

Dr. Lynn Van Ummersen, MD
Dr. Lynn Van Ummersen, MD is a medical oncologist in Lake Mary, FL. She is affiliated with medical facilities AdventHealth Fish Memorial and AdventHealth Deland. She is accepting new patients and telehealth appointments.
Florida Cancer Specialists & Research Institute
805 Currency Cir Lake Mary, FL 32746Make an Appointment
Hospital Highlight
Dr. Van Ummersen is affiliated with AdventHealth Fish Memorial Orange City, a highly rated hospital.
At a Glance
- Area of Expertise
- Explains Conditions Well
- Offers TelehealthThis doctor offers telehealth appointments. Call the office to schedule an appointment.
- Practices at Top Hospital

Save money with free prescription discounts
Experience Check
Search for experience in a specific area
Insurance Check
Search for your insurance carrier and choose your plan type
Dr. Van Ummersen's Reviews
Likelihood to recommend Dr. Van Ummersen
5 star | 89% | 89% |
4 star | 0% | 0% |
3 star | 4% | 4% |
2 star | 0% | 0% |
1 star | 7% | 7% |
Your trust is our top concern.
We strive to keep reviews honest, trustworthy, and fair.Doctors can not pay for good reviews, nor can they pay to have negative reviews removed.
We monitor all reviews to ensure they comply with our guidelines and don’t include personal information, profanity, libel, defamation, harassment, obscenity or fraud.
Any reviews that are deemed fraudulent or violate our guidelines will be removed immediately.
All reviews are confirmed and audited before publication, and community members have the ability to flag inappropriate content for further review by our team.
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- Appointment scheduling
- Staff friendliness
- Appointment wasn't rushed
- I didn't feel respected
- Didn't listen or answer questions
- Didn't trust the provider's decisions
- Long wait times
- Appointment scheduling
- Listened & answered questions
- Staff friendliness
- Appointment wasn't rushed
- I didn't feel respected
- Long wait times
- I felt respected
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- Office environment
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
- Office environment
- Appointment scheduling
- Listened & answered questions
- Explained conditions well
- Staff friendliness
- Appointment wasn't rushed
- Trusted the provider's decisions
- Wait times
Leave a review
How was your experience with Dr. Van Ummersen?Overall Patient Satisfaction
Likelihood of recommending Dr. Van Ummersen to family and friends is 4.6296296 out of 5
About Me
Watch Dr. Van Ummersen's Video
care philosophy
At Florida Cancer Specialists & Research Institute you will find experienced and compassionate doctors you can trust to treat your unique cancer. Our physicians share a passion for delivering exceptional and personalized care for all forms of cancer...read morebiography
Dr Van Ummersen received her Medical Degree from the University of Massachusetts Medical School, Worcester, MA. She served her medical internship there as well and completed her medical residency at the University of Maryland in Baltimore. She...read moreMedical Oncology
*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
University Of Maryland Medical System
Residency HospitalUniversity Of Massachusetts Chan Medical School
Internship HospitalUniversity Of Massachusetts Chan Medical School
Medical School
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.
Learn more about medical license public record checkFocus on Breast Cancer
Locations
Florida Cancer Specialists & Research Institute
Affiliated Hospitals
- Recipient of 7
hospital awardsView all awardsAmerica's 250 Best Hospitals Award™ (2025)
Top 5% in the nation for consistently delivering clinical quality
View all patient feedbackHow patients felt about the care they received at this hospital.
84%Patients said they were given information about recovering at home78%Patients said that nurses always listened to them and explained things well3% higher than the national average
- Recipient of 1
hospital awardView all awardsPatient Safety Excellence Award™ (2023)
Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications
View all patient feedbackHow patients felt about the care they received at this hospital.
85%Patients said they were given information about recovering at home1% higher than the national average
74%Patients said that doctors always listened to them and explained things well2% lower than the national average
Compare Providers
Providers shown based on Dr. Van Ummersen's location and specialty. Show more Oncologists.