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Psychologists in O'Fallon, IL: 11 specialties ranked (2026)

11 ranked specialtiesUpdated 0 paid placements in any rankingHow we rank

11 specialties have a ranked list for O'Fallon, IL. Each list ranks the practices that serve the city by RP Score. The largest list by ranked practices is psychiatrists, with 174.

Top 3 in each specialty in O'Fallon

Ranked by RP Score among the practices that serve the city. Open a specialty for its full list.

Ranked by the RP Score from public listing data, not by treatment outcomes; Sponsored placements are shown separately and never change rank.

More specialties listed in O'Fallon

Fewer than 5 practices qualify to rank here. Linked specialties open the Illinois list.

How O'Fallon psychologists are ranked

Each specialty list scores every practice that serves O'Fallon on the same RP Score, from 0 to 100.

Reputation, review volume, recency, availability, specialty focus, proximity, claimed profile and partnered each carry a fixed weight.

Rankings can’t be bought. Sponsored practices are labelled, never numbered and never change a rank.

Read the full methodO'Fallon psychology and therapy report 2026All Illinois cities