Dr. Castillo is the leading pain management doctor in Phoenix, Arizona. He specializes in chronic back & neck pain, using innovative alternative treatments and therapies to help get his patients back to living their lives.

Image of Dr. Michael A. Castillo, pain management doctor.

About Dr. Michael A. Castillo

Dr. Michael A. Castillo, a pain management doctor, understands how pain affects not only you and your life, but your family and relationships. Dr. Castillo believes no two patients experience pain the same way — so he treats pain based individually to each person. Creating comprehensive treatment plans for each individual patient utilizing interventional procedures, as well as regenerative medicine therapies.

Dr. Castillo is the pain management doctor, doctors come to with their chronic pain.

Dr. Castillo helps patients who are living with microvascular and neuropathic pain syndromes, CRPS, arthritis, scoliosis, degenerative disc disease, back pain, failed back syndrome, all joint pains, sports injuries, migraines, TMJ, stroke, and concussion.

You will walk out of Dr. Castillo’s office knowing your unique health concerns were heard, and he as a plan to treat you the person, not just your pain symptoms – so you can get back to living your life.

Intrathecal Pain Pump Management link

Tried everything to manage your pain…

But nothing works?

Want off opioids?

An intrathecal pain pump may be the right treatment for you…

Manage your pain without the stress

– and live again!

Pain Management with an Intrathecal Pain Pump

Intrathecal pain pump delivery is a proven, safe, and effective therapy for managing chronic pain, and back and neck pain. Dr. Castillo is a leading national expert in pain pump therapy.

The intrathecal pain pump system consists of a pump and catheter surgically placed under the skin.

Unlike oral medications that circulate throughout your bloodstream, an intrathecal pain pump delivery system directly releases medication into the spinal cord, which may lead to fewer side effects.

Many people experience significant improvements in their pain symptoms and quality of life after receiving an intrathecal pain delivery system.

Intrathecal pain pump delivery cannot eliminate the source of your pain or cure any underlying disease, but it may help you better manage your pain – getting you back to what you love!

Interested in finding out whether Dr. Castillo’s intrathecal pain pump therapy is right for you

Top Pain Management Services Dr. Castillo Provides

Intrathecal Pain Pump

Intrathecal Pain Pump

Pain Pump Therapy can help patients better manage chronic pain and improve their quality of life. These pumps can help reduce the need for oral opioid medications.

Ozone Therapy

Ozone Therapy

Ozone Therapy can help the body more effectively fight cancer by increasing blood circulation, increasing the number of cancer fighting cells, and reducing the negative side effects of chemotherapy such as nausea and fatigue.

Platelet Rich Plasma Therapy

Platelet Rich Plasma Therapy

PRP Therapy can help boost the body’s natural healing capabilities right at the source of pain and injury.

Free for Military!

Dr. Castillo provides FREE Stellate Ganglion Blocks for PTSD to Military Members and Veterans.

Breaking Headaches - Dr. Castillo, a pain management doctor, has a quick in office treatment for fixing headaches. Call and get that headache blocked today so you can get back to your day!


When you arrive for your appointment please bring the following:

Patient Forms are here for downloading

  • MRI or CT Scan on CD
  • Medications in their bottles
  • ID & Insurance Cards
  • Co-payment

We accept cash and credit cards.

We are no longer accepting checks.

Dr. Castillo Office Hours

Monday thru Thursday from 6:30am – 4pm

Calls received Monday thru Thursday 6:30am – 4:30pm

and Friday 8am – 12:30pm

Phone: (602) 242-9891


We accept: United Healthcare,
Aetna, Banner, Blue Cross Blue Shield, Medicare, Medicaid, AHCCCS

For insurance and financial forms click here