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Dr. Derrick Marinelli, MD

Dr. Derrick Marinelli, MD

Urology*
35+ years of experience

Dr. Derrick Marinelli, MD is a urologist in Fullerton, CA and has over 35 years of experience in the medical field. Dr. Marinelli has extensive experience in Urinary Calculi & Removal. He graduated from Rosalind Franklin University Chicago Medical School in 1985. He is affiliated with Providence St. Jude Medical Center. He is accepting new patients and telehealth appointments.

4.1 Star Rating
Based on 34 reviews 4.1 Star Rating (34 reviews)

Marinelli & Feldman, MDs

1915 Sunny Crest Dr Fullerton, CA 92835
Telehealth available

Make an Appointment

Dr. Marinelli is a Healthgrades Choice provider in Urology

The Healthgrades Choice designation helps you understand the most important factors to consider when choosing a healthcare professional. This designation is earned based on four set standards.
Read our methodology

  • Above average experience
  • Good hospital quality
  • Good patient ratings
  • No healthcare sanctions
  • Area of Expertise
    Dr. Marinelli specializes in the area of Urology. 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
    America’s 50 Best Hospitals for Surgical Excellence Award™ See hospitals
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Dr. Marinelli's Reviews

Likelihood to recommend Dr. Marinelli

4.1
34 ratings, 10 with a written review
5 star
74%
74%
4 star
3%
3%
3 star
0%
0%
2 star
3%
3%
1 star
21%
21%

Your trust is our top concern.

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I recently saw Dr Marinelli for 6 month follow up. He is always very professional and takes time to talk to you with a kind bedside manner. He did my surgery in 2016 and has taken good care of me since.
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
1 other person found this helpful
Helpful
May 03, 2024
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What you need to hear, not …
what you want to hear. He has 30 plus years of experience with patients allowing him to evaluate uniqueness of patients, conditions and circumstances and causing him to avoid cookie cutter answers and or diagnoses. Early on Dr. Marinelli is practical, and is responsive to a better safe than sorry mindset. He will order multiple and varied tests that will allow for tracking progress of PSA. I want a Dr. who knows he’s not God but will do his best to study so he can give me the whole picture as he sees it. I don’t want anything sugar coated or punches pulled. If that’s where your head is, I’d highly recommend Derrick Marinelli!
What went well
  • I felt respected
  • 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
Phil – Mar 15, 2024
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Excellent Office
My grandma and my mom have both been patients of Dr. Marinelli. We always have an excellent experience with both Dr. Marinelli and the office staff. Dr. Marinelli is so kind and gentle with his patients. My Mom is very thankful for Dr. Marinelli.
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
Dec 27, 2023
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Very satisfied patient
Dr. Marinelli has been my urologist for the last 10 years and has shown excellent medical abilities and is very personal and caring. He has helped me through my battle with bladder cancer and I am grateful for him.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
What could be improved
No results
Helpful
Craig Powers – Nov 10, 2022
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Doctor & Staff
I've been a patient of Dr. Marinelli's for almost ten years. He was responsible for saving my life in 2014 from an aggressive form of kidney cancer. Since then, Dr. Marinelli has been my primary Urologist. I have recommended his services to both family and friends and to anyone who wants to be treated as a person and not just a number. His staff is courteous, informative, knowledgeable and friendly. If you want the best in the business to take exceptional care of your medical needs, look no further than Dr. Marinelli's Urology care in Fullerton.
What went well
  • Office environment
  • 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
1 other person found this helpful
Helpful
Donald H. Marshall – Nov 09, 2022
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Outstanding Physician
I recently visited Dr. Marinelli at his Fullerton, CA office for my annual check up. I have been a patient of this doctor for 30 years. During these years, Dr. Marinelli has provided me with outstanding care. He has treated me for a number of urology related issues over this time with positive outcomes in every situation. His level of knowledge, treatment competence, courtesy is beyond any expectation. He always spends quality time to explain every finding and future recommendation. Simply said, Dr. Marinelli has been a fantastic doctor for me and my family. I would strongly recommend him for all your urology issues.
What went well
  • Office environment
  • 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
jerry powell – Oct 06, 2022
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Great Doctor
Approximately 30 years ago, my family doctor recommended me to see Doctor Derrick Marinelli (Urologist) for an issue I had. Then, I telephoned Dr. Marinelli's office and set up an appointment. When I met Dr. Marinelli, I knew this was the doctor for me. His people skills are very kind and considerate. When I left his office I knew a great doctor/patient relationship was forming. Doctor Marinelli is an outstanding doctor. He carefully listens, asks questions, and he allows me to ask questions too, then he has a clear direction for me as a patient. I always looked forward to seeing him because he made me feel very comfortable. He is thorough, knowledgeable and conducts follow-ups. He keeps outstanding written notes, and is the most personable doctor I have ever met. The buck stops with Dr. Marinelli. He will take care of you professionally, as he did for me. I sincerely appreciate Dr. Marinelli for all he has done for me.
What went well
  • Office environment
  • 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
Ken Santolla – Jun 23, 2022
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Nice staff, great doctor. Very sympathetic to my problem and had many treatment options.
What went well
No results
What could be improved
No results
3 others found this helpful
Helpful
Mar 30, 2019
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Very knowledgeable. Operated on my teenage son with great results. Very caring. Would recommend highly.
What went well
  • Office environment
  • 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 others found this helpful
Helpful
Wendy in Anaheim, CA – Feb 23, 2016
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Great experience, very caring and patient. Very knowledgable, took time listen and explain things to me very well. I did not feel rushed at all.
What went well
  • Office environment
  • 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
6 others found this helpful
Helpful
Ann M. in Anaheim, CA – Jan 19, 2016
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Leave a review

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About Me

biography

Dr. Derrick Marinelli, MD is a urologist in Fullerton, CA and has over 35 years of experience in the medical field. Dr. Marinelli has extensive experience in Urinary Calculi & Removal. He graduated from Rosalind Franklin University Chicago Medical...read more
  • Urology

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

  • Rosalind Franklin University Chicago Medical School

    Medical School, 1985
American Board of Medical Specialties®
American Board of Urology®
Urology
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.
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  • Spanish

Dr. Marinelli is a Healthgrades Choice provider in Urology

    Read our methodology

    Online Care for Men's Health (Sponsored)

    Locations

    Marinelli & Feldman, MDs

    Marinelli & Feldman, MDs1915 Sunny Crest Dr Fullerton, CA 92835
    1

    Affiliated Hospitals

    • Providence St. Jude Medical Center

      101 E Valencia Mesa Dr
      Fullerton, CA 92835
      Recipient of 21
      hospital awards

      America’s 50 Best Hospitals for Surgical Excellence Award™ (2025, 2024)

      Top 5% in the nation for consistently delivering clinical quality

      America's 100 Best Hospitals Award™ (2023)

      Top 5% in the nation for consistently delivering clinical quality

      View all awards

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

      86%
      Patients said they were given information about recovering at home

      2% higher than the national average

      77%
      Patients who gave a rating of 9 or 10

      11% higher than the national average

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