Individual provider Active NPI

Lianne Mercer, RN, IBCLC

  • Lactation Consultant (Registered Nurse)
  • Longmont, CO
National Provider Identifier
1205382736
Registry record updated Mar 3, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Lactation Consultant (Registered Nurse)Taxonomy code 163WL0100X
License
L-303515 Issued in CO
Practice address
4313 Lucca Dr
Longmont, CO 80503-4175
Phone
(720) 273-8176
NPI assigned
Aug 25, 2016
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Mar 3, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Lactation Consultant (Registered Nurse) 163WL0100X L-303515 CO Primary
Registered Nurse 163W00000X RN.0189451 CO

Addresses

Primary practice location

4313 Lucca Dr
Longmont, CO 80503-4175

Mailing address

4313 Lucca Dr
Longmont, CO 80503-4175
Phone (720) 273-8176

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
Credentials
Registered Nurse

State licenses

LicenseStateTypeSpecialty
RN.0189451COMDRegistered Nurse
L-303515COMDLactation Consultant (Registered Nurse)

Practice roles

OrganizationSpecialtyStatusNew patients
El Paso County Public Health Past 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 and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1472083200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772496000000",
    "number": "1205382736",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4313 LUCCA DR",
            "city": "LONGMONT",
            "state": "CO",
            "postal_code": "805034175",
            "telephone_number": "720-273-8176"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4313 LUCCA DR",
            "city": "LONGMONT",
            "state": "CO",
            "postal_code": "805034175",
            "telephone_number": "720-273-8176"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MERCER",
        "first_name": "LIANNE",
        "credential": "RN, IBCLC",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2016-08-25",
        "last_updated": "2026-03-03",
        "certification_date": "2026-03-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WL0100X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Lactation Consultant",
            "state": "CO",
            "license": "L-303515",
            "primary": true
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "CO",
            "license": "RN.0189451",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Longmont, CO

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 3, 2026; 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.