About Dr. Syed W. Haider
Dr. Syed W. Haider is an Internal Medicine physician serving adult patients in Crystal Lake and the surrounding northern Illinois area. His professional work includes both outpatient Internal Medicine and hospital-based medical care.
Current physician directories list him with Northwestern Medicine Regional Medical Group in Crystal Lake. Medicare-derived provider information also associates him with Northwestern Medicine McHenry Hospital, Lake Forest Hospital, Delnor Hospital, and Central DuPage Hospital.
Dr. Haider has more than three decades of experience since graduating from medical school in 1992. His Internal Medicine background involves evaluating both new symptoms and long-term health conditions that may affect several organ systems at the same time.
Patients seeking similar physicians can browse the Doctiplus Internal Medicine directory.
Focus Areas
- Adult primary medical care
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Heart failure
- Coronary artery disease
- Chronic kidney disease
- Chronic lung disease
- COPD
- Anemia
- Acute medical illnesses
- Medication management
- Hospital-based medical care
- Coordination with specialists
High blood pressure often causes few obvious symptoms but can gradually increase the risk of cardiovascular and kidney complications. The National Heart, Lung, and Blood Institute provides patient information about high blood pressure, its diagnosis, and established treatment approaches.
Patients living with diabetes can also benefit from regular medical follow-up because blood glucose problems may affect the heart, kidneys, eyes, nerves, and circulation over time. The National Institute of Diabetes and Digestive and Kidney Diseases provides evidence-based information about diabetes management.
Internal Medicine and Patient Care Approach
Internal Medicine focuses on the overall medical needs of adults rather than limiting care to one organ or disease.
A patient with diabetes, high blood pressure, kidney disease, and heart disease may require several medications and different specialists. An internist helps consider how those conditions and treatments interact rather than viewing each problem separately.
Dr. Haider’s current provider records identify both Internal Medicine and Hospitalist practice. His reported clinical workload includes patients with cardiovascular disease, chronic kidney disease, diabetes, respiratory illness, and other complex adult medical conditions.
Evaluation may involve physical examination, medication review, blood testing, ECG testing, imaging, or referral to another specialty according to the patient’s symptoms and medical history.
Chronic Disease Management
Many conditions treated in Internal Medicine require long-term monitoring rather than a single course of treatment.
For example, chronic kidney disease may progress gradually and can be closely connected with diabetes and high blood pressure. The NIDDK provides patient guidance on chronic kidney disease, including testing and steps used to reduce the risk of further kidney damage.
Heart failure also requires coordinated care because symptoms such as shortness of breath, swelling, fatigue, and reduced exercise tolerance may change over time. Treatment may involve medication adjustment, monitoring of fluid balance, and collaboration between Internal Medicine and Cardiology.
Education and Credentials
Dr. Syed W. Haider graduated from medical school in 1992.
Current physician records identify his medical education with the University of Health Sciences Antigua School of Medicine and list completion of residency training at St. Luke’s Hospital in 1999.
His National Provider Identifier is 1912017898, with Internal Medicine recorded as his primary specialty. Current Medicare-derived records list Illinois medical license 036100063.
Practice Information
Dr. Haider is currently listed with Northwestern Medicine Regional Medical Group at 650 Dakota Street, Suite A, Crystal Lake, Illinois 60012.
Current 2026 provider information also lists a second Crystal Lake location and hospital affiliations within the Northwestern Medicine system.
Patients should confirm current appointment availability, insurance participation, office location, and new-patient status directly with the medical group before visiting.
Cardiologist
Reviews
There are no reviews yet.