Mary Jo Allen

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

F03250549 Issued in TX

Practice address

409 W Liberty Ave
Round Rock, TX 78664-5127

Phone

(512) 524-3437

Fax

(512) 524-3437

NPI assigned

Apr 19, 2025

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

Practice roles

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.

• Happy Health and Wellness of America PA LLC

  • Family Medicine Physician
  • Waco, TX
  • NPI 1770344889
  NPD (past)

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

{
    "created_epoch": "1745020800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772755200000",
    "number": "1679369169",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "409 W LIBERTY AVE",
            "city": "ROUND ROCK",
            "state": "TX",
            "postal_code": "786645127",
            "telephone_number": "512-524-3437",
            "fax_number": "512-524-3437"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "409 W LIBERTY AVE",
            "city": "ROUND ROCK",
            "state": "TX",
            "postal_code": "786645127",
            "telephone_number": "512-524-3437",
            "fax_number": "512-524-3437"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ALLEN",
        "first_name": "MARY JO",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2025-04-19",
        "last_updated": "2026-03-06",
        "certification_date": "2026-03-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "TX",
            "license": "F03250549",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sarah Ali, MD
• All Seasons Dentistry PLLC
• All Spines Chiropractic LLC
• Allegiant Lab to Carolina Diagnostic Labs
• Davonte Allen
• Maryann Allen, OT
• Allergy and Asthma Clinic of Central Texas, PA
• Allheart Care Companionship LLC
• Alliance Counseling Works, LLP
• Allied Physical Medicine, PA

• Nurse Practitioner in Round Rock, TX
• Providers in Round Rock, TX by specialty
• Nurse Practitioner in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 6, 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.