Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. John Williamson, MD

Individual provider Pain Medicine Physician · NPI 1922069186

Dr. John Williamson, MD is a Pain Management in Huntsville, Texas. Qualified in 1991, 35 years ago. Practices with Stephen M Sims MD PA, a 5-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
35
Licensed in
TX
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

133 Medical Park Ln Ste B
Huntsville, TX 77340-4979
Phone: (936) 730-8833
Fax: (936) 730-8866
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1901 Medi Park, Amarillo, TX 79106-2110 — (806) 353-4699
  • 1020 Riverwood Ct Ste 200, Conroe, TX 77304-2974 — (936) 756-3444

Specialties & licences

Pain Medicine Physician (primary) Taxonomy 208VP0000X · Licence J2414 (TX)

Record details

NPI number1922069186
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 29, 2006
Last updated in NPPESDecember 11, 2019
Certification dateDecember 11, 2019
Mailing address4400 Fm 1061, Amarillo, TX 79124-4716

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPAIN MANAGEMENT
Also practisesANESTHESIOLOGY
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Stephen M Sims Md Pa — 5 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Huntsville