Dr. Seth Kleinrock, DDS

Dr. Seth Kleinrock, DDS

Orthodontics & Dentofacial OrthopedicsMale

Accepting new patients

Make an Appointment

(516) 218-4020

Dr. Seth Kleinrock, DDS is a Orthodontics & Dentofacial Orthopedics Practitioner in Hewlett, NY and has over 36 years of experience in the medical field. He graduated from University Of Maryland Dental School medical school in 1985. He is accepting new patients. Be sure to call ahead with Dr. Kleinrock to book an appointment.


Kleinrock Orthodontics

Visit Website
Hewlett Office1705 Broadway Hewlett, NY 11557
  • Call
  • Fax
  • Hours
    • Mon: 8:00am - 7:00pm
    • Tue: 10:00am - 5:30pm
    • Wed: 8:00am - 7:00pm
    • Thu: 8:00am - 7:30pm
    • Fri: 8:00am - 4:00pm
    • Sat: 8:00am - 1:00pm
    • Sun: closed
  • Directions
Long Beach20 W Park Ave Ste 302 Long Beach, NY 11561
  • Call
  • Fax
  • Hours
    • Mon: 8:00am - 7:00pm
    • Tue: 10:00am - 5:30pm
    • Wed: 8:00am - 7:00pm
    • Thu: 8:00am - 7:30pm
    • Fri: 8:00am - 4:00pm
    • Sat: 8:00am - 1:00pm
    • Sun: closed
  • Directions

At a Glance

  • Explains Conditions Well Patients said this doctor explains conditions well. See reviews
  • Low Wait Times Patients are usually seen in 10 minutes or less.
  • Trustworthy Patients said this doctor is trustworthy. See reviews

Dr. Kleinrock's Reviews

Likelihood to recommend Dr. Kleinrock


Based on 269 ratings

5 Stars
4 Stars
3 Stars
2 Stars
1 Star
healthgrades logo

Leave a review

How likely are you to recommend
Dr. Kleinrock?
(Select your rating)
What went well
  • Trusted the provider's decisions (265)
  • Office environment (263)
  • Appointment wasn't rushed (261)
What could be improved
  • Staff wasn't friendly (5)
  • Long wait times (4)
  • Appointment was rushed (3)
RecentHighestLowestMost Helpful
Reply Flag
I WILL NEVER REFER ANYONE TO THIS OFFICE Dealing with the billing people is horrible. They are rude and unhelpful.
What went well
  • Appointment scheduling
  • Appointment wasn't rushed
  • Listened & answered questions
  • Trusted the provider's decisions
What could be improved
  • Office environment
  • Staff wasn't friendly
×Post a ResponseAre you Dr. Seth Kleinrock, DDS?
Reply Flag
Dr. Kleinrock does not explain procedures in clear manner.He is often rush. His often staff is very rude, especially the receptionist. He offers chances to win prizes(ipads) if you post positive reviews. I think that is why there may be disproportionate amount of 5 stars.
What went well
No results
What could be improved
  • Difficult to schedule appointment
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't listen or answer questions
  • Didn't explain conditions well
5 people found this helpful
Aug 21, 2018
×Post a ResponseAre you Dr. Seth Kleinrock, DDS?
Reply Flag
I am wearing Invisalign braces on my upper teeth since August and I am thrilled with the care that Dr. Kleinrock has given me. Dr. Kleinrock answered any questions that I had with patience and expertise and everything is going even more smoothly than I expected. His office staff is extremely courteous and his office is just beautiful. I am thrilled with the results so far and I highly recommend Dr. Kleinrock and his staff.
What went well
No results
What could be improved
No results
Judy Slutzkin in Woodmere, New York – Mar 03, 2017
×Post a ResponseAre you Dr. Seth Kleinrock, DDS?

Leave a review

How was your experience with Dr. Kleinrock?

Experience and Background Checks


Background Check

No malpractice claims found for New York
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check if Dr. Kleinrock treats your condition or procedure

Dr. Kleinrock's conditions and procedures:

  • Bite Adjustment
  • Cosmetic Oral Evaluation
  • Cosmetic Procedure
  • Crooked Teeth
  • Crossbite
  • Dental Brace
  • Dental Crowding
  • Dental Disorders
  • Dental Spacing
  • Fixed Orthodontic Correction
  • Gaps Between Teeth
  • Grinding of Teeth
  • Invisalign®
  • Malocclusion (Bad Bite)
  • Metal Dental Braces
  • Misaligned Teeth
  • Non-Surgical Bite Correction
  • Non-Surgical Orthodontic Procedures
  • Open Bite
  • Orthodontic Aligners
  • Orthodontic Disorders
  • Orthodontic Procedures
  • Orthodontic Treatment, Adult
  • Orthodontic Treatment, Early
  • Overbite
  • Overjet
  • Protruding Front Teeth
  • Removable Appliances
  • Retainer Therapy
  • Retainers
  • Spacers for Braces
  • Springs for Braces
  • Thumb Sucking
  • Underbite

Insurance Check

Search for your insurance provider

Dr. Kleinrock accepts

Accepted insurance can change. Please double-check when making an appointment.

(516) 218-4020

Dr. Kleinrock accepts the following insurance:

Dental DPPO
Ameritas PPO
Assurant Health
DHA Premier
Delta Dental
Delta Dental PPO
Delta Dental Premier
Delta Dental of Washington
Delta Dental Premier
Dental Network of America
Dental Network of America DPPO
Dental Preferred Plus
DentalGuard Preferred
MetLife PDP
Principal Financial Group
Dental PPO
United Concordia
Advantage Plus PPO
National Fee-for-Service

About Me

Care Philosophy

At Kleinrock Orthodontics our goal is to provide outstanding orthodontic care in a warm and caring environment.


Dr. Kleinrock has been practicing orthodontics in the Five Towns area and Long Beach for more than 21 years. After graduating Summa Cum Laude from the...Read more

Practice Areas

  • Orthodontics & Dentofacial Orthopedics
  • Dentistry


Rutgers University
Residency Hospital
New York Hospital
Internship Hospital
University Of Maryland Dental School
Medical School


  • English
  • Spanish

Frequently Asked Questions

How can I make an appointment with Dr. Seth Kleinrock, DDS?

Call (516) 218-4020 to make an appointment. Click here for more information.

Is Dr. Seth Kleinrock, DDS accepting new patients?

Dr. Seth Kleinrock, DDS generally accepts new patients on Healthgrades. You can see Dr. Kleinrock's profile to make an appointment.

Does Dr. Seth Kleinrock, DDS accept my insurance?

Use the Healthgrades insurance check to verify if Dr. Kleinrock accepts your insurance.

What are Dr. Seth Kleinrock, DDS's top areas of care?

Dr. Kleinrock frequently treats Bite Adjustment, Cosmetic Oral Evaluation , and Cosmetic Procedure. See all procedures and conditions Dr. Kleinrock treats.

Where is Dr. Seth Kleinrock, DDS's office located?

Dr. Kleinrock's office is located at 1705 Broadway, Hewlett, NY 11557. Find other locations and directions on Healthgrades.

What languages does Dr. Seth Kleinrock, DDS speak?

Dr. Kleinrock speaks Spanish and English. View profile to see all.

Does Dr. Seth Kleinrock, DDS offer telehealth services?

Dr. Kleinrock has not yet indicated whether they offer telehealth services. Please contact the office to check for availability/eligibility.