Individual provider Active NPI

Anna Elizabeth Willis, PA-C

  • Physician Assistant
  • Centennial, CO
National Provider Identifier
1952652729
Registry record updated Jul 29, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
0003482 Issued in CO
Practice address
9110 E Nichols Ave Ste 150
Centennial, CO 80112-3450
Phone
(720) 666-4739
NPI assigned
Sep 19, 2012
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 29, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X 0003482 CO Primary

Addresses

Primary practice location

9110 E Nichols Ave Ste 150
Centennial, CO 80112-3450

Mailing address

6400 S Fiddlers Green Cir Ste 300
Greenwood Village, CO 80111-4955
Phone (888) 538-4185

Medicare participation

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

Care Compare profile

Medicare Care Compare

Merit-based Incentive Payment System (MIPS)

Final score
76.66 of 100Reported as group
Quality
70.05
Promoting interoperability
77
Improvement activities
40
Cost
71.32

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
0003482COMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Posterity Men'S Health, P.C. Past Accepting new patients

Interoperability endpoints

  • Direct secure messaging: annawillis@ua.allscriptsdirect.net

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": "1348012800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785283200000",
    "number": "1952652729",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6400 S FIDDLERS GREEN CIR STE 300",
            "city": "GREENWOOD VILLAGE",
            "state": "CO",
            "postal_code": "801114955",
            "telephone_number": "888-538-4185"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9110 E NICHOLS AVE STE 150",
            "city": "CENTENNIAL",
            "state": "CO",
            "postal_code": "801123450",
            "telephone_number": "720-666-4739"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIS",
        "first_name": "ANNA",
        "middle_name": "ELIZABETH",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2012-09-19",
        "last_updated": "2026-07-29",
        "certification_date": "2026-07-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CO",
            "license": "0003482",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Centennial, CO

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 29, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.