Individual provider Active NPI

John W Williams, MD

  • Psychiatry Physician
  • Lafayette, CO
National Provider Identifier
1972943470
Registry record updated Sep 10, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatry PhysicianTaxonomy code 2084P0800X
License
DR.0066807 Issued in CO
Practice address
1455 Dixon Ave Ste 300
Lafayette, CO 80026-8880
Phone
(303) 443-8500
Fax
(303) 413-6325
NPI assigned
Jun 28, 2013
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 10, 2021

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Child & Adolescent Psychiatry Physician 2084P0804X DR.0066807 CO
Psychiatry Physician 2084P0800X DR.0066807 CO Primary

Addresses

Primary practice location

1455 Dixon Ave Ste 300
Lafayette, CO 80026-8880

Mailing address

1455 Dixon Ave Ste 300
Lafayette, CO 80026-8880
Phone (303) 443-8500

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CO
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20220203001496 CO Practitioner - Psychiatry 7719370352 Reassigns benefits to 1 organization

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
DR.0066807COMDChild & Adolescent Psychiatry Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Clinica Campesina Family Health Services CurrentSince Sep 11, 2025 Accepting new patients
Clinica Campesina Family Health Services CurrentSince Sep 11, 2025 Accepting new patients
Clinica Campesina Family Health Services Current Accepting new patients

Locations

1000 Alpine Ave
Boulder, CO 80304
Phone (303) 332-1250

975 North St
Boulder, CO 80304
Phone (303) 440-7941

3180 Airport Rd
Boulder, CO 80301
Phone (303) 378-6668

1735 S Public Rd
Lafayette, CO 80026
Phone 30366530361061

1455 Dixon Ave
Ste 300
Lafayette, CO 80026
Phone (303) 604-4244

1455 Dixon Ave
Lafayette, CO 80026
Phone (720) 406-3604

1735 S Public Rd
Ste 203
Lafayette, CO 80026

834 S Sherman St
Longmont, CO 80501
Phone (303) 247-8700

515 Coffman St
Longmont, CO 80501
Phone (303) 409-0132

Interoperability endpoints

  • Direct secure messaging: jwilliams31049@direct.kennedykrieger.org

Organizations & group practices 3

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1372377600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1631232000000",
    "number": "1972943470",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1455 DIXON AVE STE 300",
            "city": "LAFAYETTE",
            "state": "CO",
            "postal_code": "800268880",
            "telephone_number": "303-443-8500",
            "fax_number": "303-413-6325"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1455 DIXON AVE STE 300",
            "city": "LAFAYETTE",
            "state": "CO",
            "postal_code": "800268880",
            "telephone_number": "303-443-8500",
            "fax_number": "303-413-6325"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "JOHN",
        "middle_name": "W",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2013-06-28",
        "last_updated": "2021-09-10",
        "certification_date": "2021-09-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0804X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Child & Adolescent Psychiatry",
            "state": "CO",
            "license": "DR.0066807",
            "primary": false
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CO",
            "license": "DR.0066807",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Lafayette, CO

Sources for this page

Verify at the official NPI Registry.