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PeerBasis
Compensation Comparability Determination

Cambridge Health Alliance Physicians

Executive Director / CEO

EIN 043167608
MA · NTEE E31Z
FY ending 2023-06-30
June 9, 2026

This analysis benchmarks the total compensation of Sivamainthan Vithiananthan Md, Executive Director / CEO ($628,041) against every comparable organization that fit the selection criteria — 347 in total — drawn systematically from IRS Form 990 filings, not a hand-picked subset.

Compensation sits at approximately the 62nd percentile of comparable organizationswithin the typical range

Benchmarked executive: Sivamainthan Vithiananthan Md — reported title “CHIEF OF SERVICE, SURGERY”, selected as the organization's highest-paid individual — no exact title match, so confirm this is a comparable role.

How comparable organizations were selected

347 organizations qualified on sector, size, and geography 347 within the band form the benchmarked peer set.

Distribution of comparable compensation

$16,041 total compensation of comparable organizations → $21,360,476 $628,041
$57,89510th
$160,94125th
$509,593Median
$810,45475th
$1,361,89390th
$628,041This org · 62nd
p10$57,895
p25$160,941
p50$509,593
p75$810,454
p90$1,361,893
$628,041

Comparable organizations

Each figure is Form 990 Part VII columns D + F (reportable pay plus other compensation and benefits; column F may include amounts from related organizations), normalized to MA cost of living (BEA RPP, 2023) and to its filing year (CPI-U); the reported amount is on each linked 990.

OrganizationStateRevenueMatched titleComp
(reported)
Comp
(adjusted)
FY
Northwell Health Foundation NY$155,789,579 President & Ceo $70,612 $71,006 2023
Emma L Bixby Medical Center OH$155,838,700 Ceo $14,012 $16,041 2024
Children's National Medical Center DC$155,723,620 President Of Hsc $120,412 $117,586 2023
Bon Secours Medical Group Greenville Specialty Care Llc SC$155,644,298 Electrophysicologist $1,827,562 $2,060,827 2024
Siu Physicians & Surgeons Inc IL$155,600,365 Dean And Ceo $378,522 $414,116 2023
🔒 342 more comparable organizations — included in the purchased report

Comp (reported) is the figure on each organization's Form 990 (columns D + F); Comp (adjusted) normalizes it to MA cost of living and 2023 dollars. Click any organization to verify the figure on ProPublica.

Methodology

Comparable organizations were drawn from electronically filed IRS Form 990 returns and matched on sector (NTEE code), budget (a size-adaptive revenue band that tightens as the organization grows), and geography (same-state first, broadening only when too few peers qualify); every organization within the band forms the peer set. To compare fairly across regions and years, peer compensation is normalized to MA cost of living (BEA Regional Price Parities, 2023) and to the subject's filing year (CPI-U). The figure benchmarked is Form 990 Part VII, Section A, columns D + F — reportable pay plus other compensation, benefits, and deferred amounts (column F may include amounts from related organizations) — with the chief executive matched by role. Related-organization amounts (column E) and institutional trustees are excluded. Full methodology: peerbasis.org/methodology.

Sample, role match & sensitivity

Sensitivity — the subject's percentile under alternative compensation definitions:

BasisSubject percentile
Total compensation (D + F), cost-of-living + inflation adjusted — the PeerBasis default62nd
Total compensation (D + F), as reported (no adjustments)64th
Reportable pay only (column D), adjusted68th
All sources (D + E + F), adjusted31st

If the percentile moves materially across these definitions, the result is sensitive to methodology choices, and the board should weigh which basis best fits its facts.

Rebuttable presumption of reasonableness · 26 CFR 53.4958-6

Compensation paid by a tax-exempt organization is presumed reasonable — shifting the burden to the IRS — when three requirements are met. This report supplies the comparability data for the second. The board should record the following in its minutes concurrently with its decision:

Ready-to-adopt board minutes — executive compensation

🔒 The complete minutes language — three numbered resolutions pre-filled with this organization, the 347-organization comparison, the date, and the percentile finding, ready to paste into your minutes — is included in the purchased report.

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Sources: IRS Form 990 e-file data (apps.irs.gov); IRS Business Master File (NTEE classification). Every figure traces to an original public filing — click any organization above to verify it on ProPublica. PeerBasis is a service of Prismind Analytics; its methodology is published, was commissioned for independent adversarial review, and discloses its own limitations. This report is comparability data to support a board's good-faith determination under IRC 4958; it is not legal or tax advice. Generated by PeerBasis on June 9, 2026.