Individual provider Active NPI

Sierra Mathos, IBCLC

  • Lactation Consultant (Non-RN)
  • Evergreen, CO
National Provider Identifier
1669337978
Registry record updated Dec 18, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Lactation Consultant (Non-RN)Taxonomy code 174N00000X
License
L-320167 Issued in CO
Practice address
8200 Crowfoot LN
Evergreen, CO 80439-4029
Phone
(785) 787-8240
NPI assigned
Dec 18, 2025
Last updated
Dec 18, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 18, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Lactation Consultant (Non-RN) 174N00000X L-320167 CO Primary

Addresses

Primary practice location

8200 Crowfoot LN
Evergreen, CO 80439-4029

Mailing address

8200 Crowfoot LN
Evergreen, CO 80439-4029
Phone (785) 787-8240

Other practice location 1

6356 S Newland Ct
Littleton, CO 80123-3862
Phone (785) 787-8240

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

State licenses

LicenseStateTypeSpecialty
L-320167COMDLactation Consultant (Non-RN)

Practice roles

OrganizationSpecialtyStatusNew patients
Clarks Condensed, LLC Lactation Consultant, Non-RN PastSince Oct 29, 2023 Accepting new patients

Organizations & group practices 1

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

NPI Registry JSON

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

{
    "created_epoch": "1766016000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766016000000",
    "number": "1669337978",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8200 CROWFOOT LN",
            "city": "EVERGREEN",
            "state": "CO",
            "postal_code": "804394029",
            "telephone_number": "785-787-8240"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8200 CROWFOOT LN",
            "city": "EVERGREEN",
            "state": "CO",
            "postal_code": "804394029",
            "telephone_number": "785-787-8240"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "6356 S Newland Ct",
            "address_purpose": "LOCATION",
            "city": "Littleton",
            "state": "CO",
            "postal_code": "801233862",
            "country_code": "US",
            "telephone_number": "785-787-8240",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MATHOS",
        "first_name": "SIERRA",
        "credential": "IBCLC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-12-18",
        "last_updated": "2025-12-18",
        "certification_date": "2025-12-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "174N00000X",
            "taxonomy_group": "",
            "desc": "Lactation Consultant, Non-RN",
            "state": "CO",
            "license": "L-320167",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Evergreen, CO

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 18, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.