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Katherine Flagg, PhD Clinical PsychologistPsychologist in Brookline, MA

Katherine Flagg, PhD Clinical Psychologist is a psychologist at 124 Harvard St, Brookline, MA 02446, ranked #6 of 296 psychologists in Brookline and rated 2.3 from 3 Google reviews.

This profile is built from public listing data. Confirm the provider’s license, services, fees and availability with the practice before you book.

Brookline, MAUpdated 0 paid placements in any rankingHow we rank

Call (781) 740-4847

Key facts

Key facts about Katherine Flagg, PhD Clinical Psychologist
Address124 Harvard St, Brookline, MA 02446Get directions
Phone(781) 740-4847
Google rating2.3 from 3 Google reviews

Specialties

Each specialty shows the evidence we matched it on.

Service area

Serves Brookline and 11 towns within 20 miles: Jamaica Plain, Cambridge, Boston, Somerville, South Boston, Watertown, Newton, Belmont, Medford, Arlington and Chelsea.

Based in Brookline, MAView on map

Questions about Katherine Flagg, PhD Clinical Psychologist

How is Katherine Flagg, PhD Clinical Psychologist ranked in Brookline?

Katherine Flagg, PhD Clinical Psychologist is ranked #6 of 296 psychologists in Brookline by RP Score, with 74 out of 100 as of November 2026. The score weighs reputation, review volume, recency, availability, specialty focus, proximity, claimed profile and partnered. No business can pay to change its rank.

What areas does Katherine Flagg, PhD Clinical Psychologist serve?

Serves Brookline and 11 towns within 20 miles: Jamaica Plain, Cambridge, Boston, Somerville, South Boston, Watertown, Newton, Belmont, Medford, Arlington and Chelsea. The list is based on the business's location and the usual service radius for psychology. Confirm your address is covered when you call.

What do Google reviews say about Katherine Flagg, PhD Clinical Psychologist?

Katherine Flagg, PhD Clinical Psychologist has a rating of 2.3 from 3 Google reviews. The RP Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact Katherine Flagg, PhD Clinical Psychologist?

Call Katherine Flagg, PhD Clinical Psychologist on (781) 740-4847. The business is at 124 Harvard St, Brookline, MA 02446. Ask about fees, insurance and openings before you book a first session.

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Compare nearby psychologists

Katherine Flagg, PhD Clinical Psychologist compared with nearby businesses
BusinessRankRP ScoreGoogle ratingSaturdaySundayDistance away
Katherine Flagg, PhD Clinical Psychologist (this business)—742.3 (3)——
Trimble David#4744.0 (3)——0.4 mi
MSW Psychological Associates#5745.0 (9)YesYes2.1 mi
Simona Bujoreanu, PHD#7732.0 (4)——0.9 mi

See all 296 ranked psychologists in Brookline