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Department Hematology and Medical Oncology
Primary Location Hillcrest Hospital
Type of Doctor Adults Only
Languages English
Surgeon No
Locations Specialties & Treatments

Treatment & Services

  • Cancer Center
  • Hematology Oncology
  • Internal Medicine
View all 3 Treatment & Services +

Specialty in Diseases & Conditions

  • Benign Hematology
  • Hematology
  • Malignant Hematologic Diseases
  • Oncology
View all 4 Specialties +


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Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - University Hospitals Cleveland Medical Center
Cleveland, OH USA

Residency - University Hospitals Case Medical Center
Internal Medicine
Cleveland, OH USA

Internship - University Hospitals Case Medical Center
Internal Medicine
Cleveland, OH USA

Medical Education - Case Western Reserve University School of Medicine
Cleveland, OH USA

Graduate School - Harvard Graduate School of Arts and Sciences
Cambridge, MA USA


  • Internal Medicine - Medical Oncology
  • Internal Medicine - Hematology
Research & Publications

Research & Publications

See publications for Willem van Heeckeren, MD.

(Disclaimer: This search is powered by PubMed, a service of the U.S. National Library of Medicine. PubMed is a third-party website with no affiliation with Cleveland Clinic.)

Industry Relationships

Industry Relationships

Cleveland Clinic physicians and scientists may collaborate with the pharmaceutical or medical device industries to help develop medical breakthroughs or provide medical expertise or education. Cleveland Clinic strives to make scientific advances that will benefit patient care and support outside relationships that promise public benefit. In order for the discoveries of Cleveland Clinic physicians' and scientists' laboratories and investigations to benefit the public, these discoveries must be commercialized in partnership with industry. As experts in their fields, Cleveland Clinic physicians and scientists are often sought after by industry to consult, provide expertise and education.

To assure professional and commercial integrity in such matters, Cleveland Clinic maintains a program that reviews these collaborations and, when appropriate, puts measures in place to minimize bias that may result from ties to industry. Cleveland Clinic publicly discloses the names of companies when (i) its physicians/scientists receive $5,000 or more per year (or, in rare cases, equity or stock options) for speaking and consulting, (ii) its physicians/scientists serve as a fiduciary, (iii) its physicians/scientists receive or have the right to receive royalties or (iv) its physicians/ scientists hold any equity interest for the physician's/scientist's role as inventor, discoverer, developer, founder or consultant.* In publicly disclosing this information, Cleveland Clinic tries to provide information as accurately as possible about its physicians' and scientists' connections with industry.

As of 1/30/2023, Dr. van Heeckeren has reported no financial relationship with industry that is applicable to this listing. In general, patients should feel free to contact their doctor about any of the relationships and how the relationships are overseen by Cleveland Clinic. To learn more about Cleveland Clinic's policies on collaborations with industry and innovation management, go to our Integrity in Innovation page.

Public Health Service-Reportable Financial Conflicts of Interest. Cleveland Clinic scientists and physicians engage in basic, translational and clinical research activities, working to solve health problems, enhance patient care and improve quality of life for patients. Interactions with industry are essential to bringing the researchers' discoveries to the public, but can present the potential for conflicts of interest related to their research activities. Click here to view a listing of instances where Cleveland Clinic has identified a Public Health Service (PHS)-Reportable Financial Conflict of Interest and has put measures in place to ensure that, to the extent possible, the design, conduct and reporting of the research is free from bias.

* Cleveland Clinic physicians and scientists subscribe to the guidance presented in the PhRMA Code on Interactions with Healthcare Professionals and the AdvaMed Code of Ethics on Interactions with Health Care Professionals. As such, gifts of substantial value are generally prohibited.

Patient Satisfaction Reviews

174 Patient Satisfaction Reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

The comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Cleveland Clinic.

Overall Star Ratings
4.9 out of 5
Explains 4.9
Courtesy, Respect & Concern 4.9
Patient Rating of Doctor 4.9

33 Patient Comments

Reviewed on Dec 28, 2022

I always feel dr. Van Heeckeren listens to my concerns

Reviewed on Dec 16, 2022

My care by the doctor has been excellent. He takes all the time I need to answer questions and explain my upcoming treatment. I feel very lucky to have him as my doctor.

Reviewed on Dec 8, 2022

Dr. VanHeeckeren is the best!

Reviewed on Dec 2, 2022

All was good, no other comments.

Reviewed on Oct 28, 2022

Doctor and all who I met in his office were great and helpful!

Reviewed on Oct 20, 2022

Very good, Dr. VanHeeckeren actually saw me a little bit early, no waiting at all.

Reviewed on Oct 20, 2022

I saw Dr. vanHeeckeren when he was at UH. My experience with the Cleveland clinic was excellent.

Reviewed on Oct 20, 2022

Dr. vanHeeckeren ordered a blood test for me, which I was able to do as soon as my appointment with him was over, and that too was quick and easy

Reviewed on Sep 30, 2022

Only my 2nd appointment with the doctor but he is a terrific guy and good physician.Made both me and my wife comfortable and gave us details that we could easily understand.

Reviewed on Sep 20, 2022

We saw a doctor in central KY but wanted a second opinion. We are so thankful to have the opportunity to see Dr. Van Heekeren! He has a very kind demeanor and is very thorough and informative.

Reviewed on Sep 9, 2022

Dr Van Heeckeren is excellent

Reviewed on Sep 8, 2022

Always a pleasure to speak with Dr VanHeeckeren. I have been seeing him for years. He is professional, very knowledgeable and genuinely cares. How refreshing

Reviewed on Aug 12, 2022

Thank you . I do become a bit nervous maybe even a touch more than a bit but a appreciated how I was treated and Dr van heekeran I appreciate his knowledge and his expertise in his field that hopefully will keep me going for quite some time. Again thank you

Reviewed on Aug 12, 2022

Dr is always very concerned and to the point which is what I expect.

Reviewed on Aug 5, 2022

Dr.VanHeekeren has always been very professional, knowledgeable and concerned about my health.

Reviewed on Jul 22, 2022

Dr. V always goes the extra mile in terms of health care. A good man..

Reviewed on Jul 14, 2022

Dr. Willem vanHeeckeren is an excellent doctor. Very caring of his patients.

Reviewed on Jul 14, 2022

I would highly recommend Dr. VanHeeckeren.

Reviewed on May 27, 2022

The doctor was personable and thoroughly explained everything.

Reviewed on May 26, 2022

Excellent MD but moreover an excellent person.

Reviewed on Apr 20, 2022

Dr Van Heekren is the best doctor I seen him in Mentor and when he left UH Seidman I had to follow him because he know exactly what to do with my cancer.

Reviewed on Apr 14, 2022

Was greeted by nurse who was very pleasant. She took my info and the wait for the doctor was short.

Reviewed on Apr 14, 2022

Dr vanHeeckeren was wonderful. The appointment was not rushed and he addressed all of my concerns.

Reviewed on Mar 31, 2022

Dr. Van Heeckeren is a great doctor. Personable, knowledgeable and caring.

Reviewed on Mar 4, 2022

I would rate Dr. Van Heeckeren very high in all areas.

Reviewed on Feb 23, 2022

My Doctor is always very good in explaining everything.

Reviewed on Feb 15, 2022

We really liked the dr and the LPN

Reviewed on Feb 14, 2022

Dr. Heeckeran was so attentive, informative, professional and so easy to talk with. He answered my questions and took all the time I needed. He was great!

Reviewed on Feb 11, 2022

Dr VanHeeckeren is so attentive, genuine and caring

Reviewed on Feb 2, 2022

Excellent physician and staff. A very good experience.

Reviewed on Feb 2, 2022

My physician had an excellent and subtle sense of humor!

Reviewed on Jan 27, 2022

All experiences with Dr. VanHeeckeren and staff were very good. Courteous, kind, and attentive to my needs and questions.

Reviewed on Jan 27, 2022

Excellent care provider!

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