American Pain Institute

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14 Manchester Sq Ste 290
Portsmouth, NH 03801
Welcome to American Pain Institute located in Portsmouth NH! Our doctors specialize in the treatment of chronic, intractable pain. At American Pain Institute, every patient is heard. Whether you are suffering from chronic back pain or a recent injury, you will be treated with dignity and respect throughout the process of assessment, diagnosis and treatment. American Pain Institute will provide you with the quality and accessible pain management care you deserve.

Reviews

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3.017 reviews
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Kathleen G.
8/22/2018

I have suffered with Trigeminal Nerve Pain brought on by MS for over 25 years of my life . The pain is debilitating. My journey for pain relief included many neurologist, gamma knife therapy and...

Scott S.
7/16/2025

totally useless, lied about procedure, caused more pain than i started with and after an injection went wrong he then threw his hands up and said "i cant help you, you'll need to go to boston to...

Timothy M.
4/19/2023

The first thing Dr. Greenspan said to me was "You seem like a nice guy Tim, I'd hate to have to roll over on you. So let's get that straight". Bullying 101 from the get go. Over my objections,...

Margie S.
2/28/2022

Dr. Greenspan treated me with steroid injections for my back and knee. I had explained to him my concern about Steroids hurting me more. He reassured me that it would bother anything and not be a...

Ann J.
4/12/2023

went to Dr Greenspan after Dr Lehn left ( I was not allowed to follow him) and after many months, after many unpleasant encounters, found a different provider. He was arrogant and snide, did not...

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