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Dr. Jacek Zajac, MD

Endocrinology, Diabetes & Metabolism*
4.6 (29)
Map Pin Small Lombard, IL
Accepting new patients

Offers telehealth

Overview of Dr. Jacek Zajac, MD

Dr. Jacek Zajac, MD is an Endocrinology, Diabetes & Metabolism Specialist in Lombard, IL. They graduated from JAGIELLONSKI UNIVERSITY / COLLEGE OF MEDICINE and is affiliated with Elmhurst Hospital - Main Campus, Advocate Illinois Masonic Medical Center, Edward Hospital - Main Campus and Advocate Good Samaritan Hospital. Patients rated Dr. Zajac an average 4.6 star rating.

Dr. Zajac works at Practice in Lombard, IL. They frequently treat conditions like Diabetes Type 2 and Thyrotoxicosis along with other conditions at varying frequencies. They are accepting new patients and accept Aetna, Blue Cross Blue Shield and Cigna as well as other major insurance plans. Please call ahead to schedule an appointment and to confirm all accepted insurance plans.

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Dr. Zajac's Office Locations

  1. 1
    Office
    2500 S Highland Ave Ste 104, Lombard, IL 60148 Icon Directions Right Arrow Directions Phone Icon (630) 629-3610
  2. 2
    Suburban Retina Ltd.
    130 S Main St Ste 303, Lombard, IL 60148 Icon Directions Right Arrow Directions Phone Icon (630) 629-3610

Hospital Affiliations
Admitting Hospitals

Admitting hospitals are where the provider is credentialed to see patients, perform procedures, and send patients for continuous care.

  • Elmhurst Hospital - Main Campus
  • Advocate Illinois Masonic Medical Center
  • Edward Hospital - Main Campus
  • Advocate Good Samaritan Hospital

Experience & Treatment Frequency

NEW FEATURE

What is treatment frequency?

Our treatment frequency feature helps you understand howoften a provider performs or treats a specificprocedure/condition compared to other doctors. Providersrank in one of four frequency categories:

Very HighFrequency
HighFrequency
NormalFrequency
May Perform

Specific procedures/conditions that don’t haveenough data are indicated with “May Perform”. We encourageyou to contact the provider with questions about theirexperience.

Search for conditions or procedures.
Diabetes Type 2
Thyrotoxicosis
Thyroid Hormone Replacement
Diabetes Type 2
Thyrotoxicosis
Thyroid Hormone Replacement

Treatment frequency



Many providers have expertise treating multiple conditions or procedures. FindCare uses a variety of data sources to determine which conditions or procedures a provider treats and their level of experience.
Diabetes Type 2
Thyrotoxicosis
Thyroid Hormone Replacement
Diabetes Type 1
Adrenal Gland Diseases
Adrenal Insufficiency
Autoimmune Thyroid Diseases
Autoimmune Thyroiditis
Calcium Metabolism Disorders
Diabetes With Renal Manifestations
Diabetic Ketoacidosis
Diabetic Polyneuropathy
Dyslipidemia
Endocrine Gland Cancer
Goiter
  • View other providers who treat Goiter
Graves' Disease
Hashimoto's Disease
Hypercalcemia
Hyperlipidemia
Hyperparathyroidism
Hyperthyroidism
Hypoglycemia
Hypogonadism
Hypokalemia
Hypoparathyroidism
Hyposmolality and Hyponatremia
Hypothalamus Cancer
Hypothyroidism
Lipid Disorders
Malaise and Fatigue
Metabolic Syndrome
Mineral Metabolism Disorders
Morbid Obesity
Obesity
  • View other providers who treat Obesity
Osteoporosis
Parathyroid (Gland) Disease
Peripheral Edema
Pituitary Tumor
Secondary Diabetes Mellitus
Testicular Dysfunction
Thyroid Cyst
Thyroid Nodule
Thyroiditis
Vitamin D Deficiency
Vitamin_Deficiency
Continuous Glucose Monitoring
Abnormal Thyroid
Acanthosis Nigricans
Acromegaly and Gigantism
Adrenal Gland Cancer
Adrenal Incidentaloma
Benign Pituitary Gland Tumor
Congenital Adrenal Hyperplasia (CAH)
Congenital Hypothyroidism
Conn's Syndrome
Craniopharyngioma
Cushing's Syndrome
Diabetes Insipidus
Diabetic Coma
Drug Induced Thyroiditis
Familial Hypercholesterolemia
Female Infertility
Gestational Diabetes
Growth Hormone Deficiency
Gynecomastia
Hemochromatosis
Hyperaldosteronism
Hyperandrogenization Syndrome
Hyperkalemia
Hyperprolactinemia
Hypopituitarism
Iodine Deficiency
Iron Metabolism Disorders
Klinefelter Syndrome
Leg and Foot Ulcers
Lipedema
  • View other providers who treat Lipedema
Magnesium Metabolism Disorders
Male Infertility
Menstrual Disorders
Neuroendocrine Tumors
Non-Alcoholic Fatty Liver Disease
Osteopenia
Overweight
Perimenopause
Pheochromocytoma
Phosphorus Metabolism Disorders
Pituitary Gland Cancer
Polycystic Ovarian Syndrome
Primary Adrenocortical Insufficiency
Primary Hyperparathyroidism
Proteinuria
Renal Hyperparathyroidism
Secondary Hyperparathyroidism
Secondary Hypertension
Subacute Thyroiditis
Symptomatic Menopause
Thyroid Cancer
Thyroid Goiter
Thyrotoxicosis Factitia
Vitamin B12 Anemia
ACTH (Cosyntropin) Stimulation Test
Cholesterol Screening
Dexamethasone Suppression Test
Diabetes Counseling
Diabetes Screening
Diabetic Evaluation
Dynamic Endocrine Function Test
Oral Glucose Tolerance Test
Thyroid Nodule Evaluation
Thyroid Scan
Thyroid Screening
Ultrasound, Thyroid
VAP Lipid Testing
Water Deprivation Test
Check your insurance
    Close Icon
    Please double-check when making an appointment.

    View All Accepted Carriers

    • Aetna
    • Blue Cross and Blue Shield of Illinois
    • Blue Cross Blue Shield
    • Cigna
    • First Health
    • Humana
    • UnitedHealthCare

    * Please verify this information when scheduling an appointment.

    Ratings & Reviews
    Reviews are displayed in date order and collected from patients who have agreed to reporting accurate and fair reviews. Providers with no reviews may have a new FindCare profile, or no submitted reviews on FindCare yet.

    Learn more about how FindCare's ratings and reviews work

    4.6
    Average provider rating
    Based on 29 ratings
    Patient Ratings (29)
    5 Star
    (24)
    4 Star
    (1)
    3 Star
    (1)
    2 Star
    (2)
    1 Star
    (1)
    Leave a review

    How was your appointment with Dr. Zajac?

    Jan 10, 2024
    He is the best endocrinologist
    — Jan 10, 2024
    Read more reviews on Healthgrades
    Photo: Dr. Jacek Zajac, MD
    How would you rate your experience with Dr. Jacek Zajac, MD?
    • Likelihood of recommending Dr. Zajac to family and friends

    Dr. Zajac's Office & Staff

    • Ease of scheduling urgent appointments
    • Office environment, cleanliness, comfort, etc.
    • Staff friendliness and courteousness
    • Total wait time (waiting & exam rooms)

    Experience with Dr. Zajac

    • Level of trust in provider's decisions
    • How well provider explains medical condition(s)
    • How well provider listens and answers questions
    • Hpends appropriate amount of time with patients

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    About Dr. Jacek Zajac, MD

    Specialties*
    • Endocrinology, Diabetes & Metabolism

    • *Healthline does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
    Specialties*
    Languages Spoken
    • English
    Languages Spoken
    NPI Number
    • 1396817912
    NPI Number
    A National Provider Identifier (NPI) is a unique 10-digit identifier issued by the government to healthcare providers.

    Education & Certifications

    Medical Education
    • JAGIELLONSKI UNIVERSITY / COLLEGE OF MEDICINE
    Medical Education
    Board Certifications
    • Diabetes, Metabolism & Endocrinology
    Board Certifications
    What’s a board certification and why is it important that my provider has one?

    A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

    Frequently Asked Questions

    Dr. Jacek Zajac, MD is accepting new patients on Healthline FindCare. You can check to see if Dr. Zajac is offering online scheduling or call the provider’s office for more information.

    Dr. Zajac has indicated that they do offer telehealth services. Please call the provider’s office at for more information.

    Dr. Zajac has seen patients for Diabetes Type 2 and Thyrotoxicosis, and more. You can see other conditions treated by Dr. Zajac on their profile. Please call the provider’s office to confirm all visit reasons.

    29 patients have reviewed Dr. Zajac. The overall rating for this provider is 4.6. You can read verified reviews and ratings and leave your own review based on your experience with Dr. Zajac.

    Whether a person prefers to schedule an appointment online or over the phone with Dr. Zajac, there are benefits to both methods. A person calling to schedule an with Dr. Zajac appointment can ask questions about the practice, provider availability, conditions treated, procedures performed, and if their insurance carrier is accepted. While online scheduling is quicker, easier, allows one to view a wide range of appointment times, and may provide the ability to sync with a personal calendar.

    Telehealth Options
    This provider has not specified a telehealth appointment method. Would you still like to make an appointment with Dr. Zajac, or would you like to choose another provider and have an online appointment right now?
    Find provider online now
    Call now to make an appointment
    (630) 629-3610

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