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Wellness Center

addiction treatment services

The Insight Wellness Center has been providing addiction treatment services to the community since 2018. The center is directed by Dr. Joseph Masternick Jr., D.O., a board-certified internist and addictionologist with over 20 years of experience in the field of substance abuse, and Dr. Shushruth Shenava, M.D., a fellowship-trained anesthesiologist and pain management doctor.

The clinic offers medication-assisted therapy for opiate addiction and high-risk behaviors, and additional services are provided either on site or by referral to create a comprehensive treatment system. Both providers are Suboxone trained and accepting new patients. The center closely collaborates in an extensive network of service providers to further enhance services to the individual. The Wellness Center provides patients with a personalized plan for recovery in a welcoming and accepting atmosphere.

WELLNESS CENTER
SERVICES

Maintenance Services  |  Short-Term Detoxification  |  Medical Services  |  Laboratory Services

insight Wellness center team

Joseph M. Masternick Jr., D.O.

Erin Haslem, PA-C

Joseph M. Masternick Jr., D.O.

Addiction Medicine & Family Medicine

Dr. Joseph Masternick is a board-certified physician specializing in addiction medicine and family medicine at Insight Behavioral Health. He earned his medical degree from Des Moines University College of Osteopathic Medicine and completed his post-graduate training at St. John Hospital in Detroit.
As a dedicated practitioner, Dr. Masternick is committed to helping patients overcome addiction and achieve holistic wellness. He is recognized as a Diplomat of the American Society of Addiction Medicine and the American Board of Addiction Medicine. Dr. Masternick plays a vital role as a physician evaluator for Michigan’s Licensing and Regulatory Affairs (LARA) and Health Professional Recovery Program (HPRP), ensuring high standards of care.
Dr. Masternick brings extensive experience as the former medical director of a hospital acute care inpatient substance abuse unit and an affiliated ambulatory detoxification program. Currently, he serves as a trustee for the American Osteopathic Academy of Addiction Medicine and holds the role of medical director at the Wellness Clinic Chemical Dependency Treatment Center, part of Insight Wellness Center.
He also serves as a consultant to the Beaumont Health System Chronic Pain Consortium, where he contributes to strategic planning for pain management services across multiple hospitals.

Erin Haslem, PA-C

Board Certified Physician Assistant

Erin Haslem is a board-certified physician assistant specializing in addiction medicine and psychiatry. She is dedicated to delivering compassionate, evidence-based care to individuals living with substance use disorders. With a strong commitment to helping patients navigate the challenges of alcohol and opioid addiction, Erin combines clinical expertise with empathy to support long-term recovery and improved mental health.

Erin brings a well-rounded clinical background to her practice, with prior experience in addiction medicine, primary care, and urgent care. This diverse foundation allows her to approach patient care holistically, recognizing the intersection of acute medical needs, chronic conditions, mental health, and substance use. Her broad experience strengthens her ability to assess, treat, and support patients through every stage of recovery.

MAKE AN APPOINTMENT

To schedule an appointment, contact our office at (810) 275-9153 or fill out the form below.

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CONTACT INFORMATION

FLINT, MI

4800 S. Saginaw St., Suite 1625 Flint, MI 48507

810-223-0199

810-223-0199

wellness@iinn.com

HOURS OF OPERATION

Monday – Friday
8 a.m. to 5 p.m

4800 S. Saginaw St., Suite 1625 Flint, MI 48507