76/100RP Score
Ranked #1 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.4★ from 7 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Best Psychologists in Fullerton, CA (2026)
344 psychologists ranked by RP ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Fullerton: Samantha Cox, RP Score 76/100; 4.4★ from 7 Google reviews.
- 40
Most-reviewed: Familias Unidas LA, 1,072 Google reviews at 5.0★, the most of 344 ranked; ranked #40.
Rankings can't be bought. Psychologists can't pay to change their rank or score. How we rank
344 Fullerton psychologists are ranked here by RP Score, from eight published factors. 106 open Saturdays and 51 open Sundays, based on posted hours. The median Google rating is 4.6★ across 344 rated practices.
Top 10 psychologists in Fullerton 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 | Samantha Cox | 76 | 4.4★ (7) | Fullerton | — | Overall |
| 2 | Pacific Coast Psychological Associates | 75 | 4.0★ (8) | Fullerton | — | — |
| 3 | Northbound Treatment Services | 74 | 4.6★ (253) | Garden Grove, 8 mi away | Sat · Sun · Evenings | — |
| 4 | Oak Health Center | 73 | 5.0★ (132) | Fullerton | — | — |
| 5 | Dr. Judith Jensen | 72 | 3.0★ (4) | La Habra, 3 mi away | — | — |
| 6 | Dr. Lois Nightingale PhD APC | 70 | 3.7★ (3) | Yorba Linda, 5 mi away | — | — |
| 7 | Sharon Stafford PhD | 70 | 3.8★ (4) | Placentia, 4 mi away | Sat · Evenings | — |
| 8 | Casa Capri Recovery | 69 | 4.7★ (156) | Newport Beach, 15 mi away | Sat · Sun · Evenings | — |
| 9 | Tammy A. Ouellette, Psy.D. | 69 | 3.5★ (8) | Fullerton | Evenings | — |
| 10 | James P Hall D.O. | 69 | 4.1★ (31) | Cypress, 8 mi away | — | — |
The 344 best psychologists in Fullerton, 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 Fullerton
75/100RP ScoreRanked #2 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.0★ from 8 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Garden Grove, 8 mi away
74/100RP ScoreRanked #3 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.6★ from 253 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Fullerton
73/100RP ScoreRanked #4 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 5.0★ from 132 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in La Habra, 3 mi away
72/100RP ScoreRanked #5 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 3.0★ from 4 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Yorba Linda, 5 mi away
70/100RP ScoreRanked #6 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 Placentia, 4 mi away
70/100RP ScoreRanked #7 because of specialty focus and its Google rating: listed on Google as “Child psychologist”, 3.8★ from 4 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Newport Beach, 15 mi away
69/100RP ScoreRanked #8 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.7★ from 156 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Fullerton
69/100RP ScoreRanked #9 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 3.5★ from 8 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Cypress, 8 mi away
69/100RP ScoreRanked #10 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.1★ from 31 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Brea, 4 mi away
69/100RP ScoreRanked #11 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 5.0★ from 38 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Anaheim, 7 mi away
69/100RP ScoreRanked #12 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.2★ from 5 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Whittier, 7 mi away
69/100RP ScoreRanked #13 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 Whittier, 7 mi away
69/100RP ScoreRanked #14 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 Norwalk, 9 mi away
68/100RP ScoreRanked #15 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.3★ from 6 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Fullerton
68/100RP ScoreRanked #16 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 3.7★ from 3 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Santa Ana, 8 mi away
68/100RP ScoreRanked #17 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 3.8★ from 6 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Fullerton
68/100RP ScoreRanked #18 because of its Google rating and specialty focus: 4.8★ from 18 Google reviews, listed on Google as “Marriage or relationship counselor”.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in La Mirada, 5 mi away
68/100RP ScoreRanked #19 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.6★ from 5 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Cerritos, 10 mi away
68/100RP ScoreRanked #20 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 5.0★ from 11 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
#21 Dr. Amy Stark
Based in Santa Ana, 7 mi away
67/100RP ScoreRanked #21 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 1.7★ from 6 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Whittier, 9 mi away
67/100RP ScoreRanked #22 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.2★ from 10 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Yorba Linda, 6 mi away
67/100RP ScoreRanked #23 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 3.0★ from 6 Google reviews.
Based on 7 of 8 factors; recency not yet collected.
Based in Cerritos, 10 mi away
67/100RP ScoreRanked #24 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 5.0★ from 5 Google reviews.
Based on 6 of 8 factors; recency and availability not yet collected.
Based in Los Alamitos, 9 mi away
67/100RP ScoreRanked #25 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.
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 344 ranked psychologists here; the rest are on their profiles.
Also serving Fullerton
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 |
|---|---|---|
| Ann F. Golay, MS | 5.0★ (2) | In Fullerton |
| Benedict Choi, LMFT | 5.0★ (6) | In Fullerton |
| California State University, Fullerton - TitanHEALTH | 2.4★ (13) | In Fullerton |
| Child Guidance Center Fullerton | 4.0★ (8) | In Fullerton |
| Clear Mind Psychiatry | 5.0★ (3) | In Fullerton |
| Couples TLC Counseling, Inc. | 3.7★ (3) | In Fullerton |
| Dennis Williams MFT | 5.0★ (10) | In Fullerton |
| Dr. Hina Sidhu | 2.3★ (3) | In Fullerton |
| Dr. Kevin Downing, PhD | 5.0★ (64) | In Fullerton |
| Free at Heart Online Therapy | 3.0★ (9) | In Fullerton |
| Gather and Grow OC Therapy | 3.4★ (5) | In Fullerton |
| Glory Mental Health | 4.7★ (12) | In Fullerton |
| Joan B. Land, MS | 5.0★ (2) | In Fullerton |
| Karen Schipani - Tedrahn, MFT | 4.0★ (4) | In Fullerton |
| Psyche and Soma Psychotherapy Group | 5.0★ (6) | In Fullerton |
| Richard A. Miller, MA | 4.0★ (4) | In Fullerton |
| Sandhya R. Gudapati, MD | 3.9★ (127) | In Fullerton |
| Steven Su, LCSW | 5.0★ (3) | In Fullerton |
| Webb Debra A | 3.0★ (2) | In Fullerton |
| Whitcomb Robert L | 5.0★ (2) | In Fullerton |
How we ranked Fullerton psychologists
We scored 344 Fullerton 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 Fullerton 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 Fullerton: frequently asked questions
Who is the best psychologist in Fullerton?
By RP Score, the highest-ranked psychologist in Fullerton, CA is Samantha Cox with an RP Score of 76/100. It has 4.4★ from 7 Google reviews. Pacific Coast Psychological Associates (#2) and Northbound Treatment Services (#3) follow. We ranked 344 psychologists on eight factors, last updated November 9, 2026.
How many psychologists are there in Fullerton?
RankedPsychologists ranks 344 psychologists serving Fullerton, CA. 6 of them are based in Fullerton; 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 Fullerton work on weekends?
106 of 344 ranked psychologists post Saturday hours and 51 post Sunday hours. The highest-ranked open Saturdays are Northbound Treatment Services (#3), Sharon Stafford PhD (#7) and Casa Capri Recovery (#8). Posted hours are office hours; many practices also offer evening or online sessions by appointment.
What Google rating do Fullerton psychologists have?
The median Google rating among 344 rated psychologists in Fullerton is 4.6★, with a median of 7 reviews. Familias Unidas LA has the most, 1,072 reviews, and ranks #40. 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 Fullerton count in this ranking?
Yes, if they are within 20 mi of the Fullerton 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 Fullerton 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 Fullerton
- November 2026: RP Scores recalculated for 344 psychologists serving Fullerton.
- November 2026: 2 duplicate listings merged.
More psychologists and Fullerton pages
Psychologists near Fullerton
- Psychologists in Anaheim, CA330 ranked
- Psychologists in Placentia, CA371 ranked
- Psychologists in Brea, CA361 ranked
- Psychologists in Buena Park, CA361 ranked
- Psychologists in La Habra, CA405 ranked
- Psychologists in La Mirada, CA401 ranked
- Psychologists in Stanton, CA330 ranked
- Psychologists in Yorba Linda, CA367 ranked
- Psychologists in Garden Grove, CA331 ranked
- Psychologists in Orange, CA363 ranked
Other specialties in Fullerton
- Therapists and counselors in Fullerton861 ranked
- Child and teen therapists in Fullerton156 ranked
- Couples therapists in Fullerton331 ranked
- Family therapists in Fullerton293 ranked
- Neuropsychologists in Fullerton39 ranked
- Psychological testing practices in Fullerton12 ranked
- Anxiety and OCD therapists in Fullerton17 ranked
- Trauma and PTSD therapists in Fullerton88 ranked
- Eating disorder therapists in Fullerton50 ranked
- Psychiatrists in Fullerton838 ranked
- Clinical social workers in Fullerton177 ranked
- Addiction counselors in Fullerton584 ranked
- ABA therapy providers in Fullerton113 ranked
- All psychologists in Fullerton