Christina Regelsberger Alvarez, DO
Surgery · Greenville, NCNPI 1407234818
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (46.8%), education and food and beverage — rather than concentrated in one kind of arrangement. Intuitive Surgical accounts for 84.6% of it on its own, with 7 other manufacturers making up the rest. Reporting peaked in 2022 at $2,897 and has fallen 87.2% since, to $370 in 2025.
Across 19 payments — averaging $180.19 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$3K
- BD$350
- CSL Behring$55
- Medtronic$39
- Merck$35
- AstraZeneca$19
- plus $28 from 2 others
What the payments were for
- Consulting fees$35010%
- Travel & lodging$1,60347%
- Food & beverage$43713%
- Education$1,02030%
- Gifts$140%
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 | 9 | $2,897 |
| BD | 1 | $350 |
| CSL Behring | 3 | $55 |
| Medtronic | 1 | $39 |
| Merck | 2 | $35 |
| AstraZeneca | 1 | $19 |
| Teleflex LLC | 1 | $17 |
| Edwards Lifesciences | 1 | $11 |
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.
- Da Vinci Surgical System$1,814
- DAVINCI XI$1,000
- HemoSphere$350
How this compares
$3,424 in reported general payments places this provider in the 60th percentile of 970 surgery providers in North Carolina.
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 surgery in Greenville
- Walter BoydGreenville$311K
- Eric DemariaGreenville$68K
- Dustin BaldwinGreenville$44K
- Robert FanelliGreenville$37K
- Brant HenifordCharlotte$831K
- Vedra AugensteinCharlotte$789K
- John MartinieCharlotte$712K
- Dana PortenierDurham$702K
- Paul EnochsCary$595K
- David IannittiCharlotte$360K
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.