John Williamson, MD

Pain Management · Stephen M Sims Md PA

Pain ManagementHigh data-match confidence

Directory record — please verify

This listing comes from CMS Medicare Doctors and Clinicians data and was updated August 2, 2026. It does not confirm Medicare coverage, plan network, referral or prior authorization, offered services, or current availability. Verify each item directly before scheduling.

At a glance

John Williamson, MD is listed as a Pain Management in Huntsville, TX. Call 9367308833 to confirm current participation and availability.

Services & care categories

Pain Management Accepts Medicare assignment

Medicare questions to ask

1Do you currently accept Medicare assignment for these services?
2Is this location in-network for my Medicare Advantage plan?
3Will I need a referral or prior authorization before my visit?
4What out-of-pocket costs should I expect under Medicare?
5Do you provide the specific care I need (pain management, PM&R, behavioral health, or mild TBI)?

Location

Frequently asked questions

Does John Williamson, MD accept Medicare?

John Williamson, MD is an imported senior-care record. Confirm Medicare participation and network status directly with the facility before scheduling.

Where is John Williamson, MD located?

John Williamson, MD is located at 133 Medical Park Ln, Suite B, Huntsville, TX 77340.

What is the phone number for John Williamson, MD?

You can reach John Williamson, MD at 9367308833.

What care does John Williamson, MD offer?

Listed services include Pain Management, Accepts Medicare assignment. Verify availability with the facility.

Source

CMS Medicare Doctors and Clinicians data.

How directory records are sourced and updated

Medicare questions to ask

1Do you currently accept Medicare assignment for these services?
2Is this location in-network for my Medicare Advantage plan?
3Will I need a referral or prior authorization before my visit?
4What out-of-pocket costs should I expect under Medicare?
5Do you provide the specific care I need (pain management, PM&R, behavioral health, or mild TBI)?

Location

Frequently asked questions

Does John Williamson, MD accept Medicare?

John Williamson, MD is an imported senior-care record. Confirm Medicare participation and network status directly with the facility before scheduling.

Where is John Williamson, MD located?

John Williamson, MD is located at 133 Medical Park Ln, Suite B, Huntsville, TX 77340.

What is the phone number for John Williamson, MD?

You can reach John Williamson, MD at 9367308833.

What care does John Williamson, MD offer?

Listed services include Pain Management, Accepts Medicare assignment. Verify availability with the facility.