Highlights
Age Groups Seen
- Adults
- Geriatrics
Languages
- Spanish
- English
Gender
MaleAbout Andrew S Allegretti
Andrew Allegretti, MD MSc is Director of Critical Care Nephrology in the Division of Nephrology at Massachusetts General Hospital and Associate Professor of Medicine at Harvard Medical School. He received his undergraduate and medical degree from Brown University and has a Master of Science in Epidemiology from the Harvard School of Public Health. He completed residency training in Internal Medicine at MGH, followed by subspecialty training in Nephrology in the Brigham and Women's Hospital/Massachusetts General Hospital joint fellowship. He takes care of all patients with acute and chronic kidney disease. He has a clinical focus on kidney care in patients with liver disease.
Locations
- Massachusetts General Renal Associates
- 165 Cambridge Street, Suite 302, Boston, MA 02114
- Get Directions
- phone: 617-726-5050
- fax: 617-724-1122
Expertise
Education
- Fellowship: Brigham and Women's Hospital, Nephrology, 2016
- Residency: Massachusetts General Hospital, Internal Medicine, 2013
- Medical Education: Warren Alpert Medical School of Medicine at Brown University, 2010
Board Certifications
- Internal Medicine: American Board of Internal Medicine, 2015
Insurance
- Aetna
- Beech Street
- Blue Cross Blue Shield
- Blue Cross Blue Shield - Indemnity
- Blue Cross Blue Shield Medicare
- Cigna
- Commonwealth Care Alliance
- Coventry
- Fallon Health
- Harvard Pilgrim Health Care
- Humana
- Mass General Brigham Health Plan
- MassHealth
- Medicaid ME
- Medicaid NH
- Medicaid NY
- Medicaid RI
- Medicaid VT
- Medicare
- Multiplan
- Railroad Medicare
- Senior Whole Health
- TriCare
- Tufts Health Plan
- Tufts Medicare Preferred
- United Health Care
- Wellpoint
- WellSense
- WellSense NH
Ratings & Reviews
4.9 out of 5
62 ratings, 28 reviewsThe Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
- Reviewed on 3/23/2026
Excellent doctor explained everything to me
- Reviewed on 3/15/2026
Dr Allegretti is very thorough and explains everything in a way that is easy to comprehend. He is very pleasant and personable.
- Reviewed on 3/3/2026
This was the 1st conversation with Dr. Allegretti which has to be by phone due to blizzard conditions. Even though, he was very thorough. We have a June follow up. In the interim, Dr. Allegretti is providing other informational meetings prior to June
- Reviewed on 2/23/2026
Dr Allegretti has aways gone over every aspect of my health issues...making sure my medications and tests are up to date to insure the continued health on my kidneys. Always listening with great patience and interest and answering all my concerns x 10!
- Reviewed on 2/17/2026
Excellent
- Reviewed on 2/16/2026
I see this particular provider because he is a leading specialist dealing with my condition. He consults with my PCP as he monitors my renal health. I find him to be personable with great empathy. Smart. Very smart physician who is very accessible. I very much like his dialogic style,respectful of who I am. He has an uncanny ability to quickly dial in to the patient.
- Reviewed on 2/15/2026
Dr.Allegretti was right on time for .the appointment and had all my labs and information in hand. He explained my situation and options clearly and recommended my treatments going forward.
- Reviewed on 2/14/2026
Excellent communications with doctors and nurses.
- Reviewed on 1/19/2026
Dr. Allegretti is a gem. He is kind, compassionate and never rushes you or the appointment. He truly listens to you.
- Reviewed on 1/18/2026
DR Allegretti is an outstanding physician and I most fortunate to have him on my medical team. Respectfully [redacted]
- Reviewed on 12/16/2025
Based on my experience with the doctor, he explained everything very well, left me very satisfied, and above all, explained it in my language, which made me feel much better Spanish. He is an excellent doctor, and I highly recommend him to anyone who needs him.
- Reviewed on 12/7/2025
Fantastic doctor!
- Reviewed on 12/7/2025
I am very lucky to have Dr Allegretti as my doctor!!!!!
- Reviewed on 12/3/2025
He was friendly & personable. He made everything easy to understand, and answered our questions thoroughly.
- Reviewed on 11/23/2025
I have a 30 year relationship and am so lucky to have Dr Allegretti taking care of me
- Reviewed on 11/20/2025
One of my best experiences, in dealing with multiple healthcare issues over the past two years, has been my appointment with Dr. Allegretti. I'm so grateful for the respect, kindness, knowledge and clarity he provided in our interaction.
- Reviewed on 11/9/2025
Best care in the world
- Reviewed on 10/19/2025
Very thorough, informative and very personable
- Reviewed on 10/19/2025
I have been seeing Dr Allegretti for about 5 years and he has always been prepared for our visits. He is very kind and knowledgeable about my health issues.
- Reviewed on 10/13/2025
Allegretti is the best! He listens and genuinely cares.
- Reviewed on 7/20/2025
First time at this office and everyone was great, friendly. Parking is free which is rare and a great thing.
- Reviewed on 7/7/2025
She is terrific. I'm a [redacted] year patient
- Reviewed on 6/15/2025
Dr. Allegretti explained my level of chronic kidney disease and the path forward to control it for the best outcome.
- Reviewed on 6/8/2025
The Dr is excellent
- Reviewed on 6/7/2025
This doctor and all doctors that I have appointments with at the Mass General are the very best as I'm as as far as I'm concerned every single one of them thank you.
- Reviewed on 6/5/2025
Very fortunate to have Dr Allegretti as my nephrologist. He's awesome.
- Reviewed on 6/5/2025
Very informative and helpful. Always gives me productive advice.
- Reviewed on 5/19/2025
This provider is absolutely the best. I'm so happy to have him for my care