76/100RP Score
Ranked #1 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.8★ from 218 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Best Psychologists in Ontario, CA (2026)
174 psychologists ranked by RP ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Ontario: Dr. Crawford and Associates Psychological Services, RP Score 76/100; 4.8★ from 218 Google reviews; open Saturdays until 2 PM.
- 37
Most-reviewed: High Desert Psychological Services, 593 Google reviews at 4.9★, the most of 174 ranked; ranked #37.
Rankings can't be bought. Psychologists can't pay to change their rank or score. How we rank
174 Ontario psychologists are ranked here by RP Score, from eight published factors. 55 open Saturdays and 18 open Sundays, based on posted hours. The median Google rating is 4.3★ across 174 rated practices.
Top 10 psychologists in Ontario at a glance
Ranked by the RP Score from public listing data, not by treatment outcomes; Sponsored placements are shown separately and never change rank.
| Rank | Business | RP Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Dr. Crawford and Associates Psychological Services | 76 | 4.8★ (218) | Ontario | Sat | Overall |
| 2 | Pardis Amirhoushmand, PHD | 72 | 4.0★ (12) | Ontario | Sat · Evenings | — |
| 3 | Advanced Psychological Associates and Wellness Center | 71 | 4.0★ (42) | Rancho Cucamonga, 5 mi away | Sat · Sun · Evenings | — |
| 4 | David M. Steinberger, PHD | 71 | 3.7★ (3) | Chino, 4 mi away | — | — |
| 5 | Friends of Family Health Center | 71 | 4.4★ (68) | Ontario | — | — |
| 6 | Wallstrom Dennis W PHD | 71 | 5.0★ (3) | Claremont, 5 mi away | — | — |
| 7 | Dr. Aubrey H. Fine | 71 | 4.3★ (3) | Claremont, 4 mi away | — | — |
| 8 | Diamond Club Athletics | 70 | 5.0★ (98) | Rancho Cucamonga, 7 mi away | Sat · Evenings | — |
| 9 | Kinsman John PhD | 70 | 3.4★ (5) | Rancho Cucamonga, 5 mi away | — | — |
| 10 | Carlson Eugene A | 70 | 5.0★ (3) | Rancho Cucamonga, 6 mi away | — | — |
The 174 best psychologists in Ontario, ranked
Ordered by RP Score, a 0–100 score from eight published factors. Paid placement never changes the order.
Ranked by the RP Score from public listing data, not by treatment outcomes; Sponsored placements are shown separately and never change rank.
Based in Ontario
72/100RP ScoreRanked #2 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.0★ from 12 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Rancho Cucamonga, 5 mi away
71/100RP ScoreRanked #3 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.0★ from 42 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Chino, 4 mi away
71/100RP ScoreRanked #4 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 3.7★ from 3 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Ontario
71/100RP ScoreRanked #5 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.4★ from 68 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Claremont, 5 mi away
71/100RP ScoreRanked #6 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 5.0★ from 3 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Claremont, 4 mi away
71/100RP ScoreRanked #7 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.3★ from 3 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Rancho Cucamonga, 7 mi away
70/100RP ScoreRanked #8 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 5.0★ from 98 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Rancho Cucamonga, 5 mi away
70/100RP ScoreRanked #9 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 3.4★ from 5 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
#10 Carlson Eugene A
Based in Rancho Cucamonga, 6 mi away
70/100RP ScoreRanked #10 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 5.0★ from 3 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Rancho Cucamonga, 6 mi away
70/100RP ScoreRanked #11 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 5.0★ from 3 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Rancho Cucamonga, 5 mi away
69/100RP ScoreRanked #12 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 3.7★ from 3 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Rancho Cucamonga, 5 mi away
69/100RP ScoreRanked #13 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 2.7★ from 7 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Upland, 3 mi away
69/100RP ScoreRanked #14 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.0★ from 4 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Claremont, 4 mi away
69/100RP ScoreRanked #15 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 5.0★ from 3 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Ontario
68/100RP ScoreRanked #16 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.0★ from 4 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
#17 Bright Horizon
Based in Claremont, 6 mi away
68/100RP ScoreRanked #17 because of specialty focus and its Google rating: listed on Google as “Child psychologist”, 1.7★ from 3 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Chino, 4 mi away
68/100RP ScoreRanked #18 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 3.2★ from 9 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Claremont, 4 mi away
68/100RP ScoreRanked #19 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.9★ from 39 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Chino Hills, 7 mi away
67/100RP ScoreRanked #20 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.7★ from 31 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Diamond Bar, 9 mi away
67/100RP ScoreRanked #21 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 5.0★ from 3 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Chino Hills, 7 mi away
66/100RP ScoreRanked #22 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 5.0★ from 3 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Upland, 3 mi away
66/100RP ScoreRanked #23 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.0★ from 4 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Upland, 3 mi away
66/100RP ScoreRanked #24 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 3.3★ from 24 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in West Covina, 13 mi away
65/100RP ScoreRanked #25 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 5.0★ from 19 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Psychologists ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in RP Score order; each links to its profile. We publish the top 50 of 174 ranked psychologists here; the rest are on their profiles.
Also serving Ontario
20 more psychologists within 20 mi that we can't rank yet: too few reviews, or a specialty we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| ACT Family Counseling - Ontario | 2.5★ (25) | In Ontario |
| Advocate Family Counseling | 5.0★ (6) | In Ontario |
| Autism Center | 4.9★ (433) | In Ontario |
| Behavior Genius | 4.1★ (42) | In Ontario |
| Behavioral Autism Therapies | 3.9★ (15) | In Ontario |
| Best Life Counseling Services | 5.0★ (9) | In Ontario |
| Blue Oak Counseling Services, Inc. | 4.5★ (32) | In Ontario |
| Castle Rock Family Services | 4.0★ (19) | In Ontario |
| DBH Walk-In Clinics | 3.5★ (2) | In Ontario |
| Finding Hope Counseling Services | 4.0★ (4) | In Ontario |
| Gloria Sudeta NP | 5.0★ (4) | In Ontario |
| Kaiser Permanente Ontario Mental Health Offices | 4.1★ (18) | In Ontario |
| Ken Olson Counseling | 3.0★ (4) | In Ontario |
| Mariposa Community Counseling | 3.6★ (25) | In Ontario |
| Milestone Mental Health Center | 4.9★ (125) | In Ontario |
| PsychHealing Counseling Center | 3.4★ (20) | In Ontario |
| Renewed Mental Health Group | 4.8★ (123) | In Ontario |
| Restore Psychiatry and Wellness | 4.7★ (39) | In Ontario |
| Spirited By Truth | 5.0★ (6) | In Ontario |
| Thriving Minds - Psychiatric Services of California | 5.0★ (15) | In Ontario |
How we ranked Ontario psychologists
We scored 174 Ontario psychologists on eight factors, weighted as shown. A practice is ranked when its specialty is confirmed and it has 3 or more Google reviews or a claimed profile. A practice with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed November 9, 2026.
Paid placement never changes a rank or score. Sponsored businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Ontario data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Review volume | 5% | Number of Google reviews, compared with the most-reviewed practice on the list | Measured |
| Recency | 5% | Share of Google reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, and round-the-clock or same-day availability | Measured |
| Specialty focus | 25% | How clearly the practice does this specialty (its Google category and name) | Measured |
| Proximity | 15% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The practice has claimed its Ranked Psychologists profile (free or paid earn the same) | Measured |
| Partnered | 5% | The practice links to Ranked Psychologists from its own website with our badge, checked periodically | Measured |
How to choose a psychologist
- Check the license with the state or provincial board that issued it; most boards publish a free online lookup.
- Make sure they regularly work with clients who have your concern, and ask what approach they use and why.
- If you may need testing as well as therapy (for example for ADHD or memory concerns), ask whether the practice does assessments itself.
- Ask about fees, insurance and the cancellation policy before the first session. In the US, if you are uninsured or paying yourself, you can ask for a good faith estimate of expected charges.
- Check practical fit: in-person or online sessions, evening times, and how soon they have an opening.
- After a few sessions, ask yourself whether you feel heard. Changing to a different provider is common and fine.
Questions to ask a psychologist
- Are you accepting new clients, and how soon could I start?
- Which license do you hold, and in which state or province?
- How often do you work with concerns like mine?
- Do you offer psychological testing, or therapy only?
- What do you charge per session, and do you take my insurance or provide a superbill?
- Do you offer online sessions?
- What is your cancellation policy?
- What do you keep confidential, and when would you have to share information?
Terms explained
- PhD / PsyD
- Doctoral degrees in psychology. A PhD usually has a stronger research focus, a PsyD a stronger clinical focus; both can lead to a psychologist license.
- Licensed psychologist
- A person licensed by a state or provincial psychology board to practice psychology. The title is protected by law.
- Psychological associate
- In some states and provinces, a master’s-level practitioner licensed or registered by the psychology board, often with supervision requirements.
- LPC / LMHC / LCPC
- US licenses for professional or mental health counselors (the name differs by state). They provide counseling and therapy.
- LCSW
- Licensed clinical social worker: a master’s-level social worker licensed to provide therapy.
- LMFT
- Licensed marriage and family therapist: licensed to treat individuals, couples and families with a focus on relationships.
- RP / RCC
- Registered psychotherapist (Ontario) and registered clinical counsellor (British Columbia): Canadian titles for licensed therapy providers.
- PSYPACT
- An interstate agreement that lets psychologists licensed in a member state provide telepsychology to clients in other member states once they hold the required authorization.
- Telehealth
- Sessions held by secure video or phone instead of in person. The provider generally needs to be licensed where the client is located.
- CBT
- Cognitive behavioral therapy: a structured talk therapy that works on the links between thoughts, feelings and behavior.
- DBT
- Dialectical behavior therapy: a form of CBT that teaches skills for managing intense emotions and relationships.
- ERP
- Exposure and response prevention: a form of CBT used for OCD.
Psychologists in Ontario: frequently asked questions
Who is the best psychologist in Ontario?
By RP Score, the highest-ranked psychologist in Ontario, CA is Dr. Crawford and Associates Psychological Services with an RP Score of 76/100. It has 4.8★ from 218 Google reviews. It is open Saturdays until 2 PM. Pardis Amirhoushmand, PHD (#2) and Advanced Psychological Associates and Wellness Center (#3) follow. We ranked 174 psychologists on eight factors, last updated November 9, 2026.
How many psychologists are there in Ontario?
RankedPsychologists ranks 174 psychologists serving Ontario, CA. 5 of them are based in Ontario; the rest serve it from nearby towns. Another 20 within 20 mi are listed but not ranked yet. Counts are as of November 2026.
What should I do if I need help right now?
In crisis or thinking about suicide? Call or text 988 (US and Canada), any time. In an emergency, call 911. This site cannot help in an emergency.
Which psychologists in Ontario work on weekends?
55 of 174 ranked psychologists post Saturday hours and 18 post Sunday hours. The highest-ranked open Saturdays are Dr. Crawford and Associates Psychological Services (#1), Pardis Amirhoushmand, PHD (#2) and Advanced Psychological Associates and Wellness Center (#3). Posted hours are office hours; many practices also offer evening or online sessions by appointment.
What Google rating do Ontario psychologists have?
The median Google rating among 174 rated psychologists in Ontario is 4.3★, with a median of 7 reviews. High Desert Psychological Services has the most, 593 reviews, and ranks #37. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does RankedPsychologists rank psychologists?
Each psychologist gets a 0–100 RP Score from eight published factors, led by reputation (25%), specialty focus (25%), proximity (15%) and availability (10%). A practice with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only practices with a confirmed specialty and 3 or more reviews, or a claimed profile, are ranked.
Do psychologists outside Ontario count in this ranking?
Yes, if they are within 20 mi of the Ontario city center, our service radius for psychologists. Each listing shows where the practice is based and how far away it is. Proximity is 15% of the RP Score, so a nearby practice gets a small edge.
Can psychologists pay to rank higher on RankedPsychologists?
No. The RP Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured practices may appear above the list, labelled Sponsored and showing their honest rank.
How are psychologists in Ontario ranked?
Each practice gets an RP Score from 0 to 100 from 8 published factors, including its Google rating, how clearly it focuses on psychology and how close it is. Sponsored placements are shown separately and never change rank. The score does not measure treatment outcomes.
What is the difference between a psychologist and a therapist?
“Psychologist” is a protected title: only people licensed by a state or provincial psychology board may use it. Most hold a doctorate (PhD or PsyD) and are trained in psychological testing as well as therapy. “Therapist” is a general word: licensed counselors, clinical social workers and marriage and family therapists also provide therapy under their own licenses.
Can I see a psychologist online?
Often, yes. Licensing generally follows where you are during the session, so the provider needs to be licensed or authorized there. In the US, psychologists in PSYPACT member states can offer telepsychology to clients in other member states; counselors and social workers have their own rules. In Canada, ask whether the provider is registered in your province.
What if I need help right now?
Do not wait for a consultation. Call or text 988 (US and Canada) if you are in crisis or thinking about suicide, at any time. In an emergency, call 911.
Update log for Ontario
- November 2026: RP Scores recalculated for 174 psychologists serving Ontario.
- November 2026: 1 duplicate listing merged.
More psychologists and Ontario pages
Psychologists near Ontario
- Psychologists in Upland, CA148 ranked
- Psychologists in Montclair, CA168 ranked
- Psychologists in Chino, CA223 ranked
- Psychologists in Rancho Cucamonga, CA145 ranked
- Psychologists in Claremont, CA152 ranked
- Psychologists in Pomona, CA186 ranked
- Psychologists in La Verne, CA155 ranked
- Psychologists in Chino Hills, CA230 ranked
- Psychologists in Eastvale, CA165 ranked
- Psychologists in Jurupa Valley, CA161 ranked
Other specialties in Ontario
- Therapists and counselors in Ontario321 ranked
- Child and teen therapists in Ontario89 ranked
- Couples therapists in Ontario171 ranked
- Family therapists in Ontario155 ranked
- Neuropsychologists in Ontario33 ranked
- Psychological testing practices in Ontario5 ranked
- Anxiety and OCD therapists in Ontario5 ranked
- Trauma and PTSD therapists in Ontario23 ranked
- Eating disorder therapists in Ontario44 ranked
- Psychiatrists in Ontario611 ranked
- Clinical social workers in Ontario139 ranked
- Addiction counselors in Ontario537 ranked
- ABA therapy providers in Ontario102 ranked
- All psychologists in Ontario