Dr. Jacek Zajac, MD

Dr. Jacek Zajac, MD

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Endocrinology  ·  
Male  ·  
52 y/o
(21)

Accepting new patients

Dr. Jacek Zajac, MD is an endocrinology specialist in Lombard, IL and has been practicing for 27 years. He specializes in endocrinology.

Su Jeng Md, Sc

130 S Main St Ste 303

Lombard, IL 60148
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Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Cigna
  • Coventry Health Care
  • HealthLink
  • Humana
  • MultiPlan
  • Priority Health

Background Check

No malpractice claims found for Illinois
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check Dr. Zajac's experience treating your condition or procedure

Dr. Zajac's Top Procedures and Conditions

Treatment Frequency
Thyroid Disease
very high
very high

Treatment Frequency

Dr. Zajac treats Thyroid Disease more than 99% of his peers

Dr. Zajac treats this condition more than 99% of his peers

Diabetes Type 2
very high
very high

Treatment Frequency

Dr. Zajac treats Diabetes Type 2 more than 99% of his peers

Dr. Zajac treats this condition more than 99% of his peers

Diabetes Type 1
very high
very high

Treatment Frequency

Dr. Zajac treats Diabetes Type 1 more than 97% of his peers

Dr. Zajac treats this condition more than 97% of his peers

Dr. Zajac's conditions and procedures:

Abnormal Thyroid
Acromegaly and Gigantism
Adrenal Gland Diseases
Adrenal Incidentaloma
Adrenal Insufficiency
Autoimmune Diseases
Autoimmune Thyroid Diseases
Benign Tumor
Bone Disorders
Breast Diseases
Calcium Metabolism Disorders
Cancer
Congenital Adrenal Hyperplasia (CAH)
Continuous Glucose Monitoring
Cushing's Syndrome
Diabetes Counseling
Diabetes Mellitus, Secondary
Diabetes Type 1
Diabetes Type 2
Diabetes With Renal Manifestations
Diabetic Ketoacidosis
Female Infertility
Goiter
Graves' Disease
Growth Hormone Deficiency
Hashimoto's Disease
Hyperaldosteronism
Hypercalcemia
Hyperkalemia
Hyperlipidemia
Hyperparathyroidism
Hyperthyroidism
Hypoglycemia
Hypokalemia
Hypoparathyroidism
Hypopituitarism
Hyposmolality and Hyponatremia
Hypothyroidism
Kidney Disease
Lipid Disorders
Malaise and Fatigue
Menstrual Disorders (incl. Dysmenorrhea)
Obesity
Osteopenia
Osteoporosis
Overweight
Parathyroid (Gland) Tumor: Other than Malignant
Phosphorus Metabolism Disorders
Polycystic Ovarian Syndrome
Retina Diseases
Rickets
Symptomatic Menopause
Testicular Dysfunction
Thyroid Cancer
Thyroid Cyst
Thyroid Disease
Thyroiditis
Vitamin D Deficiency

About Me

Biography

Dr. Jacek Zajac, MD is an endocrinology specialist in Lombard, IL and has been practicing for 27 years. He specializes in endocrinology.

Specialties

  • Endocrinology

Board Certifications

  • Diabetes, Metabolism & Endocrinology
  • Internal Medicine

Education

  • Maimonides Med Center
    Residency Hospital
  • Beth Israel Med Center
    Residency Hospital
  • 1991
    Jagiellonian University Medical College, Faculty Of Medicine
    Medical School
    1991

Awards

Dr. Zajac's Reviews

Likelihood to recommend Dr. Zajac

4.5

Based on 21 reviews

5 Stars
80.95238095238095%
(17)
4 Stars
4.761904761904762%
(1)
3 Stars
4.761904761904762%
(1)
2 Stars
4.761904761904762%
(1)
1 Star
4.761904761904762%
(1)

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Dr. Zajac?
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Average Wait Time
  • 16 – 30 minutes
Dr. Zajac's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. Jacek Zajac, MD
RecentHighestLowestMost Helpful
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Dr Zajac is a great Doctor. when it comes to getting through to there office or getting a message to the Doctor needs much improvment! waitng for Doctor to compleate forms for insurance company for 2 weeks.
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Best dr around spends time and listens to you! Thats means alot to me! Would highly recomend ??
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Dr Zajac has been my doctor for 15 years and I would highly recommend him to anyone.He comes into the room and listens to what your needs are as well as your feelings. Never had anyone do that before. He doesnt look at you and move on to the next patient like your not important. Everyone is equal....Read More
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Locations

Insurance accepted

Accepted insurance can change. Please double-check when making an appointment.

Aetna
Aetna Test HMO
Choice Plus Test POS II
Blue Cross Blue Shield
Blue Card Test PPO
Cigna
Cigna HMO
Cigna PPO
Open Access Plus
Coventry Health Care
Coventry Health America PPO
HealthLink
HealthLink PPO
Humana
Choice Care PPO
Preferred PPO
MultiPlan
MultiPlan Test PPO
PHCS Network PPO
Priority Health
Priority PPO

Affiliated Hospitals

Check the quality of care at hospitals where Dr. Zajac treats patients.

Learn more

Alexian Brothers Medical Center

Elk Grove Village, IL

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