28 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Zajac, Endocrinologist in Lombard, IL?
Dr. Jacek Zajac, MD is an Endocrinologist, who primarily practices in Lombard, IL with 2 additional practice locations. He has been practicing for over 28 years. Dr. Zajac completed his residency at Beth Israel Med Center. Dr. Zajac is fluent in English, Polish, and Russian, and is currently seeing new patients. Dr. Zajac’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Zajac’s office at (630) 629-3610.
Where did Dr. Zajac go to medical school and complete their residency?
Residency: Beth Israel Med Center | Maimonides Medical Center | Beth Israel Deaconess Medical Center Program
What languages does Dr. Zajac speak?
Dr. Zajac and their clinical team can communicate with patients in the following languages:
English
Polish
Russian
What conditions does Dr. Zajac treat?
As an Endocrinologist, Dr. Zajac diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Zajac. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Type 2 Diabetes
- Type 2 Diabetes with High Blood Sugar
- Type 2 Diabetes with Chronic Kidney Disease
- Type 2 Diabetes with Other Circulation Problems
- Diabetes Type 2
- Type 2 diabetes
- Hyperglycemia
- Diabetic Kidney Problems
- Diabetes Complicationss
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
- Diabetic Hyperglycemia
- High Blood Glucose
- High Sugar Levels
- Diabetic Chronic Kidney Disease
- Long-term Kidney Failure from Type 2 Diabetes
- Type 2 Diabetes End-Stage Renal Disease
- Diabetic Vascular Complications
- Diabetes Heart and Blood Vessel Problems
- Diabetes Mellitus Circulatory Issues
ICD-10 Codes:
- E119: Type 2 diabetes mellitus without complications
- E1165: Type 2 diabetes mellitus with hyperglycemia
- E1122: Type 2 diabetes mellitus with diabetic chronic kidney disease
- E1159: Type 2 diabetes mellitus with other circulatory complications
Also known as:
- Hypothyroidism
- Congenital hypothyroidism
- Hypothyroidism (Underactive Thyroid)
- Underactive Thyroid
- Low Thyroid Function
ICD-10 Codes:
- E039: Hypothyroidism, unspecified
Also known as:
- Type 1 Diabetes
- Type 1 Diabetes with High Blood Sugar
- Diabetes Type 1
- Type 1 diabetes
- Diabetes Tests & Diagnosis
- Hyperglycemia
- Juvenile Diabetes
- Insulin-Dependent Diabetes
- T1D
- Diabetic Hyperglycemia
- High Glucose in Type 1 Diabetes
- High Blood Sugar Episode
ICD-10 Codes:
- E109: Type 1 diabetes mellitus without complications
- E1065: Type 1 diabetes mellitus with hyperglycemia
Also known as:
- Nontoxic Multinodular Goiter
- Thyroid Disease
- Multinodular Goiter
- Lumpy Enlarged Thyroid
ICD-10 Codes:
- E042: Nontoxic multinodular goiter
Also known as:
- Testicular Hypofunction
- Testicular Disorder
- Underactive Testicles
- Low Testicular Function
- Hypogonadism
ICD-10 Codes:
- E291: Testicular hypofunction
Also known as:
- Hyperthyroidism
- Hyperthyroidism (Overactive Thyroid)
- Overactive Thyroid
- Thyrotoxicosis
- High Thyroid Function
ICD-10 Codes:
- E0590: Thyrotoxicosis, unspecified without thyrotoxic crisis or storm
Also known as:
- Age-Related Osteoporosis
- Fractures
- Osteoporosis
- Senile Osteoporosis
- Primary Osteoporosis
- Bone Thinning from Aging
ICD-10 Codes:
- M810: Age-related osteoporosis without current pathological fracture
Which procedures does Dr. Zajac perform as an Endocrinologist?
As an Endocrinologist, procedures performed by Dr. Jacek Zajac may include:
- Adrenal Surgery
- Comparative Genomic Hybridization
- D and C / Vacuum Aspiration
- Diabetes Blood Sugar Management
- Diabetes Care - Kidney Disease Monitoring
- Diabetes Consultation
- Doppler Ultrasound
- Egg Freezing/ Fertility Preservation
For detailed information, please contact Dr. Zajac's office.
Does Dr. Zajac accept my insurance?
Dr. Zajac accepts most major insurance plans. Important: Please call our office at (630) 629-3610 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Zajac accept in Lombard, IL?
Dr. Zajac in Lombard, IL accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Benefit and Risk Management Services (BRMS)
Blue Cross and Blue Shield of Nebraska
CVS Health (formerly Aetna)
Express Scripts
Health Care Service Corporation (HCSC)
Humana
Medicare
State of Tennessee
UnitedHealthcare
View All Insurances
Where is Dr. Zajac's office located?
Dr. Jacek Zajac's Primary Practice
2500 S Highland Ave Ste 104
Lombard, IL 60148
(630) 629-3610
What is Dr. Zajac's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Zajac's National Provider Identifier (NPI) number is 1396817912.
What common questions do patients ask about Dr. Zajac?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Zajac
What is Dr. Jacek Zajac's specialty?
Dr. Zajac is a Endocrinologist near Lombard, IL. An internist specializing in disorders of the endocrine glands, including the thyroid and adrenal glands. This specialist also manages a range of conditions such as diabetes, metabolic and nutritional disorders, obesity, pituitary disorders, and menstrual and sexual health issues. Contact Dr. Zajac to book an appointment today.
Is this Dr. Jacek Zajac affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Zajac is affiliated with Endeavor Health Elmhurst Hospital, Northwestern Memorial Hospital, Advocate Lutheran General Hospital, Froedtert Pleasant Prairie Hospital, Endeavor Health Edward Hospital, Advocate Illinois Masonic Medical Center which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Endocrinologist?
Explore Endocrinologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Jacek Zajac accepting new patients in Lombard, IL?
Yes, Dr. Jacek Zajac is accepting new patients at this time.
Does Dr. Jacek Zajac offer online booking?
Please contact Dr. Zajac's office at (630) 629-3610 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Jacek Zajac?
Please contact Dr. Zajac's office at (630) 629-3610 for information regarding telehealth appointment availability or for scheduling assistance.
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