Pain Management Treatment in Portsmouth, NH

When pain has lingered for months and nothing seems to help, you need more than another prescription. You need a doctor who finds the source and treats it directly. At American Pain Institute,
Dr. Greenspan offers a full range of non-surgical, interventional pain management treatments designed to give you lasting relief, not just a temporary patch.

Every plan is built around one patient: you. We review your records and imaging, pinpoint what is actually driving your pain, and recommend the treatment most likely to work for your condition and your life. Below is an overview of the pain management services we provide here in Portsmouth.

Joint Injections

Arthritis, bursitis, and worn cartilage can turn a simple movement into a daily struggle. Joint injections deliver anti-inflammatory medication straight into the affected knee, hip, shoulder, or other joint, calming inflammation right where it starts.

Many patients notice their pain ease within days, making it easier to move, exercise, and sleep. Dr. Greenspan always uses fluoroscopic or X-ray guidance to guarantee that each injection is performed at the correct location, ensuring the patient gets the best result.

Spinal Injections for Back and Neck Pain

Chronic back pain, neck pain, and sciatica often trace back to inflamed nerves or irritated discs along the spine. Spinal injections, including epidural steroid injections and facet joint injections, target that inflammation at its source.

These treatments can relieve the radiating pain that travels down your arm or leg, and they often help patients put off or avoid surgery altogether. We use image guidance to reach the exact spot causing your symptoms.

Radiofrequency Ablation

When pain keeps returning to the same nerves, radiofrequency ablation offers longer-lasting relief. Using gentle heat from radio waves, this procedure quiets the specific nerves sending pain signals to your brain.

It is a common choice for ongoing neck and lower back pain, especially arthritis-related joint pain in the spine. Relief can last many months, and the treatment can be repeated when needed.

Spinal Cord Stimulator Trial

For pain that has not responded to injections, medication, or surgery, a spinal cord stimulator can be life-changing. A small device delivers mild electrical signals that interrupt pain before it reaches your brain.

The best part is you get to test it first. During a trial period, you experience the relief yourself before committing to anything permanent. It is a low-risk way to find out whether this approach is right for you.

Regenerative Medicine

Some patients want an option that works with the body's own ability to heal. Our regenerative medicine treatments support natural repair in damaged joints and tissue, offering an alternative for people who prefer to avoid surgery.

These therapies are typically not covered by insurance, so we keep our cash prices as low as possible. Learn more on our regenerative medicine page.

Conditions We Treat

Dr. Greenspan treats a wide range of chronic and acute pain conditions, including:

• Chronic back pain, neck pain, and spinal stenosis
• Sciatica, nerve damage, and neuropathic pain
• Joint pain, arthritis, and herniated discs
• Headaches and migraines
• Fibromyalgia and cancer-related pain
• Complex regional pain syndrome and neuralgia

How to Become a Patient

American Pain Institute is a referral-only practice. Getting started takes two simple steps:

1. Ask your primary care or treating provider for a referral. We require one for every patient, even if your insurance does not.
2. Send records related to your pain condition along with any imaging, such as an MRI or X-ray.

Once we review your referral and records, most patients are scheduled within two weeks. Urgent appointments are accommodated based on availability. Ready to begin?

Monday–Thursday: 7:30am – 4:00pm
Friday–Sunday: Closed

Referral required to become a patient.
Most patients seen within two weeks.