Dr. Ronald A. Slonek, MD | Bloomingdale, IL | Internist

.about .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. Ronald Slonek has practiced internal medicine for 44 years and is affiliated with Northwestern Medicine Central Dupage Hospital. He treats hypertension and hypertensive emergency. He speaks English and Spanish.

Dr. Slonek earned his medical degree from the University of Illinois at Chicago College of Medicine and completed his residency at the U.S. Department of Veterans Affairs. He sees patients in Bloomingdale and Winfield, Illinois. Patients on Vitals rate Dr. Slonek 4.67 out of 5.

Overview based on verified provider data

accepting new patients
4.7

18 Ratings
44 years of experience
16 insurance plans accepted
speaks English, Spanish
U S Department Of Veterans Affairs
7 written reviews
1 specialty
8 areas of expertise
1 hospital affiliation
6 office locations
Male

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me

Based on patient feedback. Read the reviews

Dr. Slonek's Ratings and Reviews

4.7

18 Ratings with 7 written Reviews

Average Wait Time 23 Minutes

How was your appointment with
Dr. Slonek?

Patients’ Perspective

Gave an accurate diagnosis: (10) Did WellNeeds Improvement (0)
Had a good bedside manner: (10) Did WellNeeds Improvement (0)
Spent time with me: (10) Did WellNeeds Improvement (1)
Provided follow-up after the visit: (10) Did WellNeeds Improvement (0)
Flexible scheduling: (10) Did WellNeeds Improvement (1)
Saw me in a timely manner: No Ratings
Staff was courteous: No Ratings

18 ratings & reviews

Sort:

Showing 1 to 7 of 7 reviews

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

In the fall of 2010 I went to Dr Sloneck with rib pain. After several tests including blood and X-ray Dr. Sloneck called me late in the evening and suggested that I may have something more serious. He suggested a cat scan and directed me to an oncoligstist The diagnosis turned out to be multiple myeloma, a blood cancer. After treatment I am in complete remission. I am still on maintenance - and still going strong due to Dr Slonecks great medical incite. Thank you Dr Sloneck who kept After me and calling me when I did not respond at first. Dr Sloneck is truly a dedicated Doctor. I am grateful!

August 29th, 2019

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

I've been seeing Dr. Slonek for quite a few years and have never had a bad experience. My wait time is usually minimal but has been 45 minutes twice. I love being able to review my visits and test results on line, it's very helpful. I can't say enough good things about this doctor and DMG in general.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

April 28th, 2016

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. Slonek quickly diagnosed a rather serious form of cancer, notified me and gave me direction to my next step for treatment. Because of his diligent follow up, I have been in remission for more than 4 years and continue maintenance therapy.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

March 14th, 2015

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

I have full faith in Dr. Slonek. I believe he is an excellent doctor.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

April 24th, 2012

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Excellent and caring doctor. I have recommended him and will continue to do so. He has been an immense help when other doctors didn't seem to want to be 'bothered'. I can't say enough good things about him.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

July 6th, 2011

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Made an appointment a month in advance based on the good reviews since choosing a new doctor. Waited in the examination room for over an hour. I had to leave but at the front desk, I had to wait for 10 more minutes to get the copay back, i asked if he is done and the massage from the doctor was that since I told them I was leaving, I have to wait for another hour to see him. Total disregard of my time. And, no one bothered to even apologize. Our whole family will be pulling out of Dupage group.

Did Well

Needs Improvement

Spent time with me
Flexible scheduling

May 26th, 2011

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

I've been seeing Dr. Slonek for several years and he continues to be patient, caring, and thorough. He is an excellent doctor who I have recommended to those looking for a "good" doctor.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

April 23rd, 2011

Dupage Medical Group Immediate Care

220 Springfield Dr Ste 100Bloomingdale, IL 60108

Tel: (888) 693-6437

Mon10:00 am - 10:00 pm

Tue10:00 am - 10:00 pm

Wed10:00 am - 10:00 pm

Thu10:00 am - 10:00 pm

Fri10:00 am - 10:00 pm

Sat10:00 am - 4:00 pm

Sun10:00 am - 4:00 pm

Duly Health and Care

220 Springfield DrBloomingdale, IL 60108

DuPage Medical Group Internal Medicine

30 Stratford Dr Ste 110Bloomingdale, IL 60108

Tel: (630) 893-2210

Mon8:00 am - 5:00 pm

Tue8:00 am - 5:00 pm

Wed8:00 am - 5:00 pm

Thu11:00 am - 7:00 pm

Fri8:00 am - 5:00 pm

Sat8:00 am - 12:00 pm

SunClosed

Dupage Medical Group Internal Medicine

30 Stratford DrBloomingdale, IL 60108

Tel: (630) 893-2210

Northwestern Medicine Central Dupage Hospital

25 N Winfield RdWinfield, IL 60190

Edward Heart Hospital

801 S Washington StNaperville, IL 60540


Dr. Ronald Alan Slonek, MD	Dr. Adewumi Bakare DMSc, PA-C	Dr. Augusto Guevara, MD	Dr. Sergio Rodriguez, MD
Internal Medicine	Internal Medicine	Internal Medicine	Internal Medicine
Accepts New Patients	Accepts New Patients
4.7 (18 Ratings)	0 (0 Ratings)	0 (0 Ratings)	4 (4 Ratings)
44 Years of Experience			38 Years of Experience
No Virtual Visit Option	Virtual Visit Available	No Virtual Visit Option	No Virtual Visit Option
Speaks English, Spanish	Speaks English, Spanish, Yoruba, French, Russian, Arabic, Chinese, Chinese (Mandarin)	Speaks English	Speaks English, Spanish
Bloomingdale , IL	Mesquite , TX	Oak Park , IL	Chicago , IL
Med School: University Of Illinois At Chicago College Of Medicine	Med School: University of Lynchburg - DMSc		Med School: Rush Med Coll of Rush University, Chicago Il
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Accepts Medicare
Accepts Medicaid
Aetna
Blue Cross Blue Shield
Blue Cross Blue Shield - PPO
Blue Cross Blue Shield of Illinois
Cigna
Humana
Humana - PPO
Medicaid - Medicaid
Medicaid - Medicaid (Managed)
Medicare
Medicare - Medicaid
Medicare - Medicare
Meritain Health
Tricare
UnitedHealthcare
UnitedHealthcare - Medicare

Internal Medicine

Check-up
Cholesterol Management
Heartburn
Immunization
Physical
Vaccination
Weight Loss
Weight Loss (non-surgical)

Education & Training

Residency

Completed their residency at U S Department Of Veterans Affairs.

Medical School

Graduated from University Of Illinois At Chicago College Of Medicine in 1982.

NPI Number

Dr. Slonek's NPI number is 1003884610.

David K Hoshizaki
Emergency Medicine
34 Years Exp | Chicago, IL
(0)
Thomas Patrick Gibson
Nephrology
58 Years Exp | Wilmette, IL
(0)
Fernando Ramon Valerio Pascua
Critical Care Medicine
27 Years Exp | Oak Lawn, IL
(0)
Richard Eric Hawkins
Infectious Disease
44 Years Exp | CHICAGO, IL
(0)
Patricia Mae Spencer
Infectious Disease
44 Years Exp | CHICAGO, IL
(0)
Ammar Alhakim
Pediatrics
35 Years Exp | Westmont, IL
(0)
Miao Jenny Hua
Public Health & General Preventive Medicine
7 Years Exp | Chicago, IL
(0)
Angella Eva Koritsaris
Anesthesiology
11 Years Exp | CHICAGO, IL
(0)
Stanley George Rabinowitz
Infectious Disease
60 Years Exp | CHICAGO, IL
(0)
Charles Arthur Kallick
Infectious Disease
72 Years Exp | LEMONT, IL
(0)

Which hospitals is Dr. Ronald Slonek affiliated with?: Dr. Ronald Slonek is affiliated with Northwestern Medicine Central Dupage Hospital.
How can I make an appointment with Dr. Ronald Slonek?: You can find contact information for Dr. Ronald Slonek here on Vitals.
Is Dr. Ronald Slonek accepting new patients?: Dr. Ronald Slonek is accepting new patients on Vitals. View Dr. Ronald Slonek's profile on Vitals to make an appointment.
Does Dr. Ronald Slonek accept virtual/telehealth appointments?: Dr. Ronald Slonek has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Dr. Ronald Slonek accept my insurance?: You can see the insurance plans that Dr. Ronald Slonek accepts on their Vitals profile.

This provider profile is built using data from:

NPPES NPI Registry
State medical licensing boards
Healthcare system and provider network data

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.

Copyright © 2026 Vitals Consumer Services, LLC. US Patent No. 8, 694, 441. All Rights Reserved.
As more fully set forth in this website's terms of use . (1) nothing contained on or offered by or through this website should be construed as medical advice and should not be relied upon for medical diagnosis or treatment. Vitals Consumer Services, LLC ("Vitals"). the provider of this website, does not recommend or endorse any particular healthcare provider whose information or ratings appear on this website; and (2) Vitals has granted you a limited license to access and use this website for your own noncommercial use. You are not permitted to copy, reproduce, distribute, transmit, mirror, frame, scrape, extract, wrap, create derivative works of, reverse engineer, decompile or disassemble any part or aspect of this website.