Meet Our Staff

Mariann Zenitz_resized_Web
Mariann Zenitz, Executive Director

As Executive Director, Mariann leads a strong management team at Susan Bailis. She has worked with the senior population most of her career. Born in Massachusetts, she studied psychology and marketing and has worked in assisted living since 2004.

Mariann has a strong background in business operations, marketing, and sales. Among her accomplishments she has won numerous awards for excellence in service and hospitality.

Mariann lives north of Boston.

Marcos Stadler, Assistant Executive Director

As Assistant Executive Director, Marcos supports the Executive Director with the daily operations of Susan Bailis.  Marcos has a Liberal Arts degree in Healthcare Administration and a background in healthcare operations with the knowledge of local, state, and federal regulations.

Marcos has been working in assisted living and skilled nursing since 1992, helping to make a difference in the lives of senior citizens, their families, and friends. His priority is to ensure all residents are happy and proud of living in our community.

Diane DeRubeis_resizedWeb
Diane DeRubeis, RN, BSN, MBA, S-RCD, Resident Care Director

Diane was born and raised in Pennsylvania. She attended Northeastern University, where she earned her Bachelor of Science degree in Nursing. She later earned her Master’s in Business Administration from UMass Boston.

For many years, Diane worked as a nurse and supervisor at the Boston VNA and as Community Relations and Development Director at the Medford VNA.

In 2007, she began her career in assisted living as a Resident Care Director. Over the past five years, Diane has served with distinction in that same leadership capacity here at Susan Bailis. As testament to her professionalism and skills set, Diane also serves as Senior Resident Care Director for all HallKeen Assisted Living’s properties in the eastern Massachusetts region.

Fiona Hanrahan, Activity Director

According to the dictionary, the word “activity” can be defined as: the quality or state of being active or vigorous or energetic action. Not only does Fiona endeavor to keep residents engaged, but she strives to create meaningful programs to illuminate their days. As our Activities Director, Fiona’s main focus is to keep our residents engaged, excited, and involved. She strives to create new meaningful programs that are intellectual, inviting and inclusive.

Fiona’s monthly activity calendar encompasses spiritual, physical, crafts through creativity, cultural, social, and musical events and activities. At Susan Bailis, activities are so much more than mere board games or arts and crafts. They are unique moments throughout the day that evoke giggles, smiles and emotion to create new memories. Susan Bailis is not simply a name on a building. It is a cozy community of caring hearts and souls where friendships are built and the patterns of everyday life glisten.

Fiona holds a Bachelor of Arts degree in Studio Art and a minor in Theatre from Hunter College. Fiona loves to illustrate and write whimsical fairy tales, paint, take photographs, bake and dream about lighthouses and mermaids. Fiona is a native of New York. She moved to Boston after graduating. Boston and Susan Bailis Assisted Living are now home to Fiona.

Doug Warren Updated Dec2018_Crop
Doug Warren, Community Relations Director

Serving the assisted living industry since 2003, Doug brings a lifetime passion for hospitality, customer service and helping others to the Susan Bailis mission.  He joined our team in September of 2015 with a wealth of experience gained with established assisted living communities on the north shore, as well as with the successful openings of several new assisted living communities in the metropolitan Boston area.

Doug found his professional calling while helping his family research and select the perfect assisted living community for his grandmother. He holds an MBA degree and, prior to transitioning into the assisted living field, spent more than 15 years in marketing and advertising. He also comes with a strong background in consumer behavior and psychology.

Born in Massachusetts, he spent many years in California and currently resides north of Boston.  He enjoys sports and as testimony to his love for traveling, he has visited 49 of our 50 states. Alaska is last on his list.

Mladen Vinovrski, Maintenance Director

We sometimes take for granted the way things always seem so comfortable and humming along so nicely at Susan Bailis. That’s due in great part to the terrific work of our maintenance department headed by Mladen.

As Maintenance Director, Mladen’s daily concentration is to keep our property safe and functional so that the residents, families and staff will enjoy every carefree moment of living at Susan Bailis.

Mladen is a jack-of-all-trades with a happy disposition. He brings over 10 years of experience to his position working at a variety of properties in and around Boston. He is always on the go, preferring to be preventive in his approach to pre-empt problems or minimize any operational or security issues that may arise.

Mladen was born in Bosnia and Herzegovina and has lived in Massachusetts since 1998. He currently resides north of Boston with his family. In his spare time enjoys outdoor activities with his family and friends.