Team

"Our Mission: To enhance the quality of life for our shared patients by easing their suffering while actively promoting their safety, functionality and dignity. — is what drives our care model"

From its inception more than 15 years ago, Dr. Posar and GuideStar Eldercare have provided an unmatched level of medical care and innovation. Dr. Posar recognized the demand for integrated psychiatric, neurological, medical, and psychological health care to adult and elderly patients with neurological and/or behavioral illness.

Dr. Posar's robust experience as both a Gerontologist and entrepreneur have helped elevate the standard of care provided to this often forgotten population.

Dr. Posar is President and Founder of the Steven L. Posar MD Eldercare Foundation.

“We are so mission focused at GuideStar Eldercare, I’m convinced that everything we do as a company ultimately benefits our patients and their quality of life.”

Sima serves as GuideStar Eldercare’s General Counsel, Chief Compliance Officer & EVP of Corporate Administration—overseeing Human Resources and ensuring GuideStar Eldercare’s compliance with laws, regulatory requirements, policies, and more. Her career path is one marked with notable achievements and professional responsibility, including, but not limited to: management-side labor and employment litigation, estate planning, and small business counsel.

Ms. Cutler holds a JD, magna cum laude, from Capital University Law School. She also earned a BA in Political Science with a Minor in Art History from The George Washington University.

"I am fortunate to work with an amazing team of professionals who make each day more robust and fulfilling than I could ever have anticipated."

Ed Shebel assumed the role of GuideStar Eldercare's Chief Marketing Officer in November 2018, bringing with him more than two decades of award-winning health care strategies and marketing tactics.

Ed prides himself for having begun his marketing career as an intern at a health care marketing company—washing coffee mugs and shredding documents. He worked his way from intern to Director of Business Development and Partner. He is responsible for more than 90 national and international awards for marketing strategy and tactics including Communicator Awards, Healthcare Advertising Awards, and Healthcare Marketing Impact Awards.

Maureen comes to GuideStar Eldercare with a solid background of successes in Healthcare Operations and Business Development as a senior leader focused on revenue generation and organizational strategy.

She has a reputation as a leader in client acquisition, business management, and team leadership while leveraging a unique mix of strategic and analytical expertise and consistently exceeding performance goals by aligning the effort of strong teams with project objectives. Maureen attended Purdue University and has a BA in Communication and a CMBA from University of Illinois.

As GuideStar Eldercare’s Senior Vice President of Behavioral Health, Dr. Heiser works to provide a comprehensive and compassionate approach to the assessment, diagnosis, and treatment of GuideStar Eldercare’s patients. Dr. Heiser utilizes pioneering care protocols that stress the importance of continuity of care to address issues in a timely and holistic manner to help identify and treat the underlying causes of our patients’ conditions before they lead to additional concerns.

Dr. Heiser earned his Psy.D. from Adler University and has years of practical clinical experience. He and his wife are proud parents to their dogs and enjoy vacationing in Florida to escape the chilly Midwest winters.

"I am committed to GuideStar Eldercare as we continue to serve a growing and very vulnerable population, and am indebted to those who allow us the privilege to serve their health care needs. Opportunities like this are few and far between"

As GuideStar Eldercare’s Senior Vice President of Nurse Practitioner Services, Anita brings decades of expertise as a nurse practitioner to each facet of GuideStar Eldercare. She oversees the team of nurse practitioners and assures that GuideStar Eldercare works closely with each facility’s nursing staff to provide an unparalleled continuum of care. She makes sure the entire GuideStar Eldercare clinical team strives to provide seamless ongoing neurological, medical and behavioral health care for each patient, and helps to maintain the highest level of clinical and pharmacological standards.

Anita holds a BSN from Boston University, and earned her MSN from Rivier University. She is a proud mother and grandmother, and can often be found gathering her family for seasonal photos, meals, and adventures.

Dr. Osuntokun completed residencies in Neurology and Psychiatry at the Indiana University School of Medicine and holds board certification in both. He brings extensive experience working with behavioral and neurological cases in both inpatient and out-patient settings.

At GuideStar Eldercare, he oversees quality measures, ensuring the highest levels of clinical outcomes. Dr. Osuntokun also provides oversight and collaboration for the GuideStar clinical team.

Dr. Shackson is board certified in Psychiatry, specializing in Geriatric Psychiatry. He earned his MD from Northeastern Ohio Universities College of Medicine. He has been well known among nursing homes in the greater Cincinnati region for more than two decades for his compassion and skill in addressing the psychiatric needs of geriatric patients.

Dr. Shackson oversees a team of psychiatrists, nurse practitioners, and psychologists working on-site in Ohio long-term care facilities and is excited to help advance the mission of GuideStar Eldercare.

Mike Boyum brings more than two decades of dedicated experience in the long-term care industry. Since joining GuideStar Eldercare in 2023, Mike has led the sales team with a focus on building new client relationships and ensuring that GuideStar Eldercare effectively meets the diverse needs of its partner organizations. Known for his deep commitment to client success, Mike has built lasting relationships with post-acute care facilities across the nation.

Before joining GuideStar, Mike served as Vice President of Sales at a prominent Midwest post-acute care organization. With more than 15 years of corporate account experience, he managed relationships with some of the largest post-acute providers in the country, gaining a nuanced understanding of the industry's unique demands. Mike’s expertise in aligning sales strategies with evolving healthcare needs enables him to support the long-term success of facilities in a dynamic market.

Mike holds a bachelor's degree from the University of Georgia.

As Vice President of Account Management, Susan brings more than 30 years of experience in the healthcare industry, 15 of which were building successful Account Management teams through client relationship management, strategic growth, and team leadership. Known for a results driven approach, she is dedicated to understanding client needs, fostering strong partnerships, and delivering exceptional service to drive sustainable growth.

In her role, Susan leads the GuideStar Account management team by ensuring the seamless execution of strategies that maximize client success and satisfaction while empowering her team to reach higher levels of performance. “Success is built on trust, communication, and going the extra mile to ensure our clients achieve their goals. With GuideStar’s Neurology forward, industry leading care model, and our team of dedicated professionals, together we will achieve this.”

Susan was an Air Traffic Controller in the Army before becoming a nurse. She holds certifications in both Managed Care and Wound Care. She is also certified in High-Performance Leadership through Cornell University.

“I was drawn to GuideStar because of the company’s mission to serve a population of patients that are grossly underserved and to be part of something amazing. Attracting talented individuals who are passionate about decreasing suffering and improving the quality of life for our patients brings me a level of satisfaction that I’ve never experienced in my career. I’m very proud to be part of the GuideStar family.”

Kimberly has worked in the healthcare industry for 15 years serving in various leadership roles overseeing recruiting, business development and staffing operations. She has partnered with some of the largest health systems and payer organizations throughout her 25-year career in talent acquisition. Kimberly is skilled at managing recruitment teams and providing strategic oversight for talent acquisition initiatives. Kimberly has a proven track record of creating and implementing processes that increase hiring and improve quality and retention. She is also experienced in implementing effective recruitment techniques that increase recruiter performance.

Recognized as an expert leader, speaker, motivator, and recruiter, Kimberly was ultimately recognized by the DFW Texas Recruiters Network (DFWTRN) as the Highest Producing Recruiter in her field. Kimberly graduated from Southern Methodist University with a degree in Organizational Behavior and a minor in Psychology. She is also a Certified Executive Leader achieved through Cornell University. Kimberly is a wife and proud mother of four girls (and a dog) and enjoys cooking, gardening, volunteering through her church, and vacationing.