21ST CENTURY ONCOLOGY: all contributions

2025–2026 · Reported individual contributions grouped by employer.

These are contributions by individuals, not by their employer, industry, or location. Refunds remain negative; memo-only rows are marked and are not additional money.

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#	Reported contributor / location	Reported employer / occupation	Recipient / reporting committee	Date ↕	Amount ↓	Election	Filing details / source
1	MANTZ, CONSTANTINE A. MDFORT MYERS FL 33901	RADIATION ONCOLOGIST 21ST CENTURY ONCOLOGY	AMERICAN SOCIETY FOR RADIATION ONCOLOGY PAC (''ASTRO-PAC'')C00384602	2025-05-15	$1,000	Primary (P)	Filing 1906008FEC filing ↗
2	MELSER, MARCPUNTA GORDA FL 33982	PHYSICIAN 21ST CENTURY ONCOLOGY	MARK KELLY FOR SENATEC00696526	2026-01-05	$250	Primary 2028 (P2028)	* EARMARKED CONTRIBUTION: SEE BELOWFiling 1964176FEC filing ↗
3	MELSER, MARC A. MDPUNTA GORDA FL 33982	PHYSICIAN 21ST CENTURY ONCOLOGY	DEMOCRATIC EXECUTIVE COMMITTEE OF FLORIDAC00005561	2025-10-31	$40	Primary (P)	Filing 1926152FEC filing ↗
4	MELSER, MARC A. MDPUNTA GORDA FL 33982	PHYSICIAN 21ST CENTURY ONCOLOGY	DEMOCRATIC EXECUTIVE COMMITTEE OF FLORIDAC00005561	2025-11-30	$40	Primary (P)	Filing 1958867 · amendedFEC filing ↗
5	MELSER, MARC A. MDPUNTA GORDA FL 33982	PHYSICIAN 21ST CENTURY ONCOLOGY	DEMOCRATIC EXECUTIVE COMMITTEE OF FLORIDAC00005561	2025-07-31	$40	Primary (P)	Filing 1912784 · amendedFEC filing ↗
6	MELSER, MARC A. MDPUNTA GORDA FL 33982	PHYSICIAN 21ST CENTURY ONCOLOGY	DEMOCRATIC EXECUTIVE COMMITTEE OF FLORIDAC00005561	2025-08-31	$40	Primary (P)	Filing 1916137FEC filing ↗
7	MELSER, MARC A. MDPUNTA GORDA FL 33982	PHYSICIAN 21ST CENTURY ONCOLOGY	DEMOCRATIC EXECUTIVE COMMITTEE OF FLORIDAC00005561	2025-06-30	$40	Primary (P)	Filing 1904896FEC filing ↗
8	MELSER, MARC A. MDPUNTA GORDA FL 33982	PHYSICIAN 21ST CENTURY ONCOLOGY	DEMOCRATIC EXECUTIVE COMMITTEE OF FLORIDAC00005561	2025-12-31	$40	Primary (P)	Filing 1958871 · amendedFEC filing ↗
9	MELSER, MARC A. MDPUNTA GORDA FL 33982	PHYSICIAN 21ST CENTURY ONCOLOGY	DEMOCRATIC EXECUTIVE COMMITTEE OF FLORIDAC00005561	2025-09-30	$40	Primary (P)	Filing 1923129FEC filing ↗
10	MELSER, MARC A. MDPUNTA GORDA FL 33982	PHYSICIAN 21ST CENTURY ONCOLOGY	DEMOCRATIC EXECUTIVE COMMITTEE OF FLORIDAC00005561	2026-06-30	$40	Primary (P)	Filing 2009341 · amendedFEC filing ↗
11	MELSER, MARC A. MDPUNTA GORDA FL 33982	PHYSICIAN 21ST CENTURY ONCOLOGY	DEMOCRATIC EXECUTIVE COMMITTEE OF FLORIDAC00005561	2026-07-31	$40	Primary (P)	Filing 2009389 · amendedFEC filing ↗
12	TIRADO, AUGUSTOMIAMI FL 33143	PHYSICIAN 21ST CENTURY ONCOLOGY	NRSCC00027466	2026-07-29	$35	Primary (P)	EARMARKED FROM WINREDFiling 2008793FEC filing ↗
13	TIRADO, AUGUSTOMIAMI FL 33143	PHYSICIAN 21ST CENTURY ONCOLOGY	NRSCC00027466	2025-10-29	$35	Primary (P)	EARMARKED FROM WINREDFiling 1926357FEC filing ↗
14	TIRADO, AUGUSTOMIAMI FL 33143	PHYSICIAN 21ST CENTURY ONCOLOGY	NRSCC00027466	2025-11-29	$35	Primary (P)	EARMARKED FROM WINREDFiling 1929731FEC filing ↗
15	TIRADO, AUGUSTOMIAMI FL 33143	PHYSICIAN 21ST CENTURY ONCOLOGY	NRSCC00027466	2025-06-29	$35	Primary (P)	EARMARKED FROM WINREDFiling 1922836 · amendedFEC filing ↗
16	TIRADO, AUGUSTOMIAMI FL 33143	PHYSICIAN 21ST CENTURY ONCOLOGY	NRSCC00027466	2025-08-29	$35	Primary (P)	EARMARKED FROM WINREDFiling 1916271FEC filing ↗
17	TIRADO, AUGUSTOMIAMI FL 33143	PHYSICIAN 21ST CENTURY ONCOLOGY	NRSCC00027466	2026-06-29	$35	Primary (P)	EARMARKED FROM WINREDFiling 2000421FEC filing ↗
18	TIRADO, AUGUSTOMIAMI FL 33143	PHYSICIAN 21ST CENTURY ONCOLOGY	NRSCC00027466	2025-07-29	$35	Primary (P)	EARMARKED FROM WINREDFiling 1912444FEC filing ↗
19	TIRADO, AUGUSTOMIAMI FL 33143	PHYSICIAN 21ST CENTURY ONCOLOGY	NRSCC00027466	2025-12-29	$35	Primary (P)	EARMARKED FROM WINREDFiling 1942833FEC filing ↗
20	TIRADO, AUGUSTOMIAMI FL 33143	PHYSICIAN 21ST CENTURY ONCOLOGY	NRSCC00027466	2025-09-29	$35	Primary (P)	EARMARKED FROM WINREDFiling 1922926FEC filing ↗

One page is fetched at a time, with one extra row to check for the next page. Current amendment versions are selected before pagination. Raw reported names and filing values are preserved. This list covers locally ingested FEC individual-contribution records, not undisclosed or unitemized contributor identities.