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About Us

who we are

Pulmonary Allergy Critical Care & Sleep Associates (PACCSA) is comprised of ten physicians. Eight are board-certified pulmonary and critical care physicians, and five of which are also sleep disorder specialists. We have one adult and pediatric allergist & immunologist and one critical care nephrologist. Our three office locations serve Oakland, Macomb, Lapeer, Wayne, and Ingham counties. 


Founded in 1987, our team of physicians has established the reputation as the leading Pulmonary, Critical Care, Sleep, and Allergy specialists in southeast Michigan. They hold leadership roles at Ascension Providence Rochester Hospital, McLaren Oakland Hospital,  and McLaren-Lapeer Region Hospital and serve on medical advisory boards.


Our physicians bring a wealth of knowledge from various backgrounds to our practice. They all share a genuine compassion for people with pulmonary issues and are driven to improving their quality of life. We believe in providing the most innovative approach for diagnosing and treating our patient's conditions and continually strive to deliver exceptional care. We are committed to offering the highest quality of care and compassion in the areas of lung disease, allergy, sleep disorders and other related medical conditions. Our doctors and staff are dedicated to answer your questions and provide you with a friendly and comfortable environment.


Meet Our Physicians

m. wael al-ameri, m.d., f.c.c.p.

Dr. Al-Ameri is board certified in pulmonary and critical care medicine. He earned his medical degree at the University of Aleppo Faculty of Medicine in Syria. His internal medicine residency and his pulmonary and critical care fellowships were completed at Wayne State University in Detroit, Michigan. He began his practice in 1987.

robert go, m.d., f.c.c.p.

Dr. Go is board certified in pulmonary and critical care medicine. He earned his medical degree at the Cebu Institute of Medicine in the Philippines. His internal medicine residency was completed at the Cabrini Medical Center in New York City, New York and his pulmonary and critical care fellowships at Wayne State University in Detroit, Michigan.


He joined Dr. Al-Ameri in 1987, creating the beginnings of the high standard of care that defines Pulmonary Allergy Critical Care & Sleep Associate

muhammad kashlan, m.d., f.c.c.p., f.a.a.s.m.

 Dr. Kashlan is board certified in pulmonary, critical care, and sleep medicine. He earned his medical degree at Damascus University Faculty of Medicine in Syria. His internal medicine residency was completed at St. Barnabas Medical Center in Livingston, New Jersey and his pulmonary, critical care, and sleep fellowships at Wayne State University in Detroit, Michigan. He joined PACCSA in 1999.

mazen sabbaq, m.d.

 Dr. Sabbaq is board certified in pulmonary, critical care, and sleep medicine. He earned his medical degree at Damascus University Faculty of Medicine in Syria. His internal medicine residency was completed at Englewood Hospital and Medical Center in Englewood, New Jersey and his pulmonary, critical care, and sleep fellowships at the NYU School of Medicine in New York City, New York. ​He joined PACCSA in 2007.

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ahmad ghabsha, m.d., f.c.c.p.

Dr. Ghabsha is board certified in pulmonary, critical care, and sleep medicine. He earned his medical degree at Damascus University Faculty of Medicine in Syria. His internal medicine residency was completed at the Detroit Medical Center in Detroit, Michigan, his pulmonary and critical care fellowships at the University of Wisconsin School of Medicine and Public Health in Madison, Wisconsin, and his sleep medicine fellowship at Wayne State University in Detroit, Michigan. He joined PACCSA in 2009.

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emad shehada, m.d., f.c.c.p.

Dr. Emad Shehada is board certified in pulmonary and critical care medicine. He earned his medical degree at the University of Aleppo Faculty of Medicine in Syria. His internal medicine residency and his pulmonary and critical care fellowships were completed at Wayne State University in Detroit, Michigan. He joined PACCSA in 2015.

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ammar ghanem, m.d., f.c.c.p., d.a.b.s.m.

 Dr. Ghanem is board certified in pulmonary, critical care, and sleep medicine. He earned his medical degree at Damascus University Faculty of Medicine in Syria. His internal medicine residency was completed at Guthrie Robert Packer Hospital in Sayre, Pennsylvania, his pulmonary and sleep fellowships at Marshall University Joan C. Edwards School of Medicine in Huntington, West Virginia, and his critical care fellowship at the University of Pittsburgh School of Medicine in Pittsburgh, Pennsylvania. He joined PACCSA in 2016. 

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fadi alkhankan, m.d., f.c.c.p.

Dr. Alkhankan is board certified in pulmonary, critical care, and sleep medicine. He earned his medical degree at the University of Aleppo Faculty of Medicine in Syria. His internal medicine residency and pulmonary medicine fellowship were completed at Marshall University Joan C. Edwards School of Medicine in Huntington, West Virginia, and his critical care medicine fellowship at Wayne State University in Detroit, Michigan. He joined PACCSA in 2017. 

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tina abraham, d.o.

Dr. Abraham is board certified in allergy & immunology medicine. She earned her medical degree at the Michigan State University College of Osteopathic Medicine. Her internal medicine residency was completed at McLaren Oakland Hospital in Pontiac, Michigan and her allergy and immunology fellowship at University Hospitals Cleveland Medical Center in Cleveland, Ohio. She joined PACCSA in 2018.

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hani alkhankan, m.d.

Dr. Alkhankan is board certified in nephrology and critical care medicine. He earned his medical degree at Ain Shams University Faculty of Medicine in Egypt. His internal medicine residency was completed at  Marshall University Joan C. Edwards School of Medicine in Huntington, West Virginia, his nephrology fellowship at the University of Kentucky in Lexington, Kentucky, and his critical care fellowship at Saint Louis University in St. Louis, Missouri. He joined PACCSA in 2019.