Olga McMahan

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

1215352 Issued in TX

Practice address

230 Deer Ridge Dr
Round Rock, TX 78681-5515

Phone

(512) 766-1400

Fax

(512) 309-1342

NPI assigned

Oct 10, 2025

Last updated

May 13, 2026By the provider in NPPES

Sex

Unspecified or another gender identity

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

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

Specialty

Nurse Practitioner

Education

Other, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Round Rock Outpatient Care PLLCGroup PAC ID 7719407717, 7 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Brushy Creek Family Hospital LLC Hospital, Round Rock, TX, CCN 670326

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Round Rock Outpatient Care PLLC

  • Primary Care Nurse Practitioner
  • Cedar Park, TX
  • NPI 1891549366

  Psychiatric/Mental Health

  Medicare reassignment Care Compare group NPD
• Lake Travis ER, LLC

  • General Acute Care Hospital
  • Austin, TX
  • NPI 1215449954
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Brushy Creek Family Hospital, LLC

  • General Acute Care Hospital
  • Round Rock, TX
  • NPI 1588215461
  Care Compare affiliation

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

{
    "created_epoch": "1760054400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778630400000",
    "number": "1912872672",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "230 DEER RIDGE DR",
            "city": "ROUND ROCK",
            "state": "TX",
            "postal_code": "786815515",
            "telephone_number": "512-766-1400",
            "fax_number": "512-309-1342"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "230 DEER RIDGE DR",
            "city": "ROUND ROCK",
            "state": "TX",
            "postal_code": "786815515",
            "telephone_number": "512-766-1400",
            "fax_number": "512-309-1342"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCMAHAN",
        "first_name": "OLGA",
        "sole_proprietor": "YES",
        "sex": "X",
        "enumeration_date": "2025-10-10",
        "last_updated": "2026-05-13",
        "certification_date": "2026-05-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "TX",
            "license": "1215352",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Mia McKee
• Kelsey Kristine McKenna, IBCLC
• Heather Nicole McKeown, COTA
• Melanie Louise McKinley, PA-C
• Larry Ray McKinney, CRNA
• James N McMullen, P.A
• Rebecca McMurtry, AA-C
• Patrick William McNair, M.D.
• Meenal McNary, DDS
• Catherine Carter McNeese, MD

• Psychiatric/Mental Health Nurse Practitioner in Round Rock, TX
• Providers in Round Rock, TX by specialty
• Psychiatric/Mental Health Nurse Practitioner in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• 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.