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Dr. William Bayer, MD

Endocrinology, Diabetes & Metabolism* Age 63
Dr. William Bayer, MD
3.6 (34 Ratings)

Offers telehealth

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Dr. William Bayer, MD is a Diabetes & Metabolism Endocrinologist in Bloomingdale, IL.
Dr. William Bayer, MD
3.6 (34 Ratings)
 Share
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Dr. William Bayer, MD

Endocrinology, Diabetes & Metabolism* Age 63
Bloomingdale, IL
Accepting new patients
38 years of experience

Offers telehealth

Dr. William Bayer, MD is a Diabetes & Metabolism Endocrinologist in Bloomingdale, IL.

About

Dr. William Bayer, MD is a Diabetes & Metabolism Endocrinologist in Bloomingdale, IL and has 38 years experience. They graduated from Loyola University Chicago Stritch School of Medicine in 1986 and completed a residency at Loyola Medical Center.They currently practice at Northwestern Medicine Regional Medical Group and are affiliated with Northwestern Medicine Central Dupage Hospital and Edward Hospital-Main Campus. Dr. Bayer has experience treating conditions like Vitamin_Deficiency, Vitamin D Deficiency and Dyslipidemia among other conditions at varying frequencies. At present, Dr. Bayer received an average rating of 3.6/5 from patients and has been reviewed 34 times. Their office accepts new patients and telehealth appointments. Dr. Bayer is board certified in Diabetes, Metabolism & Endocrinology and accepts multiple insurance plans.

Offers Telehealth

This provider offers telehealth appointments. Call the office to schedule.

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Experience Check

Enter a condition or procedure
Vitamin_Deficiency
Vitamin D Deficiency
Dyslipidemia
Vitamin_Deficiency
Vitamin D Deficiency
Dyslipidemia
Vitamin_Deficiency
Vitamin D Deficiency
Dyslipidemia
Adrenal Gland Diseases
Autoimmune Thyroid Diseases
Autoimmune Thyroiditis
Diabetes Type 2
Endocrine Gland Cancer
Goiter
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Hashimoto's Disease
Hyperlipidemia
Hypoparathyroidism
Hypothyroidism
Neuroendocrine Tumors
Osteopenia
Osteoporosis
Overweight
Proteinuria
Thyroiditis
Thyroid Hormone Replacement
Diabetes Type 1
Graves' Disease
Hyperthyroidism
Lipid Disorders
Obesity
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Thyroid Cancer
Thyroid Nodule
Thyrotoxicosis
Adrenal Gland Cancer
Adrenal Incidentaloma
Adrenal Insufficiency
Benign Pituitary Gland Tumor
Calcium Metabolism Disorders
Diabetes Insipidus
Diabetes With Renal Manifestations
Diabetic Polyneuropathy
Growth Hormone Deficiency
Gynecomastia
Hypercalcemia
Hyperkalemia
Hyperparathyroidism
Hyperprolactinemia
Hypogonadism
Hypokalemia
Hypopituitarism
Hyposmolality and Hyponatremia
Hypothalamus Cancer
Lipoprotein Disorders
Malaise and Fatigue
Menstrual Disorders
Metabolic Syndrome
Mineral Metabolism Disorders
Morbid Obesity
Non-Alcoholic Fatty Liver Disease
Parathyroid (Gland) Disease
Peripheral Edema
Pheochromocytoma
Pituitary Gland Cancer
Pituitary Tumor
Primary Hyperparathyroidism
Renal Hyperparathyroidism
Secondary Diabetes Mellitus
Secondary Hyperparathyroidism
Secondary Hypertension
Testicular Dysfunction
Thyroid Cyst
Continuous Glucose Monitoring
Abdominal Pain
Abnormal Thyroid
Acromegaly and Gigantism
Acute Deep Vein Thrombosis (DVT)
Acute Venous Embolism Thrombosis
ADHD and-or ADD
Adhesive Capsulitis Shoulder
All Headaches (incl. Migraine)
Allergic Rhinitis
Anal or Rectal Pain
Anemia
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Animal Allergies
Anxiety
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Arthritis
Arthritis of the Elbow
Asthma
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Asymptomatic Post-Menopausal Status
Atherosclerosis
Atrophic Vaginitis
Back Pain
Bedwetting
Benign Chronic Pain Syndrome
Bladder Infection
Blood in Urine (Hematuria)
Bronchitis
Candidiasis of Skin and Nails
Carpal Tunnel Syndrome
Celiac Disease
Cellulitis
Chest Pain
Chronic Fatigue Syndrome
Chronic Neck Pain
Chronic Pain
Chronic Sinusitis
Congenital Adrenal Hyperplasia (CAH)
Congenital Hypothyroidism
Congenital Hypothyroidism with Diffuse Goiter
Constipation
COPD (Chronic Obstructive Pulmonary Disease)
Craniopharyngioma
Deep Vein Thrombosis (DVT)
Diabetes
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Diabetic Coma
Diabetic Ketoacidosis
Diarrhea
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Difficulty With Walking
Diverticulitis
Diverticulosis
Drug Induced Thyroiditis
Eczema and Contact Dermatitis
Emphysema
Enlarged Prostate (BPH)
Essential Tremor
Excessive Sweating
Female Infertility
Fever
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Fibromyalgia
Gait Abnormality
Gas-Bloat Syndrome
Gastroesophageal Reflux Disease (GERD)
Gout
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Hair Loss
Heart Disease
Heart Palpitations
Hemochromatosis
Hernia
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Herpes Zoster Without Complication
Hives
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Hyperaldosteronism
Hypertension
Hypoglycemia
Hypopituitarism Following Procedure
Intestinal Diverticulitis
Intestinal Diverticulosis
Iron Metabolism Disorders
Irritable Bowel Syndrome
Joint Pain
Leg and Foot Ulcers
Limb Pain
Limb Swelling Caused by Fluid Overload
Lipedema
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Low Back Pain
Magnesium Metabolism Disorders
Malnutrition
Menopausal and Postmenopausal Disorders
Migraine
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Multiple Endocrine Neoplasia
Multiple Endocrine Neoplasia, Type 2A (MEN 2A)
Muscle Cramping
Noninfectious Gastroenteritis and Colitis
Onychomycosis
Osteoarthritis
Osteoarthritis of Foot
Osteoarthritis of Hand
Osteoarthritis of Hand or Wrist
Osteoarthritis of Knee
Osteoarthritis of Shoulder
Osteoarthritis of Spine
Painful Urination (Dysuria)
Perimenopause
Peripheral Nerve Disorders
Plantar Fasciitis
Pneumonia
Pollen Allergy
Polycystic Ovarian Syndrome
Polymyalgia Rheumatica (PMR)
Polyneuropathy
Polyuria
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Primary Adrenocortical Insufficiency
Purpura
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Radiculopathy
Rash
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Renal Osteodystrophy
Ringworm
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Rosacea
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Sarcoidosis
Sciatica
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Shingles
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Shortness of Breath
Shoulder Tendinitis and Tenosynovitis
Sinus Tachycardia
Sinusitis
Sleep Apnea
Spermatocele
Sprains and Strains (incl. Muscle Tear)
Subacute Thyroiditis
Symptomatic Menopause
Thyroid Atrophy
Thyroid Goiter
Thyrotoxicosis Factitia
Tobacco Use Disorder
Tremor
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Trigeminal Neuralgia
Urinary Incontinence
Urinary Stones
Urinary Tract Infection (UTI)
Vaginitis or Vaginosis
Vertigo
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Vitamin B Deficiency
Vitamin B12 Anemia
Vitamin B12 Deficiency
Wheezing
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ACTH (Cosyntropin) Stimulation Test
Cholesterol Screening
Dexamethasone Suppression Test
Diabetes Counseling
Diabetes Screening
Diabetic Evaluation
Dynamic Endocrine Function Test
Fecal Occult Blood Test for Colorectal Cancer
Human Papillomavirus DNA Testing
Immunization Administration
Oral Glucose Tolerance Test
Thyroid Biopsy
Thyroid Nodule Evaluation
Thyroid Scan
Thyroid Screening
Ultrasound
Ultrasound, Thyroid
VAP Lipid Testing
Water Deprivation Test
Wellness Examination

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Aetna Better Health
    Aetna Choice (Aetna HealthFund) POS II
    Aetna HMO
    Aetna Savings Plus of AZ
    Aetna Student Health
    Aexcel Choice POS
    Aexcel Choice POS II
    Aexcel Elect Choice (Open Access) EPO
    Choice Plus POS II
    Elect Choice
    Limited Benefits Insurance Plan PPO
    Open Access Aetna Select
    Open Access Aetna Select (Aetna HealthFund)
    Open Access Elect Choice
    Premier Care Network
    Select
    Traditional Choice
    Value Performance Network
    Voluntary Group Medical Plan
  • National (BlueCard) PPO
  • Anthem Blue Cross Blue Shield PPO
  • Open Access
  • Blue Cross Blue Shield of Illinois
  • Blue Advantage PPO
  • Blue Advantage PPO
    Blue Card PPO
    Blue Choice PPO
    Blue HMO
  • Select Plus HMO
  • Blue Choice PPO
  • Medicare
  • HealthyBlue 2.0
    HealthyBlue Advantage
  • Choice Care (Humana)
  • Choice Fund
    Choice Fund Open Access Plus
    Cigna EPO
    Cigna Healthcare of Illinois HMO
    Cigna HMO
    Cigna POS
    Cigna PPO
    Global Health Benefits
    LocalPlus
    Network POS
    Open Access
    Open Access Plus
    Shared Administration
  • Aetna Better Health
  • Coventry Health Care of Illinois HMO
    Coventry Health Care of Illinois POS
    Coventry Health Care of Illinois PPO
    Health and Life PPO
  • Curative EPO
    Curative PPO
    Curative PPO Plus
  • First Health (Coventry Health Care)
    First Health (Coventry Health Care) PPO
  • Health Alliance
    Health Alliance PPO
  • HealthLink HMO
    HealthLink PPO
  • Interplan Health Group
  • HFN EPO
    HFN PPO
  • Choice
    Choice Care
    Choice Care POS
    Commercial EPO
    EPO PPO Open Access
    HCPS Open Access Coverage EPO
    HMO Premier HMO
    Humana EPO
    National POS
    National POS
    National POS – Open Access POS
    National Preferred PPO
  • Choice
  • Medicaid
  • MultiPlan PPO
  • Behavioral Health
  • Preferred Network Access PPO
  • Choice
    Choice Plus
    Choice Plus PPO
    Options
    Select Plus Gold PPO
    Select Plus HMO
  • Worker's Compensation WC

Locations

  1. 1 Northwestern Medicine Regional Medical Group
    233 S Gary Ave # 204, Bloomingdale, IL 60108
    Icon Directions Right Arrow Directions Phone Icon (630) 208-6775
  2. 2 Northwestern Regional Medical Group
    501 Thornhill Dr, Carol Stream, IL 60188
    Icon Directions Right Arrow Directions Phone Icon (630) 208-6775

Patient Satisfaction

Likelihood to recommend Dr. Bayer
3.6
Based on 34 Reviews
5 Stars (21)
4 Stars (0)
3 Stars (1)
2 Stars (1)
1 Star (11)

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Patient Reviews
Oct 01, 2023
Dr. Bayer will discuss all options with you and you will be the one to decide. He is open to looking at all aspects of your symptoms and ordering the appropriate tests. He is friendly and knowledgeable.
— Oct 01, 2023
See more reviews on Healthgrades
Photo: Dr. William Bayer, MD
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Dr. Bayer's Office & Staff

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Experience with Dr. Bayer

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  • 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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Telehealth Options
This provider has not specified a telehealth appointment method. Would you still like to make an appointment with Dr. Bayer?
Call now to make an appointment
(630) 208-6775

About Me

Specialties*
Endocrinology, Diabetes & Metabolism
Internal Medicine
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Education

Education

Medical Education
  • Loyola University Chicago Stritch School of Medicine
    1986
Medical Education

Board Certifications

Board Certifications
  • Diabetes, Metabolism & Endocrinology and Internal Medicine
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.

Residency

Residency Hospital
  • Loyola Medical Center
    1989
Residency Hospital

Fellowship

Fellowship Hospital
  • Loyola University Medical Center
Fellowship Hospital
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Bayer communicate via email?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Bayer offer telehealth services or virtual visits?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Bayer offer an online patient portal?
2 users said yes.
Yes
(2)
No
(0)
Does Dr. Bayer have free onsite parking?
3 users said yes.
Yes
(3)
No
(0)
Does Dr. Bayer offer weekend visits?
No users said yes.
Yes
(0)
No
(3)
Does Dr. Bayer offer evening visits?
No users said yes.
Yes
(0)
No
(2)
Does Dr. Bayer specialize in working with children or adolescents?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Bayer specialize in working with seniors?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Bayer specialize in couples therapy?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Bayer specialize in working with LGBTQ+ community?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Bayer accept insurance?
No responses yet.
Yes
(0)
No
(0)

Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. William Bayer, MD. To arrange an appointment, call the number on Dr. Bayer's profile.

Dr. Bayer frequently treats the following conditions: Vitamin_Deficiency, Vitamin D Deficiency and Dyslipidemia. See more on Sharecare.

Dr. William Bayer, MD is affiliated with Northwestern Medicine Central Dupage Hospital and Edward Hospital-Main Campus.

Yes, Dr. William Bayer, MD holds board certification in Diabetes, Metabolism & Endocrinology and Internal Medicine.

Hospital Affiliations

  • Northwestern Medicine Central Dupage Hospital

    25 N Winfield Rd, Winfield, IL

  • Edward Hospital-Main Campus

    801 S Washington St, Naperville, IL