jay JohannigmanCharlottesville$16K
- Alexa ShawNorfolk$12K
- Nicholas BandyVirginia Beach$10K
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.