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
Mailing address1455 Dixon Ave Ste 300, Lafayette, CO 80026-8880