Individual provider Active NPI

Allison Caitlin Corzatt, NP

  • Family Nurse Practitioner
  • Littleton, CO
National Provider Identifier
1992309777
Registry record updated Sep 16, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
0996067 Issued in CO
Practice address
7335 S Pierce St Ste 100
Littleton, CO 80128-4568
Phone
(303) 979-7200
Fax
(303) 933-5265
NPI assigned
Nov 23, 2020
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 16, 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 0996067 CO Primary

Addresses

Primary practice location

7335 S Pierce St Ste 100
Littleton, CO 80128-4568

Mailing address

1805 Shea Center Dr Ste 450
Highlands Ranch, CO 80129-2255
Phone (303) 357-2559

Other practice location 1

6179 S Balsam Way
Littleton, CO 80123-3091
Phone (303) 948-1570

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: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20201221002574 CO Practitioner - Nurse Practitioner 3870905599 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Onpoint Medical Group LLCGroup PAC ID 0143598458, 93 clinicians

Practice addresses (Care Compare)

7335 S Pierce St
Columbine Family Practice
Littleton, CO 80128-4571
Phone (303) 979-7200

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
0996067COMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Onpoint Medical Group, LLC Family Medicine CurrentSince Oct 24, 2022 Accepting new patients
Colorado Physician Partners, PLLC Family Medicine CurrentSince Dec 10, 2020 Accepting new patients
Colorado Physician Partners, PLLC Family Medicine CurrentSince Dec 10, 2020 Accepting new patients
Onpoint Medical Group, LLC Family Medicine CurrentSince Oct 24, 2022 Accepting new patients
Pahs Onpoint Urgent Care LLC Current Accepting new patients
Onpoint Medical Group, LLC Family Medicine PastSince Sep 21, 2025 Accepting new patients
Onpoint Medical Group, LLC Family Medicine PastSince Sep 21, 2025 Accepting new patients

Locations

1805 Shea Center Dr
Ste 450
Highlands Ranch, CO 80129

1805 Shea Center Dr
Ste 301
Highlands Ranch, CO 80129
Phone (303) 357-2559

205 S Garrison St
Ste A
Lakewood, CO 80226
Phone (720) 728-5170

205 S Garrison St
Lakewood, CO 80226
Phone (303) 237-2779

6179 S Balsam Way
Ste 110
Littleton, CO 80123
Phone (303) 933-8220

6169 S Balsam Way
Ste 190
Littleton, CO 80123
Phone (303) 933-8240

7335 S Pierce St
Ste 100
Littleton, CO 80128
Phone (303) 979-7200

7335 S Pierce St
Littleton, CO 80128
Phone (303) 932-1919

Interoperability endpoints

  • Direct secure messaging: allison.corzatt.1@9821.direct.athenahealth.com

Organizations & group practices 7

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": "1606089600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757980800000",
    "number": "1992309777",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1805 SHEA CENTER DR STE 450",
            "city": "HIGHLANDS RANCH",
            "state": "CO",
            "postal_code": "801292255",
            "telephone_number": "303-357-2559",
            "fax_number": "303-933-5265"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7335 S PIERCE ST STE 100",
            "city": "LITTLETON",
            "state": "CO",
            "postal_code": "801284568",
            "telephone_number": "303-979-7200",
            "fax_number": "303-933-5265"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "6179 S Balsam Way",
            "address_purpose": "LOCATION",
            "city": "Littleton",
            "state": "CO",
            "postal_code": "801233091",
            "country_code": "US",
            "telephone_number": "303-948-1570",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CORZATT",
        "first_name": "ALLISON",
        "middle_name": "CAITLIN",
        "name_prefix": "Ms.",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-11-23",
        "last_updated": "2025-09-16",
        "certification_date": "2025-09-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "CO",
            "license": "0996067",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Littleton, CO

Sources for this page

Verify at the official NPI Registry.