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Dr. Katherine Siamas, MD

Dr. Katherine Siamas, MD

Dermatology*

Dr. Katherine Siamas, MD is a dermatologist in Commack, NY. She is affiliated with medical facilities Stony Brook University Hospital and Mather Hospital. She is accepting new patients and telehealth appointments.

4.8 Star Rating
Based on 16 reviews 4.8 Star Rating (16 reviews)

Stony Brook Dermatology

500 Commack Rd Ste 102B Commack, NY 11725
Telehealth available
(631) 444-4200

At a Glance

  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital
    America's 250 Best Hospitals Award™ • See hospitals
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Dr. Siamas' Reviews

Likelihood to recommend Dr. Siamas

4.8

16 ratings, 4 with a written review
5 Star
94%
94%
4 Star
0%
0%
3 Star
0%
0%
2 Star
0%
0%
1 Star
6%
6%

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RecentHighestLowestMost Helpful
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
Oct 09, 2021
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What went well
No results
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
Helpful
Oct 04, 2021
×Post a ResponseAre you Dr. Katherine Siamas, MD?
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
6 people found this helpful
Helpful
Mahmud – Aug 23, 2019
×Post a ResponseAre you Dr. Katherine Siamas, MD?
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
Andrew Laviano in Charlestown, RI – Jul 08, 2016
×Post a ResponseAre you Dr. Katherine Siamas, MD?

Leave a review

How was your experience with Dr. Siamas?

Know Before You Go

About Me

biography

Dr. Katherine Siamas, MD is a dermatologist in Commack, NY. She is affiliated with medical facilities Stony Brook University Hospital and Mather Hospital. She is accepting new patients and telehealth appointments.

  • Dermatology

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

Learn more about medical license public record check

  • American Society for Dermatologic Surgery, Member

  • American Academy of Dermatology, Member

  • American Medical Association, Member

  • Women Dermatologic Society, Member

Focus on Eczema

Locations

Stony Brook Dermatology

Commack Dermatology500 Commack Rd Ste 102B Commack, NY 11725
1

Affiliated Hospitals

  • Mather Hospital

    75 N Country Rd
    Port Jefferson, NY 11777
    Recipient of 22
    hospital awards

    America's 250 Best Hospitals Award™ (2025, 2024, 2023)

    Top in the nation for overall patient experience based on nine measures related to doctor and nurse communication, hospital cleanliness and noise levels, and medication and post-discharge care instructions

    Outstanding Patient Experience Award™ (2024, 2023, 2022)

    Top in the nation for overall patient experience based on nine measures related to doctor and nurse communication, hospital cleanliness and noise levels, and medication and post-discharge care instructions

    View all awards

    How patients felt about the care they received at this hospital.

    90%
    Patients said they were given information about recovering at home

    6% higher than the national average

    85%
    Patients said that nurses always listened to them and explained things well

    10% higher than the national average

    View all patient feedback

  • Stony Brook University Hospital

    101 Nicolls Rd
    Stony Brook, NY 11794
    Recipient of 33
    hospital awards

    America's 100 Best Hospitals Award™ (2025, 2024, 2023)

    Top 5% in the nation for consistently delivering clinical quality

    America's 250 Best Hospitals Award™ (2025, 2024, 2023)

    Top 5% in the nation for consistently delivering clinical quality

    View all awards

    How patients felt about the care they received at this hospital.

    86%
    Patients said they were given information about recovering at home

    2% higher than the national average

    74%
    Patients said that doctors always listened to them and explained things well

    2% lower than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality