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

Dr. John W Williams, MD

Individual provider Child & Adolescent Psychiatry Physician · NPI 1972943470

Dr. John W Williams, MD is a Child & Adolescent Psychiatry Physician in Lafayette, Colorado. Licensed in Colorado. Registered with an NPI since 2013.

Licensed in
CO
In the registry since
2013
Specialties on file
2
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

1455 Dixon Ave Ste 300
Lafayette, CO 80026-8880
Phone: (303) 443-8500
Fax: (303) 413-6325
Show map & directions

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

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence DR.0066807 (CO)
Child & Adolescent Psychiatry Physician Taxonomy 2084P0804X · Licence DR.0066807 (CO)

Record details

NPI number1972943470
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 28, 2013
Last updated in NPPESSeptember 10, 2021
Certification dateSeptember 10, 2021