Mary Erwin Nutritionist
Ashley Homrich RD
Amanda Lavasseur RD (Head RD)
Greg Mayette RD
Nicole Meyer RD
Maggie Wakim Nutritionist
Lisha Andrew Nutritionist (per deim)


Kim Eaton PhD Exercise Physiologist (Head EP)
Jane Baruch Exercise Physiologist
Josh McGuire Exercise Physiologist
Kristen Montuori Exercise Physiologist
Lisa Roveda Exercise Physiologist


Judy Brown LCSW
Laurie Dansereau LMFT
Alicia Frick LCSW
Roberta Guez LICSW
Nicole Kanelos MHC
Meredith Owen LCSW
Susan Scotton LCSW
Robin Whelan LCSW

Practice Manager

Nancy Murphy Practice Manager


Astrid Fana Coder / Documentation Reviews
Meredith Santiago Admin. Scheduler
Kristen Jones CMAA Referrals & Verifications


Danielle Morley Clinical Supervisor
Wendy Colby Clinical Supervisor
Meg Wirkerman MA Supervisor


Al Mccooey Business Director
Robert Nierman MD Medical Director
Debbie Petrone Clinical Director

Shift Managers

Michelle Lund Shift Manager / Safety Captain
Kelly Greenslade Shift Manager


Katie Brown NP
Betty Cheng NP (Clinical Educator)
Sandy Chikel NP
Jennifer Guerra NP
Yukiko Ito PA
Andrew Kahn PA
Amanda Kut NP
Sharon Levine NP
Erin MacNeil NP
Kristina McCarthy PA
Arlene Schiro NP

Medical Assistants

Melissa Bradley CMA
Melissa Flavin CMA
Lindsey Jacobs CMA
Sueli Lopes CMA
Matt Thellen CMA

Front Desk

Kristen Jones CMAA (Lead)
Cassie Farrington
Tina Lalond
Vanessa Lupo
Dorothy Moriarty

RMR Technician

Meghan Petrone

Supervising Physician

Harold Picken MD

A little bit about our doctors:


Dr Harold A. Picken M.D,, M.P.H.

Dr. Harold Picken is an experienced physician and medical director who joined NH in 2014. In addition to seeing patients, Dr. Picken’s role is to guide our ongoing work to ensure that we provide high quality, safe, and effective care to our patients, while achieving high patient and referring physician satisfaction.

Dr. Picken is a board certified Internal Medicine physician with additional training in Pulmonary Medicine and Master’s Degree in Public Health focused on Health Policy and Management. His medical degree is from the Case Western Reserve School of Medicine, and his Master in Public Health from the Harvard School of Public Health.

Prior to joining New Horizon, Dr. Picken practiced in the Center for Chest Disease at the Brigham and Women’s Hospital.

Robert S. NiermanRobert S. Nierman, M.D., F.A.C.S., C.M.C.E.

Besides being one of the Medical Directors at New Horizon Medical Dr Nierman also serves as the Medical Director for Clinical Coverage at Tufts Health Plan. His other interests in healthcare are in the areas of Behavioral Health, Lifestyle Change, Mind-Body Medicine and Obesity.

Dr. Nierman is also a Board Certified General Surgeon. He practiced General Surgery for eighteen years in Malden, where he served as Director of Surgical Education and Chief of Surgical Services at Malden Hospital. He is a Professor Emeritus in Surgery at Boston University School of Medicine. Dr. Nierman resides in Lexington, Massachusetts with his wife Merle and has two married children with two grandchildren.