Dr. Robert Wolf, MD
Internist
605 Edward Dr
Romeoville, IL 60446
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Availability last updated 08/13/2025
Dr. Robert Wolf, MD
Internist
605 Edward Dr
Romeoville, IL 60446
Nischal Raya, MD, is a pulmonary and critical care medicine physician at Midwest Respiratory Ltd., which has offices in Joliet and New Lenox, Illinois. He is board-certified in pulmonary diseases, critical care medicine, and internal medicine.
Dr. Raya earned his Bachelor of Science at the Ohio State University in Columbus, Ohio, where he graduated magna cum laude in 2011. He then earned his Doctor of Medicine from The University of Toledo, located in Toledo, Ohio. He then went on to complete his internship and fellowships in pulmonary medicine and critical care at RUSH University Medical Center in Chicago.
To stay up to date with the latest advancements in medicine, Dr. Raya maintains professional memberships with the American Thoracic Society, the Society of Critical Care Medicine, the American College of Physicians, and the American Medical Association.
At Midwest Respiratory Ltd., Dr. Raya treats a wide range of conditions but specializes in treating patients with lung and respiratory issues, like asthma, pneumonia, COPD, emphysema, and complicated chest infections. He also welcomes patients seeking treatment for breathing issues or post-COVID care to schedule an appointment at Midwest Respiratory Ltd.
To schedule an appointment with Dr. Raya, call the nearest Midwest Respiratory Ltd. office or request an appointment online today.
Dr. Nischal Raya, MD
Internist
678 Cedar Crossings Drive
Suite 201
New Lenox, IL 60451
Diana Doeing, MD, is an internal medicine, pulmonary medicine, and critical care physician at Midwest Respiratory, Ltd., providing high-quality respiratory care to people in Joliet and New Lennox, Illinois.
Dr. Doeing studied at the University of Chicago Pritzker School of Medicine, earning her medical degree. After graduation, she remained at the University of Chicago and completed an internship, a residency, and a fellowship.
At Midwest Respiratory, Ltd., Dr. Doeing diagnoses and treats various respiratory ailments, including emphysema and chronic cough. She has special interests in severe asthma, lung cancer, and advanced bronchoscopy.
Dr. Doeing is a member of several professional organizations, including the Midwest Institute of Robotic Surgery. She also holds staff privileges at Silver Cross Hospital and routinely performs robotic-assisted surgeries to improve respiratory health and quality of life.
Outside of work, Dr. Doeing is active in the respiratory care community. She regularly participates in continuing education and enjoys attending industry conferences and events. Dr. Doeing welcomes anyone seeking improved respiratory health to Midwest Respiratory, Ltd.
Dr. Diana Doeing, MD
Internist
678 Cedar Crossings Drive
Suite 201
New Lenox, IL 60451
Mohamad Al-Massalkhi, MD, is a critical care and pulmonary medicine physician at Midwest Respiratory Ltd., which has offices in Joliet and New Lenox, Illinois. He is board-certified in critical care medicine, pulmonary disease medicine, sleep medicine, hospice and palliative care medicine, and internal medicine. He has over 30 years of experience working in the medical field.
Dr. Al-Massalkhi completed medical school at Damascus Medical School in Syria in 1991. After relocating to the United States, Dr. Al-Massalkhi completed his internship at Mercy Hospital and Medical Center in Chicago. He then completed fellowships in critical care and pulmonary sleep medicine at Rosalind Franklin University.
Dr. Al-Massalkhi specializes in treating patients with asthma, COPD, emphysema, lung disease, lung cancer, and sarcoidosis. He also can assist patients with smoking cessation and tobacco use disorder.
To schedule an appointment with Dr. Al-Massalkhi, call the nearest Midwest Respiratory Ltd. office or request an appointment using the online booking feature today.
Dr. Mohamad Al-Massalkhi, MD
Internist
678 Cedar Crossings Drive
Suite 201
New Lenox, IL 60451
Dr. Robert Wolf, MD
Internist
701 Heritage Woods Dr
Minooka, IL 60447
Dr. Robert Wolf, MD
Internist
1023 S Cedar Rd
New Lenox, IL 60451
Dr. Robert Wolf, MD
Internist
12631 187th St
Mokena, IL 60448
Dr. Robert Wolf, MD
Internist
40 Timberline Dr
Lemont, IL 60439
Dr. Robert Wolf, MD
Internist
21507 Wolf Rd
Frankfort, IL 60423
Dr. Robert Wolf, MD
Internist
3712 Grove Rd
Oswego, IL 60543
William Crevier, MD, is a board-certified internal medicine and pediatrics physician at The Center for Primary Healthcare in Orland Park, Illinois. He is also the president and medical director of the practice and cares for patients of all ages: from infants through adults.
Dr. Cevier grew up in Vermont. He attended the University of California at Berkeley, graduating magna cum laude with a degree in Biochemistry. He received his medical degree from the University of Chicago and completed his residency at Loyola University Medical Center in Maywood, Illinois. He’s an advocate for access to care and served as the founding executive director of two Christian community health centers.
Dr. Crevier sincerely enjoys getting to know his patients. He gives each and every patient the time and attention they deserve in a warm, welcoming atmosphere.
Dr. Crevier maintains his advanced credentials to stay up-to-date with the latest advances in internal medicine. He is board-certified in internal medicine and pediatrics.
He is currently accepting new patients and is excited to welcome them to the practice.
Dr. William Crevier, MD
Internist
16450 104th Ave.
Suite 101
Orland Park, IL 60467
Philip Moore, MD
Internist
2088 Ogden Ave Suite 210
Aurora, IL 60504
Joseph Rabi, MD, is a pain management and rehabilitation physician practicing at The Neuroscience and Spine Institute, located in Orland Park, Illinois.
Dr. Rabi completed his undergraduate coursework at DePaul University in Chicago, Illinois, in 2006. He then went on to earn his Doctor of Medicine from St. George's University School of Medicine in Grenada. Dr. Rabi completed his internal medicine internship through the University of Illinois at Chicago at Advocate Christ Medical Center before completing his physical medicine and rehabilitation residency through the University of Chicago at Schwab Rehabilitation Hospital.
An active contributor to the field, Dr. Rabi has helped to author numerous publications, research projects, abstracts, and presentations. He has a special interest in treating work/personal injuries, electrodiagnostics, opioid misuse, spine pain, concussions, migraines, regenerative medicine, and chronic pain.
To stay up to date with the latest advancements in medicine, Dr. Rabi maintains memberships with the American Academy of Physical Medicine and Rehabilitation, the American Society of Regional Anesthesia and Pain Medicine, the North American Pain Society, and the American College of Physicians.
Outside of the office, Dr. Rabi enjoys running, trivia, playing and watching sports, and dining out at restaurants.
Joseph Rabi, MD
Physiatrist
10 Orland Square Dr
#10C
Orland Park, IL 60462
Dr. Robert Wolf, MD
Internist
1030 Aurora Ave
Naperville, IL 60540
Dr. Robert Wolf, MD
Internist
17301 80th Avenue
Tinley Park, IL 60477
Dr. Robert Wolf, MD
Internist
8021 151st St
Orland Park, IL 60462
Felix Obregon
Internist
1971 Gowdey Rd, Ste 205
Naperville, IL 60563