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Thomas PrestonPsychiatrist in Lake Grove, NY

Thomas Preston is a psychiatrist at 4 Smith Haven Mall Ste 107, Lake Grove, NY 11755, ranked #19 of 480 psychiatrists in Lake Grove and rated 3.7 from 6 Google reviews. Open Monday to Friday.

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

Lake Grove, NYUpdated 0 paid placements in any rankingHow we rank

Call (631) 444-8053Website ↗

Key facts

Key facts about Thomas Preston
Address4 Smith Haven Mall Ste 107, Lake Grove, NY 11755Get directions
Phone(631) 444-8053
Websitedoctors.stonybrookmedicine.edu
HoursMonday: 9 AM – 5 PM; Tuesday: 1 AM – 8 PM; Wednesday to Friday: 9 AM – 5 PM
Google rating3.7 from 6 Google reviews

Specialties

Each specialty shows the evidence we matched it on.

Service area

Serves Lake Grove and 11 towns within 40 miles: Nesconset, Centereach, Saint James, Lake Ronkonkoma, Ronkonkoma, Smithtown, Stony Brook, Holbrook, Terryville, Hauppauge and Setauket-East Setauket.

Based in Lake Grove, NYView on map

Opening hours

Opening hours for Thomas Preston
DayHours
Monday9 AM – 5 PM
Tuesday1 AM – 8 PMevening
Wednesday9 AM – 5 PM
Thursday9 AM – 5 PM
Friday9 AM – 5 PM
SaturdayClosed
SundayClosed
  • Open evenings (after 6 PM)
  • Open Saturdays — no
  • Open Sundays — no

Questions about Thomas Preston

How is Thomas Preston ranked in Lake Grove?

Thomas Preston is ranked #19 of 480 psychiatrists in Lake Grove by RP Score, with 69 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 are Thomas Preston’s hours?

Thomas Preston is open Monday to Friday. Its listed hours are Monday, 9 AM – 5 PM; Tuesday, 1 AM – 8 PM; Wednesday to Friday, 9 AM – 5 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Thomas Preston serve?

Serves Lake Grove and 11 towns within 40 miles: Nesconset, Centereach, Saint James, Lake Ronkonkoma, Ronkonkoma, Smithtown, Stony Brook, Holbrook, Terryville, Hauppauge and Setauket-East Setauket. The list is based on the business's location and the usual service radius for psychiatry. Confirm your address is covered when you call.

What do Google reviews say about Thomas Preston?

Thomas Preston has a rating of 3.7 from 6 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 Thomas Preston?

Call Thomas Preston on (631) 444-8053. The business is at 4 Smith Haven Mall Ste 107, Lake Grove, NY 11755. Its website is linked in the key facts on this page. Ask about fees, insurance and openings before you book a first session.

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Compare nearby psychiatrists

Thomas Preston compared with nearby businesses
BusinessRankRP ScoreGoogle ratingSaturdaySundayDistance away
Thomas Preston (this business)—693.7 (6)NoNo
East End Neuropsych#17694.5 (44)NoNo1.5 mi
Dr. Muthukrishna Sabanayagam, MD#18695.0 (3)——11.1 mi
Evolve Psychiatry#20684.6 (982)YesNo20.8 mi

See all 480 ranked psychiatrists in Lake Grove