New York City

Flatiron District

In the heart of NYC’s tech scene, our Flatiron practice is near the cross street of Broadway and East 20th Street. We welcome you to a sanctuary that encourages you to be seen and heard.

Octave is in-network with the United Healthcare UMR plan for Mount Sinai employees, and we provide assistance for utilizing out-of-network benefits with other insurance providers. Learn more about pricing, working with your insurance, and how to get reimbursed here.

Meet Our Providers

Sean Bell-Thomson, PhD

Clinic Director, Flatiron District


Erin Andrews, LMHC

Flatiron District, NYC


Howard Brenner, LCSW

Flatiron District, NYC


Ria Brown, LCSW

Flatiron District, NYC


Katie DiMuzio, LCSW

Flatiron District, NYC


Alissa Koloff, PsyD

Flatiron District, NYC


Jett Stone, PhD

Flatiron District, NYC


Where To Find Us

Our quiet haven amongst the noise.


45 E 20th Street, 6th Floor,
New York, NY 10003

Public Transportation

N, Q, R, W, B, L, F, M, 6

Get Directions


Mon - Thurs: 8am - 8pm
Friday: 8am - 6pm

Phone: 917-473-8869 Fax: 929-529-6277

Contact Us

How It Works


Schedule a free, 15 minute phone consultation with an Octave Care Navigator. Share more information about your situation, needs, and values using our pre-consultation questionnaire.


During the consultation, we’ll use information you’ve already provided and ask additional questions about what’s bringing you to Octave.


Together you and the Octave Care Navigator will determine the service and provider that best fits your needs and schedule.

Consultations are available via phone call and free of charge.