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Best Psychologists in Slidell, LA (2026)

12 psychologists ranked by RP ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Slidell: Silverthorn Persephanie PHD, RP Score 73/100; 3.0★ from 4 Google reviews.

  2. 5

    Most-reviewed: Access Health Louisiana | St. Tammany Behavioral Health Center, 76 Google reviews at 4.2★, the most of 12 ranked; ranked #5.

Rankings can't be bought. Psychologists can't pay to change their rank or score. How we rank

12 Slidell psychologists are ranked here by RP Score, from eight published factors. The median Google rating is 4.2★ across 12 rated practices.

Top 10 psychologists in Slidell 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.

Top 10 psychologists in Slidell at a glance
RankBusinessRP ScoreGoogle ratingBased inHoursBest for
1Silverthorn Persephanie PHD733.0★ (4)Slidell—Overall
2Lynette Heslet683.4★ (5)Slidell——
3Witt Victoria PHD662.0★ (7)Slidell——
4Michael Sawyer, PhD604.7★ (24)Mandeville, 19 mi away——
5Access Health Louisiana | St. Tammany Behavioral Health Center594.2★ (76)SlidellEveningsMost reviews
6Russell S. Anderson, PhD595.0★ (9)Mandeville, 19 mi away——
7Linda J. Collings, PHD574.2★ (5)Mandeville, 20 mi away——
8Rebecca Graham, Ph.D.535.0★ (7)Mandeville, 20 mi away——
9Swanbon Thomas533.7★ (3)Mandeville, 18 mi away——
10Northlake Medical Psychology And Counseling525.0★ (5)Mandeville, 20 mi away——

The 12 best psychologists in Slidell, 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.

  2. #2 Lynette Heslet

    Based in Slidell

    68/100RP Score

    Ranked #2 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 3.4★ from 5 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 3.4★ from 5 Google reviews
    Hours
    Mon 7 AM–4:30 PM · Tue–Fri 7 AM–4 PM · Sat–Sun closed
    Address
    59118 N Pearl Dr, Slidell, LA 70461
    View profile for Lynette Heslet(985) 445-1444

  3. #3 Witt Victoria PHD

    Based in Slidell

    66/100RP Score

    Ranked #3 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 2.0★ from 7 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 2.0★ from 7 Google reviews
    Hours
    Mon closed · Tue 10:30 AM–4:30 PM · Wed closed · Thu 10:30 AM–4:30 PM · Fri–Sun closed
    Address
    1186 Fremaux Ave, Slidell, LA 70458
    View profile for Witt Victoria PHD(985) 778-2132

  4. #4 Michael Sawyer, PhD

    Based in Mandeville, 19 mi away

    60/100RP Score

    Ranked #4 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 4.7★ from 24 Google reviews.

    Based on 6 of 8 factors; recency and availability not yet collected.

    • 4.7★ from 24 Google reviews
    Address
    2810 E Causeway Approach, Mandeville, LA 70448
    View profile for Michael Sawyer, PhD(985) 898-7420

  6. #6 Russell S. Anderson, PhD

    Based in Mandeville, 19 mi away

    59/100RP Score

    Ranked #6 because of specialty focus and its Google rating: listed on Google as “Psychologist”, 5.0★ from 9 Google reviews.

    Based on 6 of 8 factors; recency and availability not yet collected.

    • 5.0★ from 9 Google reviews
    Address
    2810 E Causeway Approach, Mandeville, LA 70448
    View profile for Russell S. Anderson, PhD(985) 898-7420

  7. #7 Linda J. Collings, PHD

    Based in Mandeville, 20 mi away

    57/100RP Score

    Ranked #7 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.

    • 4.2★ from 5 Google reviews
    Address
    215 St Ann Dr, Mandeville, LA 70471
    View profile for Linda J. Collings, PHD(985) 951-2250

  8. #8 Rebecca Graham, Ph.D.

    Based in Mandeville, 20 mi away

    53/100RP Score

    Ranked #8 because of specialty focus and its Google rating: listed on Google as “Child psychologist”, 5.0★ from 7 Google reviews.

    Based on 7 of 8 factors; recency not yet collected.

    • 5.0★ from 7 Google reviews
    Hours
    Mon 9 AM–4:30 PM · Tue–Wed 9 AM–5:30 PM · Thu–Fri 9 AM–4:30 PM · Sat–Sun closed
    Address
    1350 Park Dr Unit B, Mandeville, LA 70471
    View profile for Rebecca Graham, Ph.D.(985) 778-3654

  9. #9 Swanbon Thomas

    Based in Mandeville, 18 mi away

    53/100RP Score

    Ranked #9 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.

    • 3.7★ from 3 Google reviews
    Hours
    Mon 2 PM–6 PM · Tue–Wed 10 AM–6 PM · Thu 10 AM–5 PM · Fri–Sun closed
    Address
    1799 Montgomery St, Mandeville, LA 70448
    View profile for Swanbon Thomas(985) 674-7758

  11. #11 Dr. Leo Burke

    Based in Mandeville, 20 mi away

    52/100RP Score

    Ranked #11 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.

    • 4.0★ from 4 Google reviews
    Hours
    Mon–Thu 9 AM–5 PM · Fri 9 AM–1 PM · Sat–Sun closed
    Address
    700 Mariners Plaza Dr Ste 704, Mandeville, LA 70448
    View profile for Dr. Leo Burke(504) 232-7338

  12. #12 The Ness Center

    Based in Mandeville, 15 mi away

    46/100RP Score

    Ranked #12 because of its Google rating and specialty focus: 4.3★ from 30 Google reviews, listed on Google as “Mental health service”.

    Based on 7 of 8 factors; recency not yet collected.

    • 4.3★ from 30 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    23699 Quail Ln, Mandeville, LA 70448
    View profile for The Ness Center(985) 334-4040

Also serving Slidell

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.

Unranked psychologists serving Slidell
BusinessGoogle ratingDistance
Abundant Health4.2★ (24)In Slidell
AppleGate Recovery Slidell4.7★ (9)In Slidell
Beacon Behavioral Outpatient - Slidell3.8★ (8)In Slidell
Center for ADHD Inc2.4★ (17)In Slidell
Cindy CD MC Nitt LLC5.0★ (2)In Slidell
Coastline Counseling and Partners, LLC3.9★ (10)In Slidell
Csaki Rachel B MD5.0★ (3)In Slidell
Dawn Of Hope Counseling,llc3.3★ (9)In Slidell
Dr. Balminder S. Mangat, MD3.2★ (25)In Slidell
Emily M. Conner, PA-C5.0★ (2)In Slidell
Family Ties Counseling5.0★ (3)In Slidell
New Orleans and Slidell Counseling | Apex4.3★ (11)In Slidell
Northshore Family Counseling, LLC4.3★ (34)In Slidell
Open Minds Psychiatric Services, LLC5.0★ (3)In Slidell
Path Behavioral Healthcare2.4★ (11)In Slidell
Psych Nouveau Child & Family Psychiatric Care5.0★ (26)In Slidell
Rachel B. Csaki, MD5.0★ (33)In Slidell
Richard Kutner, MD4.4★ (44)In Slidell
Shannon S. Blestel, LCSW, APEX COUNSELING, LLC4.4★ (9)In Slidell
Slidell Behavioral Health Clinic3.5★ (13)In Slidell

How we ranked Slidell psychologists

We scored 12 Slidell 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.

Read the full method: formula, sources and exclusions

RP Score factors and weights
FactorWeightComputed fromIn Slidell data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Review volume5%Number of Google reviews, compared with the most-reviewed practice on the listMeasured
Recency5%Share of Google reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, and round-the-clock or same-day availabilityMeasured
Specialty focus25%How clearly the practice does this specialty (its Google category and name)Measured
Proximity15%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The practice has claimed its Ranked Psychologists profile (free or paid earn the same)Measured
Partnered5%The practice links to Ranked Psychologists from its own website with our badge, checked periodicallyMeasured

How to choose a psychologist

  1. Check the license with the state or provincial board that issued it; most boards publish a free online lookup.
  2. Make sure they regularly work with clients who have your concern, and ask what approach they use and why.
  3. If you may need testing as well as therapy (for example for ADHD or memory concerns), ask whether the practice does assessments itself.
  4. 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.
  5. Check practical fit: in-person or online sessions, evening times, and how soon they have an opening.
  6. 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 Slidell: frequently asked questions

Who is the best psychologist in Slidell?

By RP Score, the highest-ranked psychologist in Slidell, LA is Silverthorn Persephanie PHD with an RP Score of 73/100. It has 3.0★ from 4 Google reviews. Lynette Heslet (#2) and Witt Victoria PHD (#3) follow. We ranked 12 psychologists on eight factors, last updated November 9, 2026.

How many psychologists are there in Slidell?

RankedPsychologists ranks 12 psychologists serving Slidell, LA. 4 of them are based in Slidell; 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.

What Google rating do Slidell psychologists have?

The median Google rating among 12 rated psychologists in Slidell is 4.2★, with a median of 6 reviews. Access Health Louisiana | St. Tammany Behavioral Health Center has the most, 76 reviews, and ranks #5. 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 Slidell count in this ranking?

Yes, if they are within 20 mi of the Slidell 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 Slidell 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 Slidell

  1. November 2026: RP Scores recalculated for 12 psychologists serving Slidell.

More psychologists and Slidell pages