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Department Ophthalmology
Primary Location Cleveland Clinic Main Campus
Type of Doctor Adults Only
Languages English
Surgeon Yes
Cleveland Clinic Main Campus
Primary Location

Cleveland Clinic Main Campus


Additional Locations

Specialties & Treatments

Treatment & Services

  • Epiretinal Membrane Surgery
  • Fluorescein Angiography
  • Intravitreal Injections for Retinal Disease
  • Laser for Diabetic Retinopathy
  • Lens-sparing Vitrectomy
  • Macular Degeneration Evaluations
  • Management of Age Related Macular Degeneration (AMD)
  • Medical and Surgical Treatment of Uveitis
  • Microincision Vitrectomy Surgery
  • Ophthalmology
  • Outpatient Consultation for Diseases of the Retina
  • Outpatient Eye Surgery
  • Pars Plana Vitrectomy
  • Retinal Laser Surgery
  • Scleral Buckle
  • Surgical and Medical Treatment of the Retina
  • Sutureless (Small Gauge) Retinal Surgery
  • Vitreoretinal Surgery
View all 18 Treatment & Services +

Specialty in Diseases & Conditions

  • Acquired Vitreoretinal Diseases
  • Age-Related Macular Degeneration
  • Cystoid Macular Edema
  • Diabetic Retinopathy
  • Diseases of the Vitreous
  • Endophthalmitis
  • Hla B27 Associated Uveitis
  • Infectious Diseases of the Retina
  • Intermediate Uveitis
  • Macular Hole
  • Macular Pucker
  • Panuveitis
  • Retinal Degenerations
  • Retinal Detachment
  • Retinal Diseases
  • Retinal Disorders
  • Retinal Hemangioma
  • Retinal Pigment Epithelium-Choroid Complex
  • Retinal Vein Occlusion
  • Retinitis
  • Sarcoidosis
  • Traumatic Retinal Detachment
  • Uveitis
  • Vitreous Detachment
  • Vitritis
View all 25 Specialties +


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Education & Professional Highlights

Education & Professional Highlights


Education & Fellowships

Fellowship - Cleveland Clinic
Vitreoretinal Surgery
Cleveland, OH USA

Residency - University of Minnesota
Minneapolis, MN USA

Internship - Oakwood Hospital and Medical Center
Dearborn, MI USA

Medical Education - Oakland University- William Beaumount Hospital
Royal Oak, MI USA

Undergraduate - Duke University
Durham, NC USA


  • Ophthalmology

Awards & Honors

  • Heed Fellowship Award, Heed Ophthalmic Foundation, 2021
  • Fellow Teacher of the Year, Cole Eye Institute, 2022
  • Fellow Research Award, Cole Eye Institute, 2022
  • American Uveitis Society Travel Grant Awardee, 2022
  • Vit-Buckle Society Travel Grant Awardee, 2022
  • American Society of Retina Specialists Fellow Grand Rounds Winner, 2021-2022
  • American Academy of Ophthalmology Best Original Paper, 2019
  • Polande Finke┬áChair Resident Award, University of Minnesota, 2019
  • Richard T. Olson Best Resident Teaching Award, University of Minnesota, 2019
  • Gail Summers Award, University of Minnesota, 2019
Research & Publications

Research & Publications

See publications for Danny Mammo, 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 10/3/2023, Dr. Mammo has reported the financial relationships with the companies listed below. 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.

Consulting and/or Speaking. Dr. Mammo receives fees of $5,000 or more per year (or, in rare cases, equity or stock options) as a paid consultant, speaker or as a member of an advisory committee for the following companies:

  • Alimera Sciences, Inc.

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

638 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 4.8
Courtesy, Respect & Concern 4.9
Patient Rating of Doctor 4.9

66 Patient Comments

Reviewed on Jan 11, 2024

Thrilled with random choice of Dr Mammo! So professional, kind and informative! Most thorough exam and solution to problems

Reviewed on Jan 11, 2024

So VERY happy with my choice of Dr Mammo! Extremely unhappy with "regular " eye Dr!

Reviewed on Jan 11, 2024


Reviewed on Jan 10, 2024

Dr. Mammo was great. Listen to me

Reviewed on Jan 8, 2024

Dr. Mammo is an awesome doc

Reviewed on Jan 3, 2024

Dr Mammo is outstanding! I have already recommended him to everyone I know who has any opthamologica problems.

Reviewed on Jan 3, 2024

Dr Mammo and his team were awesome! I was terrified of having eye surgery. Dr. Mammo took the time to reassure me. He has a very calm presence which was hugely helpful. I appreciate him and his team so much.

Reviewed on Dec 28, 2023

Dr. Mammo appears to take a genuine interest in his patient's care. He appeared genuinely happy when my results finally started improving from the injections. And he stated he was very optimistic about the progress to be expected going forward. I have found him to be honest when expressing concerns, and also sincere when expressing optimism. He also repeated Specific back to me a concern I had expressed in the previous month's appointment. I was impressed by his memory and recollection of that specific concern - and how he connected the progress made to the question//concern initially expressed.

Reviewed on Dec 27, 2023

Doctor and nurses assistant was very good

Reviewed on Dec 27, 2023

The doctor explained his concerns and provided information on upcoming tests for this year.

Reviewed on Dec 13, 2023

This is a stressful condition I have. Dr. Mammo makes it bearable. He is the best !

Reviewed on Dec 13, 2023

Dr. Mammo is so knowledgeable...he takes time to explain everything and made me feel very confident ...thank you .

Reviewed on Dec 6, 2023

First dealt with doctor Mammo as a fellow. Very caring compassionate doctor. Would recommend him to anyone

Reviewed on Dec 6, 2023

DR Mammo is courtious and very caring. I tell him every time I'mtherethat he is a good kind doctor.

Reviewed on Nov 29, 2023

Dr Mammo is #1

Reviewed on Nov 15, 2023

Love Dr Mammo. He has helped me gain back my sight in my left eye. Has a wonderful bedside manner. Even though this is not a fun procedure Dr Mammo has always made me feel comfortable and kept me at ease. A very good Doctor and I am extremely happy with the results.

Reviewed on Nov 15, 2023

What can I say they are the Best!! Dr Mammo is the best!! Thank you for doing a Great Job I would come back if I ever have eye trouble again !! YOUR THE BEST DR MAMMO

Reviewed on Nov 2, 2023

Excellent doctor! Has empathy and explains everything.

Reviewed on Oct 30, 2023

I was very impressed with my care at the Clinic. Dr. Mammo was so caring and nice. He explained everything about my condition.

Reviewed on Oct 18, 2023

I already HAVE recommended him to several friends. He is amazing!

Reviewed on Oct 18, 2023

The doctor was extremely helpful and knowledgeable

Reviewed on Oct 9, 2023

Dr.Mamo was very thorough and answered my questions.

Reviewed on Oct 4, 2023

This was the first time I have met Dr. Mammo. He was very polite and extremely knowledgeable about his field. He explained everything about Macular Degeneration to me. The best outcome was I did not have It. If I did, I would definitely see him.

Reviewed on Sep 28, 2023

Great Doctor Momma

Reviewed on Sep 27, 2023

Very good Dr.. Listened to my problem and answered all my questions. Very patient

Reviewed on Sep 27, 2023

Dr. Mammo is excellent and explains things thoroughly

Reviewed on Sep 20, 2023

Dr Mammo is one of the Best doctors I have ever seen. He is highly informative and EXCEPTIONALLY compassionate and comunicative. HE LISTENS! His easy-going personality brings nothing but confidence in his advice and explanations. A-1!

Reviewed on Sep 20, 2023

Excellent physician! Explains everything!

Reviewed on Sep 18, 2023

Dr.Danny Mammo is a very professional and caring person! He knew how to treat my eye problems! I am very satisfied with Dr, Mammo

Reviewed on Sep 18, 2023

Dr mammo and his team are very thorough!

Reviewed on Sep 11, 2023

I wanted to change my treatment due to side effects. Dr. Mammo was very understanding and we both made a new plan for me.

Reviewed on Sep 7, 2023

Very, very happy with visit with Dr Mammo!! He is young, informative and immediately tackle the problem satisfactorily! Very Impressed!!

Reviewed on Sep 7, 2023

After several attemptsTo identify eye problem, Dr Mammo was most thorough and confident in diagnosis

Reviewed on Sep 6, 2023

Dr. Mammo is very good at what he does. 100 %

Reviewed on Aug 29, 2023

Dr. Mammo agreed to see me during a time he usually does not schedule patients in order to fit the care standard (ideal time between appointments) and my travel schedule. Much appreciated!

Reviewed on Aug 23, 2023

Dr Mammo is an exceptional doctor

Reviewed on Aug 23, 2023

Dr mammo is the best doctor I have had along with Dr singh

Reviewed on Aug 23, 2023

I think Dr.Mammo and his staff are excellent

Reviewed on Aug 16, 2023

Dr Mammo is an excellent doctor. He provides excellent bed side manners.

Reviewed on Aug 14, 2023

Dr. Mammo is awesome. Professional and very knowledgable.

Reviewed on Aug 14, 2023

A very good experience with Dr. Mammo

Reviewed on Aug 9, 2023

Dr. Manno is always attentive & calm. He has a natural way of caring for peopl as human beings. Not a patient. .

Reviewed on Jul 26, 2023

I am referring to Dr. Danny Mammo. He is absolutely wonderful. An asset to Cleveland Clinic.

Reviewed on Jul 26, 2023

I would highly recommend Dr. Danny Mammo.

Reviewed on Jul 19, 2023

Dr Mammo is working hard with me to help reduce the symptoms of my retinal vein occlusion. I asked him to be more aggressive with treatment and he has done that. He also has kept me updated on new advances with this eye issue. I trust him with my eye care.

Reviewed on Jul 17, 2023

Dr Mammo is a hero!

Reviewed on Jul 17, 2023

A superb physician!

Reviewed on Jul 13, 2023

Dr. Mammo is the absolute best retina specialist I have ever had at the Cleveland Clinic. I have been getting eye injections for the last 13 1/2 years and have had many retina specialists. His gentle ease when giving me my injections in both eyes is very smooth. His numbing procedure is by far the best and most comfortable and I do not have any issues when recovering afterward. I truly hope he stays at the Cleveland Clinic for a very long time. I always dreaded my injections monthly, but he helps to make the procedure as comfortable, as possible.You better keep him!

Reviewed on Jul 6, 2023

Dr. Mammo was very thoughtful and answered all my questions about what I consider a very scary situation. I left feeling less afraid of my condition.

Reviewed on Jul 6, 2023

I've yet to meet any doctors or staff of the Cleveland Clinic who weren't kind and thoughtful. This visit has not changed my opinion.

Reviewed on Jun 28, 2023

Dr. Mammo ordered extra tests and came in and thoroughly explained the results of the test. He answered any questions I asked and told me to make an appointment to see him in 6 minutes months by told me that if I had any problems prior to the 6-month appointment that I should come in to see him. This was my first visit with Dr. Mammo And I so appreciated the thoroughness of his explanation of the tests.

Reviewed on Jun 24, 2023

Dr Danny Mammo is a WONDERFUL doctor. My husband and I were very grateful for his kindness and great care

Reviewed on Jun 19, 2023

Dr. Mammo and his assistants were exceptionally good and were very caring.

Reviewed on Jun 19, 2023

The doctor was very thorough explained everything in detail good experience

Reviewed on Jun 14, 2023

Dr. Mammo was excellent. He answered all questions clearly.

Reviewed on Jun 8, 2023

Dr Mammo gave me the biggest present I could wish for. He gave me the ability to see. He is very pleasant and knowledgeable

Reviewed on May 17, 2023

Dr Mammo is excellent! Explains everything thoroughly!

Reviewed on May 17, 2023

Dr Mammo has been very aggressive with my treatment as I asked him to be and I'm seeing better results. He is top notch and I am very happy with his care.

Reviewed on May 10, 2023

New doctor, very nice , explained my issues past and current what needed to be done . I was very impressed with him.

Reviewed on Apr 17, 2023

I was referred to ophthamology after an abnormal biopsy in Cincinnati. Dr. Mammo talked in circles, couldn't answer my questions, and didn't appear to have any interest in explaining. Not what I expected at all from CC. However, following that I saw a pulmonologist who was absolutely fantastic. I really like my rheumatologist too, and I'm very grateful to be under their care and guidance. Couldn't ask for better. But Dr. Mammonot so much.

Reviewed on Apr 10, 2023

Both the fellow and Dr. Momma were thorough and professional.

Reviewed on Mar 30, 2023

Dr. Manno is great! He explains what he is going to do during the visit, and is happy to answer any questions I may have.

Reviewed on Mar 13, 2023

The doctor was very informative about my past progress in the future treatments that would occur

Reviewed on Mar 11, 2023

Dr. Manno is a true professional in every aspect. He gave me immense confidence In his care and processes. He took great time to explain the road ahead of which I would experience and answer every question thoroughly.

Reviewed on Mar 8, 2023


Reviewed on Feb 13, 2023

I like Dr. Mammo very much. Great DR!

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