Individual provider Active NPI

Mary Elizabeth Mullin, FNP

  • Nurse Practitioner
  • Amarillo, TX
National Provider Identifier
1871592964
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nurse PractitionerTaxonomy code 363L00000X
License
526289 Issued in TX
Practice address
200 S Tyler St
Amarillo, TX 79101-1448
Phone
(806) 345-7917
Fax
(806) 345-7921
NPI assigned
Jul 20, 2005
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Nurse Practitioner 363L00000X 526289 TX Primary

Addresses

Primary practice location

200 S Tyler St
Amarillo, TX 79101-1448

Mailing address

2801 W 8TH St
Plainview, TX 79072-6737
Phone (806) 293-8561

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)
Enrolled

State licenses

LicenseStateTypeSpecialty
526289TXMDNurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Regence Health Network Inc Past Accepting new patients
Regence Health Network Inc Past Accepting new patients

Organizations & group practices 2

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": "1121817600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1871592964",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2801 W 8TH ST",
            "city": "PLAINVIEW",
            "state": "TX",
            "postal_code": "790726737",
            "telephone_number": "806-293-8561",
            "fax_number": "806-293-8413"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 S TYLER ST",
            "city": "AMARILLO",
            "state": "TX",
            "postal_code": "791011448",
            "telephone_number": "806-345-7917",
            "fax_number": "806-345-7921"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MULLIN",
        "first_name": "MARY",
        "middle_name": "ELIZABETH",
        "credential": "FNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-07-20",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "TX",
            "license": "526289",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Amarillo, TX

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.