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Dr. Aslam Zahir, MB BS

Dr. Aslam Zahir, MB BS

Medical Oncology*
35+ years of experience

Dr. Aslam Zahir, MB BS is a medical oncologist in Crystal Lake, IL and has over 35 years of experience in the medical field. Dr. Zahir has extensive experience in Renal Neoplasms & Resection. He graduated from Mr Medical College in 1986. He is affiliated with medical facilities Northwestern Medicine McHenry Hospital and Northwestern Medicine Central Dupage Hospital. He is accepting new patients and telehealth appointments.

4.4 Star Rating
Based on 46 reviews 4.4 Star Rating (46 reviews)

Practice

360 Station Dr Ste 201 Crystal Lake, IL 60014
Telehealth available

Make an Appointment

(815) 363-0066

Hospital Highlight

Dr. Zahir is affiliated with Northwestern Medicine Central Dupage Hospital Winfield, a highly rated hospital.

At a Glance

  • Areas of Expertise
    Dr. Zahir specializes in the areas of Hematology & Medical Oncology. • See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital
    Patient Safety Excellence Award™ • See hospitals
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Dr. Zahir's Reviews

Likelihood to recommend Dr. Zahir

4.4

46 ratings, 29 with a written review
5 Star
83%
83%
4 Star
2%
2%
3 Star
0%
0%
2 Star
0%
0%
1 Star
15%
15%

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RecentHighestLowestMost Helpful
What went well
No results
What could be improved
  • I didn't feel respected
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't trust the provider's decisions
  • Long wait times
Helpful
Mar 31, 2025
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What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Sharon M SAUNDERS – Jul 06, 2023
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What went well
No results
What could be improved
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Long wait times
2 people found this helpful
Helpful
Aug 27, 2021
×Post a ResponseAre you Dr. Aslam Zahir, MB BS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Patricia D. – Mar 18, 2021
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What went well
No results
What could be improved
No results
2 people found this helpful
Helpful
Apr 28, 2019
×Post a ResponseAre you Dr. Aslam Zahir, MB BS?
What went well
No results
What could be improved
No results
2 people found this helpful
Helpful
Apr 19, 2019
×Post a ResponseAre you Dr. Aslam Zahir, MB BS?
What went well
No results
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't trust the provider's decisions
  • Long wait times
7 people found this helpful
Helpful
Mc Henry , IL – Jan 17, 2019
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 people found this helpful
Helpful
Huntly, IL – May 17, 2017
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
4 people found this helpful
Helpful
Irene Smith in Crystal Lake, IL – May 17, 2017
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 people found this helpful
Helpful
chicago,IL – May 16, 2017
×Post a ResponseAre you Dr. Aslam Zahir, MB BS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 people found this helpful
Helpful
Chicago, IL – May 13, 2017
×Post a ResponseAre you Dr. Aslam Zahir, MB BS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 people found this helpful
Helpful
May 13, 2017
×Post a ResponseAre you Dr. Aslam Zahir, MB BS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
May 11, 2017
×Post a ResponseAre you Dr. Aslam Zahir, MB BS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Jon guton in Chicago, IL – May 11, 2017
×Post a ResponseAre you Dr. Aslam Zahir, MB BS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Park Hills, MO – May 11, 2017
×Post a ResponseAre you Dr. Aslam Zahir, MB BS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Valparaiso, IN – May 10, 2017
×Post a ResponseAre you Dr. Aslam Zahir, MB BS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Valparaiso, IN – May 10, 2017
×Post a ResponseAre you Dr. Aslam Zahir, MB BS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Chicago, IL – May 08, 2017
×Post a ResponseAre you Dr. Aslam Zahir, MB BS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Crystal Lake, IL – Apr 12, 2017
×Post a ResponseAre you Dr. Aslam Zahir, MB BS?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Poplar Grove, IL – Apr 12, 2017
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Leave a review

How was your experience with Dr. Zahir?

Know Before You Go

About Me

biography

Dr. Aslam Zahir, MB BS is a medical oncologist in Crystal Lake, IL and has over 35 years of experience in the medical field. Dr. Zahir has extensive experience in Renal Neoplasms & Resection. He graduated from Mr Medical College in 1986. He is...read more

  • Medical Oncology

  • Hematology

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Medical College Of Wisconsin

    Fellowship Hospital, 1992

  • St Joseph Hospital

    Internship Hospital, 1990

  • Mr Medical College

    Medical School, 1986
American Board of Medical Specialties®
American Board of Internal Medicine®
- 
Hematology
- 
Medical Oncology
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

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Focus on Breast Cancer

Locations

Practice

Congress Internal Medicine Associates LLC360 Station Dr Ste 201 Crystal Lake, IL 60014
1
Fox Valley Hematology and Oncology LTD1710 N Randall Rd Ste 300 Elgin, IL 60123
2

Practice

Ascension Medical Group Illinois Surgical Cancer Care Hoffman Estates1555 N Barrington Rd Ste 3350 Hoffman Estates, IL 60169
3
Office25070 Network Pl Chicago, IL 60673
4

Affiliated Hospitals

  • Northwestern Medicine Central Dupage Hospital

    25 N Winfield Rd
    Winfield, IL 60190
    Recipient of 8
    hospital awards

    Patient Safety Excellence Award™ (2025)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    Outstanding Patient Experience Award™ (2024, 2022)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    87%
    Patients said they were given information about recovering at home

    3% higher than the national average

    80%
    Patients would recommend the hospital to friends and family

    15% higher than the national average

    View all patient feedback

  • Northwestern Medicine McHenry Hospital

    4201 W Medical Center Dr
    McHenry, IL 60050
    Recipient of 33
    hospital awards

    America's 100 Best Hospitals Award™ (2025)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    America's 250 Best Hospitals Award™ (2025, 2024, 2023)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    88%
    Patients said they were given information about recovering at home

    4% higher than the national average

    79%
    Patients said that nurses always listened to them and explained things well

    4% higher than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality