About Us

Cambridge Biotherapies™, founded in 2016 by Daniel A. Brenner, M.D., was born out of a desire to help people who have tried traditional psychiatric treatments, such as medication and psychotherapy, with limited success.

We are a private treatment center committed to providing a uniquely warm, compassionate, welcoming, and comfortable environment. We are careful and thorough, and honor the dignity of every human being we work with, regardless of their background, circumstances, or identity. We maintain exemplary medical standards and incorporate developments from the most current research in a never-ending quest to improve our outcomes. All of our clinicians are highly skilled, carefully selected, have specialized training, and bring years of dedicated experience to their practice.


Our Staff

Patient Call Center Representatives

Eymer Jose Peralta Guitierrez

New Patient Call Center Representative

Patient Care Coordinators

Catherine Laplant

Patient Care Coordinator

Chara Cummings

Patient Care Coordinator

Patient Helpers

Kai Muller

Patient Helper

Adriana Moreno

Patient Helper

Divanni Nova

Patient Helper


Daniel A. Brenner, M.D.

Medical Director, CEO

Mona Itani, M.D.


Olga Pavleyeva, P.M.H.N.P

Nurse Practitioner and Infusion Nurse

Odessa Holt, MSW

Ketamine-assisted Psychotherapist

Holly Randall, PCNS, DNP

Psychiatric Clinical Nurse Specialist


Edward Joseph Almeida, RN, VA-BC

Nurse Manager, Infusion Nurse

Kelsey Paydos, RN, BSN, CPN

Asst. Nurse Manager, Infusion Nurse

Doreen Rynne, R.N.

Infusion Nurse

Erin Reilly, RN, VA-BC

Infusion Nurse

Katherine Marcinkus, R.N.

Infusion Nurse

Kaitlin O’Donnell, R.N.

Infusion Nurse

Sarah Slote

Infusion Nurse

Sarah Glick

Infusion Nurse

Melissa Martin

Infusion Nurse

Olivia Hendy, RN, BSN, CPN

Infusion Nurse

Jake Keenan RN, BSN

Infusion Nurse

TMS Technicians

Daniel T. Thompson

TMS Manager

Dana Colley

TMS Technician


Daniel A. Brenner, M.D.

Medical Director, CEO

Brendan O’Connor


Chrystin Comeau

Director of Operations

Anny Giraldo

Operation Support