Public provider listing

Brian Regan, DO

4.4(7)

Brian Regan, DO is a Pediatric gastroenterologist practice in Boston, MA. Rated 4.4 from 7 public reviews. Phone and website are listed.

Address

300 Longwood Ave, Boston, MA 02115
Boston, MA 02115

Public hours

Listed hours

As published
Monday
8AM–4:30PM
Tuesday
8AM–4:30PM
Wednesday
8AM–4:30PM
Thursday
8AM–4:30PM
Friday
8AM–4:30PM
Saturday
Closed
Sunday
Closed
Verified listing details

Credentials, affiliations, and coverage

Checked Aug 15, 2026

Sources

Federal data is attributed to its source and does not imply CMS endorsement.

Public media

Newest photos

Up to 10

No public photos are available for this listing.

Public reviews

Newest reviews

Up to 10

Kendra Peterson

1.0

Never will I return to Dr. Regan. I was referred to Dr. Regan for abdominal pain a few years back and over the course of multiple appointments, I had three scans done in which he did not suspect anything. I was misdiagnosed with a few different ailments and when the medications I was prescribed and the dairy free diet I was instructed to follow for my so-called "lactose intolerance" did not help, I was told that my pain was "all in my head" and he suggested I talk to a therapist. I am grateful I did not take that as my final answer because months later I was properly diagnosed by a DIFFERENT doctor and finally relieved of my chronic pain.

Corin Rizzo

5.0

No written review was provided.

Louise LUCZAI

5.0

Dr Regan is a compassionate , friendly , cheerful superb professional who oversaw my sons care for several years. My son and I appreciate all that he has done for us and are very grateful for the care he gave. Thank you Dr Regan!!

Yamilka Vazquez

5.0

No written review was provided.

jwalelover101

5.0

No written review was provided.

Andrea Desmarais

5.0

No written review was provided.

Li D

5.0

Dr. Regan is an outstanding Doctor. He goes above and beyond for his patients. My husband and I could not be more satisfied with the care he has given my son. He takes the time to answer all of your questions. He's exceptional.

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