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Side-by-Side Comparison

Castle Connolly vs Vitals: Side-by-Side Comparison

Castle Connolly curates a selective annual list of peer-nominated Top Doctors. Vitals is a consumer review aggregator with patient-submitted ratings on a broader set of providers. They serve similar end users — patients choosing physicians — but from opposite methodological poles: curation vs. volume.

Dimension by dimension

Castle Connolly vs Vitals, across 8 dimensions

DimensionCastle ConnollyVitals
Data typePeer-nominated physician recognition — selective annual list based on peer survey and credentialing reviewPatient reviews and ratings — consumer-submitted
Coverage~10,000 Top Doctors annually; selective by design~1 million+ provider profiles
Refresh cadenceAnnual— (not publicly disclosed)
License / CostFree consumer search; directory licensing — pricing not publicFree for patients; provider plans — pricing not public
API accessNo public APINo public API
Source provenancePeer nomination + Castle Connolly credentialing review; criteria published at a high levelConsumer-submitted reviews; provenance not publicly documented at field level
Primary use casePremium specialist discovery for complex and elective careGeneral physician discovery, review comparison
PricingFree consumer search; media licensing — pricing not publicFree for patients; provider packages — pricing not public

Cells marked “—” indicate values not publicly documented by the respective platform. No data has been estimated or fabricated.

Honest fit

Which platform fits your team

When to use Castle Connolly

Use Castle Connolly when the audience needs a curated peer-recognition signal, particularly for complex elective procedures where a small peer-nominated shortlist carries more weight than review volume.

https://www.castleconnolly.com

When to use Vitals

Use Vitals for general patient-review aggregation across a broader set of providers. It covers more providers than Castle Connolly but with lower selectivity.

https://www.vitals.com

FAQ

Common questions

Which is more credible — Castle Connolly Top Doctor or a Vitals patient rating?
They measure different things. Castle Connolly reflects peer professional regard — physicians choosing which colleagues they would refer patients to. Vitals reflects patient experience — how patients rated their encounters. Both are self-reported and neither is a regulatory credential. For clinical credentialing, state medical board licensure and CMS PECOS enrollment are authoritative.
How do patients use Castle Connolly vs Vitals?
Castle Connolly is primarily used when selecting a specialist for a complex or elective procedure where the patient wants peer-validated expertise. Vitals is used for general provider discovery when review volume and accessibility are the primary filters.
Are these platforms' ratings independently auditable?
Neither provides a publicly documented per-rating audit trail. Castle Connolly's selection criteria are described at a high level; Vitals' review collection methodology is not formally published. For independently auditable quality data, CMS Care Compare (for facilities) and state medical board disciplinary records (for individuals) are the primary sources.
Do Castle Connolly or Vitals publish their data for research?
Neither publishes bulk data or a public API for research. Federal primary sources — CMS NPPES, CMS Care Compare, CMS Open Payments — are the reproducible, publicly downloadable inputs for academic or policy research on provider quality.

Last updated 2026-05-31. See all comparisons at /compare →

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What’s on file, by the numbers

Platform snapshot · 2026-08-30

13.4Mproviders & companiesProviders, organizations, owners, and facilities on file
26.2Msource-linked factsSource-linked field facts in the dated platform snapshot
90sources with dataDistinct snapshot source IDs with at least one positive record count
16fresh sourcesDistinct source IDs whose latest positive-data snapshot falls within the preceding 45 days
111sources integratedActive registry rows; integration does not establish a load
13state Medicaid jurisdictionsDistinct states represented in the state-exclusions serving table

Integrated, with-data, and fresh-observation counts are separate. No platform-wide source-completeness count is published. Completeness is source-specific and must be evaluated against the named source's expected scope. State coverage is a separate jurisdiction measure.

Source authority is record-specific

Use the issuer named on the record.

Fonteum spans federal, state, and global public publishers. A source page or returned record identifies its issuer and dataset where that metadata is available. A platform registry count does not assign every page to one authority or establish loaded, fresh, or complete coverage.

Browse source records and their stated limitations →

Reproducible by design

Inspect the evidence each published figure actually supplies.

Source and date

Research pages expose the named public file and observation date where those fields are available. Source-file SHA-256 coverage is separate; facts do not currently link deterministically to signatures.

Available derivation

Studies with a retained release and committed derivation link the SQL or method used. Other studies state the evidence and reproduction limits they actually have.

Daily observations

Dated table row-count observations can detect local drift. They do not imply that an upstream publisher released or Fonteum ingested new data that day.

Named medical review

Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.

Read the full provenance and attestation methodology →

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