Dr. Syed W. Haider

Name: Dr. Syed W. Haider
Specialty: Internal Medicine
Qualification/Board Certification: MD; Board certification not specified
Affiliation: Loyola University Medical Center, Northwestern Medicine-McHenry, Huntley, Woodstock Hospitals, Central Dupage Physician Group
Locations: Crystal Lake, Illinois
Languages Spoken: English
Accepting New Patients: Yes
NPI Number: 1912017898

About the Doctor

Dr. Syed W. Haider is an internist practicing in Crystal Lake, Illinois, with over 21 years of experience. He received his medical degree from the University of Health Sciences Antigua and completed his internal medicine residency at St. Luke’s Hospital. He is affiliated with multiple top-tier hospitals, including Loyola University Medical Center and Northwestern Medicine-McHenry, Huntley, Woodstock Hospitals. Dr. Haider has earned a perfect 5/5 patient rating from 52 reviews, the “Patients’ Top Choice” award, and three patient awards for clearly explaining conditions and being recommended by patients and other medical professionals. He is an expert in 13 conditions, including chronic hypertension, high cholesterol, enlarged prostate, chronic diabetes, and coronary artery disease. Dr. Haider accepts new patients and a wide range of insurance plans including Medicare, Medicaid, Aetna, Humana, Cigna, Blue Cross, and United Healthcare.

• Graduate of University of Health Sciences Antigua

• Residency in Internal Medicine at St. Luke’s Hospital

• Over 21 years of clinical experience

• 5/5 patient rating (52 reviews); Patients’ Top Choice with 3 awards

• Expert in hypertension, high cholesterol, enlarged prostate, diabetes, coronary artery disease, and 8 other conditions

• Accepts new patients

• Affiliated with Loyola University Medical Center and Northwestern Medicine hospitals

Education & Training

Medical School – University of Health Sciences Antigua
Residency – St. Luke’s Hospital, Internal Medicine 
Fellowship/Additional Training – Not specified

Medical Conditions Treated

• Chronic hypertension

• High cholesterol (hyperlipidemia)

• Enlarged prostate (benign prostatic hyperplasia)

• Chronic diabetes (type 2 diabetes mellitus)

• Coronary artery disease

• Chronic kidney disease

• Chronic obstructive pulmonary disease (COPD)

• Heart failure

• Thyroid disorders

• Gastroesophageal reflux disease (GERD)

• Anemia

• Arthritis

• Depression and anxiety

Medical Procedures Performed

• Comprehensive adult physical examinations

• Chronic disease management (hypertension, diabetes, hyperlipidemia)

• Cardiovascular risk assessment

• Prostate health evaluation (digital rectal exam, PSA counseling)

• Electrocardiogram (EKG/ECG) interpretation

• In-office laboratory testing and result interpretation

• Preventive health screenings (cancer, cholesterol, blood pressure)

• Immunizations and vaccinations

• Medication management and reconciliation

• Referrals to specialists (cardiology, endocrinology, urology, etc.)

Services Offered

Dr. Syed W. Haider provides comprehensive internal medicine services for adult patients, focusing on prevention, diagnosis, and management of chronic and acute medical conditions. His practice emphasizes patient-centered care, with a reputation for knowledge, compassion, and collaborative treatment planning. He offers annual wellness exams, management of complex chronic diseases such as diabetes, hypertension, and coronary artery disease, as well as acute illness treatment. Dr. Haider also provides prostate health assessments, cholesterol management, and cardiovascular risk reduction. Patients appreciate his responsiveness, efficiency, and clear communication. As a hospitalist, he also coordinates inpatient care at affiliated hospitals. New patients are welcome for primary care.

• Annual physical exams and preventive health screenings

• Chronic disease management (hypertension, diabetes, high cholesterol, coronary artery disease, COPD, chronic kidney disease)

• Enlarged prostate evaluation and medical management

• Acute illness diagnosis and treatment (respiratory infections, urinary tract infections, etc.)

• Cardiovascular risk assessment and heart disease prevention

• Medication reviews and optimization for polypharmacy

• Preoperative medical evaluations

• In-office EKG and lab testing (blood glucose, lipid panel, complete blood count, urinalysis)

• Coordination of care with specialists and hospitalists

• Patient and family education on lifestyle modifications

Accepted Insurances

• Aetna (EPO, HMO, Medicaid, Medicare, POS, PPO)

• Blue Cross Blue Shield of Michigan (POS, PPO)

• Cigna (PPO)

• CMS Medicare (Medicare)

• Elevance (EPO, HMO, Medicare, POS, PPO)

• HCSC (HMO, PPO)

• Humana (HMO, Medicare, PPO)

• Medica (PPO)

• Molina (HMO, Medicare)

• United Healthcare (HMO, Medicare, POS, PPO)

• Accepts Medicare and Medicaid

Practice Locations

Address: 650 Dakota St, Ste A, Crystal Lake, IL 60012
Phone: (815) 455-6000

Hospital Affiliations

• Loyola University Medical Center – Maywood, Illinois

• Northwestern Medicine-McHenry, Huntley, Woodstock Hospitals – McHenry, Illinois