About
Michael A. Zimmer, MD, MACP earned his medical degree from Jefferson Medical College in Philadelphia, Pennsylvania. He completed a General Surgery Internship and preliminary Residency at the University of Medicine and Dentistry of New Jersey. He then pursued an Internal Medicine Internship and Residency at Columbia University Hospital of Morristown Memorial. He holds board certification in Internal Medicine and opened his private practice in 1996.
Dr. Zimmer served as Governor of the Florida Chapter of the American College of Physicians from 2010 to 2014. He has served on the Florida Medical Association Electronic Medical Record Committee and as President of the South Pinellas Trust Malpractice Insurance Executive Board. He currently sits on the Florida Delegation to the American Medical Association. Dr. Zimmer also serves as an Assistant Clinical Professor at the University of South Florida's Morsani College of Medicine. He was among the earliest adopters of Electronic Medical Records in the region, initiating the system in his practice in 2002. He is passionate about preventive care, thorough diagnosis, and building authentic physician-patient relationships.
Education & Training
Medical School
Jefferson Medical College, Philadelphia, Pennsylvania
Residency
General Surgery Internship and preliminary Residency, University of Medicine and Dentistry of New Jersey; Internal Medicine Internship and Residency, Columbia University Hospital of Morristown Memorial
Additional Training
Assistant Clinical Professor, University of South Florida's Morsani College of Medicine
Certifications
Who is Dr. Zimmer right for?
Dr. Zimmer is well suited for adults who want a primary care physician deeply invested in prevention and long-term health. Patients managing chronic conditions benefit from his thorough, no-stone-unturned diagnostic approach. Those who value same-day access, minimal wait times, and direct physician contact outside office hours find his membership model a strong fit. Adults seeking on-site diagnostic services, including bone density scanning and pulmonary function testing, appreciate the convenience he provides. His extended appointments also work well for patients who want comprehensive coverage of their medical history and overall well-being in a single visit.
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Frequently Asked Questions
Dr. Zimmer specializes in internal medicine with a strong focus on preventive care and chronic disease management. He addresses a wide range of adult health concerns, from routine wellness and disease screening to more complex medical evaluations. His no-stone-unturned diagnostic approach means he takes time to investigate underlying factors rather than treating symptoms in isolation.
Yes. Dr. Zimmer holds board certification in Internal Medicine. He earned his medical degree from Jefferson Medical College in Philadelphia and completed his Internal Medicine Residency at Columbia University Hospital of Morristown Memorial.
Dr. Zimmer started his private practice in 1996. He has provided internal medicine care to thousands of patients over more than 25 years in the St. Petersburg, Florida area.
Yes. If a member requires hospitalization, Dr. Zimmer provides personal visits and coordinates directly with hospital staff. This continuity of care ensures members always have their primary physician involved during a hospital stay.
Dr. Zimmer dedicates significant clinical time to keeping patients healthy before problems arise. His extended physical exams cover medical history, family background, current concerns, and emotional well-being. He includes recommendations for preventive testing, labs, and disease screening as part of every routine physical.
Yes. Dr. Zimmer serves as an Assistant Clinical Professor at the University of South Florida's Morsani College of Medicine. He served as Governor of the Florida Chapter of the American College of Physicians from 2010 to 2014 and currently serves on the Florida Delegation to the American Medical Association.
Yes. Members have direct access to Dr. Zimmer by phone and email outside of office hours. This allows patients to get straightforward questions answered without scheduling a visit.
Dr. Zimmer offers pulmonary function testing, DEXA and osteoporosis scanning, routine gynecologic care including PAP tests and breast exams, and blood draws for laboratory testing. Having these services on-site reduces the need for additional appointments at outside facilities.
Doctor profile last updated October 31, 2026