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Who We Are
Executive Staff

Bob Seigmann
Executive Director
Bob Siegmann is the first Executive Director of Centerstone Health Services, which was founded in April 2019. He is a graduate of Wabash College with an MSW and MBA from Indiana University. He is a certified lean, six sigma black belt.
Siegmann previously served as Senior Vice President of Centerstone of Indiana, where he worked since 1982. In his most recent position there, he managed the psychiatric staff of 22 psychiatrists and ANPs. He also led various health and integrated health programs and worked closely with several Federally Qualified Health Centers. He has been recognized by the Indiana Council of Community Mental Health Centers “for outstanding service in the area of integrated care.”
Siegmann directed Solutions Training Institute for 18 years sponsoring more than 90 major events with many of the most noted clinicians of our time. Siegmann has served on many boards, including the Indiana Rural Health Association and HealthLINC health information exchange.

Vinita S. Watts, MD
Chief Medical Officer for Centerstone Health Services.
Dr. Watts provides child and adolescent psychiatry services and medication management for Centerstone Health Services, specializing in treating OCD and ADHD. She is Centerstone Health Services Behavioral Health Medical Director and Chief Medical Officer for Centerstone, Inc. She has worked at the Marr Road facility in Columbus for 30+ years. Her focus is on helping the children in her care heal and thrive, which often involves the whole family.

Terrance Grogan, DO FAAFP
Primary Care Medical Director
Dr. Grogan is the Medical Director of Centerstone Health Services. He collaborates with our nurse practitioner providers and oversees the medical operations of our clinics.
Dr. Grogan’s career in medicine began in 1996 when he graduated with his Doctor of Osteopathy Degree from the Philadelphia College of Osteopathic Medicine. After that, he completed his internship with Naval Medical Center and Portsmouth Naval Hospital Pensacola.
Dr. Grogan is a distinguished member of the American Society for Pharmacy Law, American Academy of Family Physicians, and the American College of Urgent Care Physicians. He has dedicated his life to delivering quality and compassionate care.
Centerstone Health Services Board
Casey Brewster | Jonathon Harp |
Stacy Cary | Gail Marcum |
Jeremiah Church | Gregory Marvel |
Mary Ellen Deikhoff | Lindsay Potts |
Michael Gastineau | Stephen Pritchard |
Amanda Gilley | Veronica Wong-Tovar |
April Ginnings |
ABOUT US
Centerstone Health Services is a Federally Qualified Health Center (FQHC), Look-alike. Under Prospective Payment System (PPS), FQHC Look-alikes receive higher cost-based reimbursement rates that enable them to provide low-cost health care to underserved communities.
The cost of prescription medications is a common barrier to health in low-income communities. FQHC Look-alikes qualify for Federal Drug Pricing Program discounts. These savings and higher reimbursement rates help us expand the services we offer.
OUR MISSION
Centerstone Health Services embraces the health and well-being for all people by providing comprehensive, accessible, quality health care regardless of income to promote wellness and restore health.
OUR VISION
Centerstone Health Services inspires and builds healthy lives through superior care, collaboration, education and awareness that improves the overall health status of the community.
OUR VALUES
- Treating all patients, staff, board members and visitors with respect.
- Maintaining a high level of care through National Standards.
- Taking pride in your work and the outcome of your patient’s care.
- Performing work with consistency and accuracy
- Moving deliberately with a purpose without sacrificing quality of care.
- Showing compassion at all times.
- Creating a positive culture of Team Spirit and cooperation.
- Professionalism in conduct and care.
- Maintaining privacy.
- Fostering an environment of safety.