- Senior Management Staff
- General Staff

Sidney Greenberger
Chairman & CEO
Sidney Greenberger began his illustrious career in healthcare as a dietary worker and as a quality assurance aide. After working and excelling in these roles, Sidney was recognized for his hard work and achievements and was trained and promoted to a business-office position in charge of Medicaid eligibility and collections. After becoming an assistant administrator, and then, in 1993, a practicing administrator, Sidney became well-known for his positive work ethic, his in-depth knowledge and understanding of the always-evolving healthcare market, and his unyielding commitment as a leader entrusted with ensuring the health and well-being of his clients as well as the morale and satisfaction of his employees. As a consultant to healthcare centers in New York, New Jersey, Pennsylvania, and Florida, his expertise is in high demand. His forward-thinking, pleasant personality and deep understanding of the healthcare industry has contributed to the success of the facilities he owns and manages.

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Heshy Klein
President
Heshy Klein offers an outstanding contribution to AristaCare's executive management team. His extensive and notable experience in the long-term care/sub-acute field make him an authority in all financial and business operations. Heshy's strong analytical, interpersonal and presentation skills have fostered his successful track record of improving profitability through cost reduction, increased efficiency and revenue enhancement. His broad, yet in-depth knowledge of the various governmental Medicare and Medicaid reimbursement systems, make him an expert when dealing with the ever-changing reimbursement environment. Heshy's unique problem-solving and organizational skills contribute to his success at mastering and streamlining efficient business operations as a whole.

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Peter F. Kisylia, CPA, MBA
Executive Vice President/CFO
As a CPA and MBA, Pete joins AristaCare with more than 20 years of executive finance experience in the healthcare field. Most recently, Pete held the position of CFO at Saint Clares Health System. Headquartered in Denville, NJ, Saint Clares' System included four acute care hospitals, one skilled nursing facility, and one outpatient imaging center. Its services included ICU, CCU, cardiology, oncology, behavioral health, pediatrics, tobacco treatment programs, sleep disorder programs--among many other services and programs. In addition to overseeing AristaCare's fiscal operations, Pete, as CFO, will be charged with seeking out and evaluating new programs, services and business opportunities at both the individual facility level as well as companywide.

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Renee' Pruzansky
Chief Operating Officer
Renee' boasts an illustrious healthcare background encompassing operations, marketing, sales, program development, and public relations for the past 15-plus years. Renee's ability to network with key industry leaders, decision makers, and physicians has her well positioned in the healthcare market. Her unique approach in creating and developing niche markets, innovative programs, and solid operations systems is what distinguishes AristaCare's centers from their competitors. Among the many successful programs Renee' developed are the CARF accredited Stroke Recovery Program, Cardiac Boot Camp™, A Subacute Cardiac Conditioning and Education Program, the Spinal Cord Injury Program, the Healthy Healing Intensive Wound Care Program™, the Peritoneal Dialysis Program, Nostalgia Park™, our Alzheimer's/Dementia Program, the Active Lifestyles Life Enhancement Program, the Indian and Hispanic cultural programs, to name a few. Her track record in public relations and high impact marketing events brings the success and results demanded in this fast paced industry. Renee's in-depth understanding of information technology, combined with her aptitude for methodical statistical analysis, has been the driving force behind the development and implementation of AristaCare's proprietary database software, which has been key to the tremendous census-building success for which she is famous. Her refreshing approach and philosophy has captured much attention and acclaim, establishing Renee as a highly sought-after speaker (some speaking engagements include NIC, LTC Discussion Group, Capitol Hill, Washington, DC, and AHCA). Her uncompromising drive to constantly raise the bar is what keeps AristaCare beyond the highest standards in the industry. Renee’ and her team work endlessly to ensure that AristaCare’s excellent reputation remains unparalleled.

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Tina LaPelosa
BSN, RNC, CDONA/LTC, CDP, LNHA
Tina LaPelosa serves a dual role at AristaCare—she is Corporate Administrator to all of our facilities and serves as Clinical Administrator to AristaCare at Cedar Oaks. Her collection of credentials is a true testament to her extensive experience and the incredible clinical knowledge she brings to the company, as well as her genuine love of nursing. She is a forward-thinker, problem solver, and enthusiast which truly make her an integral part of our management team.

Tina entered the nursing field in 1983 as an LPN in Raritan Bay Medical Center, while also working with the elderly part time at the Central NJ Jewish Home for the Aged. It was her love of the geriatric population that made her change to a full time position in the long term care industry which she has no0w been a part of for almost 30 years. She went back to school for her RN, then began working at Cedar Oaks in 1994 as a charge nurse turned ADON, then onto Clinical Administrator. Tina then became certified as a dementia practitioner, after which she obtained her BSN and Administrator’s license. Over the past 18 years, she has accumulated extensive experience in wound care systems and has become a vital leader at AristaCare at Cedar Oaks, continually striving for excellence in the nursing field, while demonstrating her passion into all aspects of the high acuity level clinical programs she oversees, including CARF-accredited sub acute rehab, CARF-accredited stroke recovery rehab, and long term care programs, all of which Cedar Oaks is famous for. Tina spearheaded the arduous process of obtaining CARF Accreditation, a coveted special recognition of excellence in rehab.

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Joseph Vescio, MBA
Assistant Vice President - Finance
Joe Vescio has made a name for himself in the field of healthcare finance, most significantly in the areas of budgeting and reimbursement. After serving his country for ten years as an aircraft controller in the United States Air Force, Joe received his accounting degree and held executive finance roles at several major healthcare institutions and corporations over the past eighteen years, including Deborah Heart and Lung Center, CentraState Medical Center, Meridian Health Systems, and Saint Clares Health System. As Assistant Vice President of Finance, Joe will oversee all accounting, budgeting, reimbursement and financial reporting functions under the direction of the CFO.

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Peretz Stern
Chief Technology Officer
As Chief Technology Officer for AristaCare, Peretz and his team are charged with the responsibility of ensuring uninterrupted data flow between AristaCare and its affiliated facilities and for maintaining a central data repository that feeds off an infrastructure spread across multiple facilities and multiple states. As the former systems administrator for a publicly traded health and beauty aide company, and with more then 10 years experience in Information Technology, Peretz personifies cutting-edge IT infrastructure and design. His professional strong points include the seamless integration of internet and intranet, as well as his ability to balance the need to ensure a constant flow of necessary data, while at the same time limiting the same flow based on sound security policies and in compliance with applicable regulatory statutes, such as HIPAA.

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Mona Lynch
Executive Director of Human Resources and Risk Management
Mona Lynch holds a certification from Rutgers University in human resource management. She has had extensive experience in all facets of human resource management including staff recruitment, labor relations and staff retention. From a regulatory standpoint, Mona is responsible for keeping abreast and overseeing compliance with the multitude of HR-related regulations including FMLA, ADA, OSHA, and HIPAA as well as applicable EEOC and NLRB guidelines. She also is an expert in workers compensation claims handling and processing as well as benefits administration, including pension, 401(k), and health insurance.

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Bonnie Saunders, PT, MPA, CDP
Director of Rehabilitation and Program Development
As a physical therapist by profession, Bonnie Saunders' career spans back over twenty years when she began as a staff therapist at Logan General Hospital in West Virginia. Bonnie earned her Masters in Public Administration with applied in Health Science Administration from the University of Missouri in 1996. Since that time, she has become widely recognized in the healthcare industry for her forward-thinking approach to rehabilitative medicine and techniques by utilizing the most cutting edge and technologically advanced rehabilitative equipment available on the market. It is that experience and mindset that compelled AristaCare to bring her on board as Director of Rehabilitation and Program Development. Some of Bonnie's tremendous accomplishments at AristaCare include the implementation of some of our key clinical programs, such as the Stroke Recovery Rehabilitation Program, Cardiac Boot Camp, the VitalStim Dysphagia Therapy Program, the Healthy Healing Wound Care Program, and the Nostalgia Park Dementia Program.

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Lori E. Theiss
Creative Director
Lori E. Theiss, our Creative Director, brings forth a very colorful background to AristaCare. Graduating college with a BA in Communications and specialty in Advertising, she boasts a 26 year career in the promotional and print advertising industry while consistently holding top creative management positions. She has extensive experience in advertising, marketing, event planning & execution, promotional advertising, graphic design, and printing and applies this knowledge and expertise on a daily basis in her role at AristaCare. Lori possesses outstanding oral and written communication skills, and her organizational, administrative, and artwork abilities are second to none. Additionally, Lori's effervescent personality lends itself to excellent vendor & client communications. She enjoys a hands-on approach to designing and printing a large portion of AristaCare's marketing materials and presentations in-house, allowing AristaCare greater creative control overall. She is truly an asset to have on the AristaCare team.

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Gaddy Orshten
Director of Payroll
As the director and manager of our Payroll Department, Gaddy Orshten is responsible for overseeing all the payrolls throughout our various facilities. Gaddy has over 5 years experience in managing payroll in the healthcare industry. His position allows him to exercise his specialty in managing, cleaning, and organizing payroll to ensure a smooth and successful payroll process is in place and is executed properly and professionally. Additionally, Gaddy is currently recognized as an active Certified QuickBooks Pro-Advisor since 2007, and has several years of experience in financial reconstruction.

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Claridania Adames
Assistant to CEO & COO

Norman Besser
Accounts Payable Manager

Jenny Caba
Human Resources Assistant

Helen Delesky
Accounts Payables Assistant

Vanessa Fernandez
A/R Assistant Manager/Bookkeeper

Provi Finch
A/R Billing Assistant

Ari Genuth
Director of Purchasing

Nathan Goldberg
Accounts Payable Assistant

Gitty Goldstein
A/R Billing Assistant

Latoya Griswell
Receptionist

Connie Jeroslowitz
A/R Management Specialist

Jake Komin
Clinical Reimbursement Analyst

Zahava Krieger
A/R Billing Assistant

Chaim Levin
Controller

Mariel Ortiz
A/R Billing Assistant

Mark Rader
Director of Business Applications

Chaim Rottenberg
Executive Assistant

Jeff Schwartz
A/R Manager, "Special Assignments"

David Silberstein
A/R Manager

Michelle Wiener
Payroll Associate

Drew Zarillo
Network Administrator

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