Department Subspecialty Care for Women’s Health
Primary Location Cleveland Clinic Main Campus
Type of Doctor Adults Only
Languages English
Surgeon Yes
Locations Specialties & Treatments

Specialty in Diseases & Conditions

  • Abdominal Adhesions
  • Abdominal Mass
  • Abdominal Pain
  • Abnormal Menstrual Bleeding
  • Abnormal Pap Smears
  • Abnormal Uterine Bleeding
  • Absent Period
  • Adenexal Mass
  • Dysmenorrhea
  • Dyspareunia
  • Ectopic Pregnancy
  • Endometriosis
  • Fibroid Tumor
  • Fibroids And Leiomyoma
  • Interstitial Cystitis | Pelvic Pain
  • Menorrhagia
  • Menstrual Disorders
  • Myomas
  • Pelvic Pain
View all 19 Specialties +


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Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - University of Louisville
Minimimally Invasive Gynecological Surgery
Louisville, KY USA

Residency - Phoenix Integrated Residency in ObGyn
Phoenix, AZ USA

Medical Education - University of Kentucky
Lexington, KY USA


  • Obstetrics and Gynecology
Research & Publications

Research & Publications

See publications for Mark Dassel, 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 3/2/2020, Dr. Dassel 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

36 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
4.8 out of 5
Explains 4.9
Courtesy, Respect & Concern 4.9
Patient Rating of Doctor 4.8

16 Patient Comments

Reviewed on Dec 3, 2019

Dr Dassel is wonderful... easy to talk to and communicates at my level. He was very thorough and patient with me during the exam, which was painful but that was the reason I was there.... to figure out my pain. I would absolutely recommend him to anyone seeking help.

Reviewed on Nov 15, 2019

Care is still in progress. So far, I feel as though Dr. Dassel and Dr. Luna are very knowledgeable on my issues. The visit was very thorough, and I did not feel rushed. They took the time they need to explore my problems and I feel as though my care is in very good hands. Also made me feel like I hbe a decision in my care. Highly professional. Wish he had better support staff in his office.

Reviewed on Nov 15, 2019

From an outcome base perspective its too soon to comment. I would recommend, I think Dr. Dassel makes up for the challenges encountered during onboarding, scheduling, file management, etc.

Reviewed on Sep 20, 2019

Dr. Dassel is the first doctor to actually listen to me about my endometriosis. He's awesome. You can tell that he really cares about his patients.

Reviewed on Sep 3, 2019

Everyone at *Dr. Dassel office is always so polite & accommodating.

Reviewed on Sep 3, 2019

*Dr. Dassel makes you feel like a person! He listens, answers, and is very thorough! No complaints from me!

Reviewed on Aug 23, 2019

Dr.Dassel was so very thorough, and really took his time with explaining things to my husband and myself. I felt confident in my treatment plan and my understanding of my options when I left. stellar doctor.

Reviewed on Aug 20, 2019

My doctor includes me fully in every decision. He makes me feel like he and I are on a team in my treatment. I have recommended him more times than I can count.

Reviewed on Aug 7, 2019

dr was amazing. he was able to answer all of my questions. He did a fantastic job.

Reviewed on Jul 16, 2019

Dr. Dassell is a phenomenal Dr, that is extremely caring and spends as much time with us as was needed. Highly recommend him!

Reviewed on Jul 16, 2019

Dr Dassell is wonderful! so knowledgeable and caring and spends as much time with us as needed. I would highly recommend him to anyone!

Reviewed on Jul 12, 2019

Dr. Dassell was amazing and spent so much time with me, making me feel heard and valued. I'm excited to continue working with him.

Reviewed on Jul 12, 2019

I was extremely impressed with Dr. Dassell and am looking forward to future visits.

Reviewed on Jun 27, 2019

Dr. Dassel is wonderful. He really cares about his patients. He takes the time to listen and explains things so well.

Reviewed on Apr 2, 2019

My experiences with *Dr. Passel have always been great! He takes his time to answer all your questions & describe treatment options as thoroughly as possible. He's also patient & willing to work with you & try different options to find the best treatment option for you. He is very compassionate & great at listening to all your concerns. I'm so thankful I found *Dr. Passel!

Reviewed on Apr 2, 2019

Even if *Dr. Dassel is running late, he never rushes through appointments & your time during your appointment is always respected.

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