NPIMap

Individual provider Active NPI

Karen Elaine Kamerzell, FNP-BC

  • Family Nurse Practitioner
  • Littleton, CO
National Provider Identifier
1003689621
Registry record updated Dec 29, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
0999261 Issued in CO
Practice address
1000 Southpark Dr
Littleton, CO 80120-5654
Phone
(303) 744-1065
Fax
(303) 733-1699
NPI assigned
Nov 6, 2023
Last updated
Dec 29, 2025By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Dec 29, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Nurse Practitioner 363LF0000X 0999261 CO Primary

Addresses

Primary practice location

1000 Southpark Dr
Littleton, CO 80120-5654

Mailing address

9351 S Johnson LN
Littleton, CO 80127-5912
Phone (303) 906-7429

Other practice location 1

7761 Shaffer Pkwy Ste 225
Littleton, CO 80127-3729
Phone (303) 862-1504

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20260106002999 CO Practitioner - Nurse Practitioner 0840786141 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2010
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices

Practice addresses (Care Compare)

1000 Southpark Dr
Littleton, CO 80120-5654
Phone (303) 744-1065

2525 S Downing St
Denver, CO 80210-5817

2535 D S Downing St
Suite 460
Denver, CO 80210-5817
Phone (303) 744-1065

2535 S Downing St
Denver, CO 80210-5850
Phone (303) 778-5797

7700 S Broadway
Littleton, CO 80122-2602
Phone (303) 730-8900

9395 Crown Crest Blvd
Parker, CO 80138-8573
Phone (303) 269-4975

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
0999261COMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Portercare Adventist Health System CurrentSince Jan 26, 2026 Accepting new patients
Portercare Adventist Health System CurrentSince Jan 26, 2026 Accepting new patients
Portercare Adventist Health System Single Specialty Past Accepting new patients

Locations

1000 Southpark Dr
Littleton, CO 80120
Phone (303) 715-2245

Networks

  • CO HMO
  • devoted network organization-a4751131-f16f-4e82-8f2b-b08e66379a7a
  • CO HMO D-SNP

Organizations & group practices 4

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.

Hospital & facility affiliations 10

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1699228800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766966400000",
    "number": "1003689621",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9351 S JOHNSON LN",
            "city": "LITTLETON",
            "state": "CO",
            "postal_code": "801275912",
            "telephone_number": "303-906-7429"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1000 SOUTHPARK DR",
            "city": "LITTLETON",
            "state": "CO",
            "postal_code": "801205654",
            "telephone_number": "303-744-1065",
            "fax_number": "303-733-1699"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "7761 Shaffer Pkwy Ste 225",
            "address_purpose": "LOCATION",
            "city": "Littleton",
            "state": "CO",
            "postal_code": "801273729",
            "country_code": "US",
            "telephone_number": "303-862-1504",
            "fax_number": "303-933-9431",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KAMERZELL",
        "first_name": "KAREN",
        "middle_name": "ELAINE",
        "name_prefix": "Mrs.",
        "credential": "FNP-BC",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2023-11-06",
        "last_updated": "2025-12-29",
        "certification_date": "2025-12-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "CO",
            "license": "0999261",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Littleton, CO

Sources for this page

Verify at the official NPI Registry.