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Dr. Nick Mastromihalis, DDS

Dr. Nick Mastromihalis, DDS

Endodontics
25+ years of experience

Dr. Nick Mastromihalis, DDS is an endodontics practitioner in Mount Kisco, NY and has over 25 years of experience in the medical field. He graduated from SUNY Stony Brook in 1996. He is affiliated with Newyork-Presbyterian/Columbia University Medical Center. He is accepting new patients.

4.4 Star Rating
Based on 45 reviews 4.4 Star Rating (45 reviews)

Practice

101 S Bedford Rd Ste 410 Mount Kisco, NY 10549

Make an Appointment

(914) 241-1177

At a Glance

  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Practices at Top Hospital
    America's 250 Best Hospitals Award™ • See hospitals
  • Recent Reviews
    Reviews made in the last 30 days. • See reviews
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Dr. Mastromihalis' Reviews

Likelihood to recommend Dr. Mastromihalis

4.4

45 ratings, 38 with a written review
5 Star
84%
84%
4 Star
2%
2%
3 Star
0%
0%
2 Star
0%
0%
1 Star
13%
13%

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RecentHighestLowestMost Helpful
What went well
  • I felt respected
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Apr 25, 2025
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What went well
  • Appointment scheduling
  • Explained conditions well
  • Staff friendliness
  • Trusted the provider's decisions
What could be improved
No results
Helpful
vic – Dec 21, 2024
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What went well
No results
What could be improved
No results
2 people found this helpful
Helpful
Nov 21, 2023
×Post a ResponseAre you Dr. Nick Mastromihalis, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Jess – Jan 03, 2022
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What went well
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Aug 12, 2021
×Post a ResponseAre you Dr. Nick Mastromihalis, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 people found this helpful
Helpful
V Fusco – Mar 03, 2021
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What went well
No results
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Staff wasn't friendly
  • Appointment was rushed
  • Long wait times
7 people found this helpful
Helpful
Christopher Duncan Marr – Feb 25, 2021
×Post a ResponseAre you Dr. Nick Mastromihalis, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Nov 07, 2020
×Post a ResponseAre you Dr. Nick Mastromihalis, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
2 people found this helpful
Helpful
Apr 02, 2020
×Post a ResponseAre you Dr. Nick Mastromihalis, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
2 people found this helpful
Helpful
Nov 15, 2019
×Post a ResponseAre you Dr. Nick Mastromihalis, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 people found this helpful
Helpful
Oct 16, 2018
×Post a ResponseAre you Dr. Nick Mastromihalis, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
JX in ARMONK – May 01, 2018
×Post a ResponseAre you Dr. Nick Mastromihalis, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Linda in Bedfdord,NY – Apr 12, 2018
×Post a ResponseAre you Dr. Nick Mastromihalis, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
STAMFORD – Jan 30, 2018
×Post a ResponseAre you Dr. Nick Mastromihalis, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Private in Shrub Oak – Jan 10, 2018
×Post a ResponseAre you Dr. Nick Mastromihalis, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Steve in Bedfdord,NY – Jan 07, 2018
×Post a ResponseAre you Dr. Nick Mastromihalis, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
kleosmth in Bedfdord,NY – Jan 02, 2018
×Post a ResponseAre you Dr. Nick Mastromihalis, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Sue in Somers, NY – Jan 01, 2018
×Post a ResponseAre you Dr. Nick Mastromihalis, DDS?
What went well
No results
What could be improved
No results
9 people found this helpful
Helpful
White Plains, NY – Dec 19, 2017
×Post a ResponseAre you Dr. Nick Mastromihalis, DDS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
jenn in Bedfdord,NY – Dec 08, 2017
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Leave a review

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Know Before You Go

About Me

biography

Dr Mastro graduated from SUNY at Stony Brook Dental School.

He completed his Endodontic specialty  in 1999 from the Department of Endodontics at Stony Brook.

He practices with Westchester Putnam Endodontics with location in New Rochelle NY, Mt Kisco NY, Carmel NY, and Greenwich CT.

  • Endodontics

  • Dentistry

  • Suny Stony Brook Medical Center

    Fellowship Hospital, 1999

  • Suny State University Hospital

    Internship Hospital, 1997

  • Suny Stony Brook

    Medical School, 1996

  • Adelphi

    Undergraduate School, 1992

  • English

  • Greek

  • Spanish

Healthgrades Tips for Getting the Best Dental Care

Locations

Practice

Westchester Putnam Endodontic Associates101 S Bedford Rd Ste 410 Mount Kisco, NY 10549
1

Affiliated Hospitals

  • Newyork-Presbyterian/Columbia University Medical Center

    622 W 168th St
    New York, NY 10032
    Recipient of 16
    hospital awards

    America's 250 Best Hospitals Award™ (2025)

    Top 5% in the nation for consistently delivering clinical quality

    View all awards
Learn more about how Healthgrades measures Hospital Quality