Individual provider Active NPI

Mary 'Molly' Mooney Trexler, APRN, CPNP-AC/PC

  • Critical Care Pediatric Nurse Practitioner
  • Austin, TX
National Provider Identifier
1053556290
Registry record updated Jan 8, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Critical Care Pediatric Nurse PractitionerTaxonomy code 363LP0222X
License
AP112642 Issued in TX
Practice address
4900 Mueller Blvd
Specialty Care Center
Austin, TX 78723-3079
Phone
(512) 324-9999
NPI assigned
Dec 2, 2008
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 8, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatric Nurse Practitioner 363LP0200X AP112642 TX
Critical Care Pediatric Nurse Practitioner 363LP0222X AP112642 TX Primary

Addresses

Primary practice location

4900 Mueller Blvd
Specialty Care Center
Austin, TX 78723-3079

Mailing address

4910 Mueller Blvd
Suite 102
Austin, TX 78723
Phone (512) 777-2917

Other names 1

  • Molly Mooney Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX
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
I20090406000597 TX Practitioner - Nurse Practitioner 8921155094 Reassigns benefits to 2 organizations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
AP112642TXMDCritical Care Pediatric Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Dell Children'S Medical Group CurrentSince May 8, 2017 Accepting new patients
Magella Medical Associates Billing, Inc. CurrentSince Aug 1, 2024 Accepting new patients
Dell Children'S Medical Group CurrentSince May 8, 2017 Accepting new patients
Pediatric Surgical Subspecialists Past Accepting new patients

Locations

1301 Barbara Jordan Blvd
Ste 307
Austin, TX 78723
Phone (512) 324-0907

4900 Mueller Blvd
Austin, TX 78723
Phone (512) 324-0165

4910 Mueller Blvd
Ste 102
Austin, TX 78723
Phone (512) 777-2917

1301 Barbara Jordan Blvd
Ste 300
Austin, TX 78723

1301 Barbara Jordan Blvd
Ste 200
Austin, TX 78723
Phone (512) 628-1800

1301 Medical Pkwy
Ste 320
Cedar Park, TX 78613
Phone (512) 260-7867

815 Market St
Galveston, TX 77550
Phone (409) 770-6600

4853 Williams Dr
Ste 105
Georgetown, TX 78633
Phone (512) 691-6505

11777 FM 1960 Rd W
Houston, TX 77065
Phone (832) 828-3501

1180 Seton Pkwy
Ste 250
Kyle, TX 78640
Phone (512) 777-2917

2700 W Pleasant Run Rd
Ste 220
Lancaster, TX 75146
Phone (888) 871-1883

10223 Broadway St
Ste E
Pearland, TX 77584
Phone (713) 340-2848

3901 W 15th St
Plano, TX 75075
Phone (972) 519-1115

1000 Hesters Crossing Rd
Round Rock, TX 78681
Phone (512) 628-1800

111 Dallas St
San Antonio, TX 78205
Phone (210) 297-7000

421 E State Highway 114
Southlake, TX 76092
Phone (817) 865-4400

6101 Woodway Dr
Ste 220
Woodway, TX 76712
Phone (512) 320-8388

Interoperability endpoints

  • Direct secure messaging: mary.trexlerpnp.p105@direct.mednax.nextgenshare.com

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 and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1228176000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767830400000",
    "number": "1053556290",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4910 MUELLER BLVD",
            "address_2": "SUITE 102",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "78723",
            "telephone_number": "512-777-2917"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4900 MUELLER BLVD",
            "address_2": "SPECIALTY CARE CENTER",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787233079",
            "telephone_number": "512-324-9999"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TREXLER",
        "first_name": "MARY 'MOLLY'",
        "middle_name": "MOONEY",
        "name_prefix": "Mrs.",
        "credential": "APRN, CPNP-AC/PC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2008-12-02",
        "last_updated": "2026-01-08",
        "certification_date": "2026-01-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Pediatrics",
            "state": "TX",
            "license": "AP112642",
            "primary": false
        },
        {
            "code": "363LP0222X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Pediatrics, Critical Care",
            "state": "TX",
            "license": "AP112642",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MOLLY",
            "last_name": "MOONEY",
            "credential": "RN, CPNP-AC/PC",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Austin, TX

Sources for this page

Verify at the official NPI Registry.