About
M. Ammar Hatahet, MD, FACP earned his Doctorate of Medicine from the University of Damascus in 1988. He completed both his internship and internal medicine residency at St. Joseph Mercy Oakland in Pontiac, Michigan, finishing in 1993. He holds board certifications from the American Board of Internal Medicine and the American Board of Obesity Medicine. Dr. Hatahet has practiced in Oakland County, Michigan for decades and affiliates with McLaren Oakland.
Dr. Hatahet believes early detection gives patients the best chance to reach their full potential. He treats each age as a number, not a limit. Even at 60, he competes in soccer, plays tennis, and swims long distances. That personal commitment to active living shapes how he partners with patients on dietary plans and physical activity goals. For ten years, Blue Cross Blue Shield of Michigan has recognized him in its Patient-Centered Medical Home program. He reaches members after hours and on weekends, including home visits when appropriate. He puts it simply: healthy living is his passion and his calling.
Education & Training
Medical School
University of Damascus, Damascus, Syria – Doctorate of Medicine, 1988
Residency
Internal Medicine, St. Joseph Mercy Oakland, Pontiac, MI, 1991-1993
Additional Training
Internship: St. Joseph Mercy Oakland, Pontiac, MI, 1990-1991
Certifications
Conditions Treated
Who is Dr. Hatahet right for?
Dr. Hatahet is a strong fit for adults who want a physician deeply invested in prevention and early detection. Patients managing weight concerns, metabolic conditions, or chronic disease benefit from his dual expertise in internal medicine and obesity medicine. He works well with patients who want a hands-on partner for dietary and physical activity planning. Those who value around-the-clock physician access, including after-hours calls and home visits, will find his practice well-suited to their needs.
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Frequently Asked Questions
Dr. Hatahet specializes in internal medicine and obesity medicine. He treats adults managing weight-related conditions, chronic disease, and preventive health needs. His dual board certifications allow him to address metabolic health alongside general internal medicine concerns.
Yes. Dr. Hatahet holds board certifications from both the American Board of Internal Medicine and the American Board of Obesity Medicine. These credentials reflect his clinical focus on comprehensive adult medicine and weight-related health.
Dr. Hatahet earned his Doctorate of Medicine from the University of Damascus in 1988. He completed his internship and internal medicine residency at St. Joseph Mercy Oakland in Pontiac, Michigan, finishing his residency in 1993.
Dr. Hatahet partners with patients to build practical dietary and physical activity plans. He uses advanced health screenings and diagnostic data from the MDVIP Wellness Program to personalize each plan. His board certification in Obesity Medicine means he brings specialized clinical knowledge to these conversations.
Yes. Dr. Hatahet is reachable by phone 24 hours a day, seven days a week, including evenings and weekends. For situations where an office visit is not practical, he also makes home visits when appropriate.
Dr. Hatahet believes age is a number, not a barrier. He remains personally active at 60, competing in soccer, playing tennis, and swimming long distances. He applies that same mindset when partnering with patients on long-term wellness planning.
Yes. Blue Cross Blue Shield of Michigan has designated Dr. Hatahet a physician in its Patient-Centered Medical Home program for ten consecutive years. This program focuses on proactive, coordinated primary care for adult patients.
Dr. Hatahet affiliates with McLaren Oakland. This affiliation supports patients who need hospital-level care beyond what the practice provides directly.
Doctor profile last updated June 8, 2026