Nicholas Sirhan, CAA

Primary specialty

Anesthesiologist AssistantTaxonomy code 367H00000X

Practice address

19138 US Highway 281 N
San Antonio, TX 78258-4988

Phone

(210) 804-5400

NPI assigned

Mar 11, 2025

Sex

Male

Sole proprietor

No

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

Enrollment records 1

Specialty

Anesthesiology Assistant

Education

Other, 2025

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Austin Anesthesiology Group PLLCGroup PAC ID 0547256497, 430 clinicians

The San Antonio Orthopaedic Group LLPGroup PAC ID 6800798794, 143 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St David'S Medical Center Hospital, Austin, TX, CCN 450431
• St David'S South Austin Medical Center Hospital, Austin, TX, CCN 450713
• Round Rock Medical Center Hospital, Round Rock, TX, CCN 450718
• North Austin Medical Center Hospital, Austin, TX, CCN 450809

Medicare enrollment (NPD)

Enrolled

Credentials

Associate of Arts

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 and National Provider Directory roles.

• Austin Anesthesiology Group, PLLC

  • Anesthesiology Physician
  • Austin, TX
  • NPI 1598724304

  Anesthesiologist Assistant

  Medicare reassignment Care Compare group NPD
• The San Antonio Orthopaedic Group, LLP

  • Orthopaedic Surgery Physician
  • San Antonio, TX
  • NPI 1720022494
  Medicare reassignment Care Compare group NPD
• Austin Anesthesiology Group PLLC

  • Anesthesiology Physician
  • Bryan, TX
  • NPI 1528326154
  NPD
• The San Antonio Orthopaedic Group, LLP

  • Orthopedic Physical Therapist
  • San Antonio, TX
  • NPI 1770042152
  NPD

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

• St Davids Healthcare Partnership LP LLP

  • General Acute Care Hospital
  • Austin, TX
  • NPI 1629021845
  Care Compare affiliation
• St Davids Healthcare Partnership LP LLP

  • General Acute Care Hospital
  • Round Rock, TX
  • NPI 1649223645
  Care Compare affiliation
• St. David'S Healthcare Partnership, L.P., LLP

  • General Acute Care Hospital
  • Austin, TX
  • NPI 1679528889
  Care Compare affiliation
• St. Davids Healthcare Partnership, L.P., LLP

  • General Acute Care Hospital
  • Austin, TX
  • NPI 1720033947
  Care Compare affiliation

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

{
    "created_epoch": "1741651200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1741651200000",
    "number": "1881493005",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "13115 HUNTSMAN RD",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782494535",
            "telephone_number": "210-274-9114"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "19138 US HIGHWAY 281 N",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782584988",
            "telephone_number": "210-804-5400"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIRHAN",
        "first_name": "NICHOLAS",
        "credential": "CAA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-03-11",
        "last_updated": "2025-03-11",
        "certification_date": "2025-03-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367H00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiologist Assistant",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Caroline Marie Sipili, PA
• Kiersten Victoria Sippio
• Alan Siqueiros, M.D.
• Maria Elizabeth Siqueiros, SLP
• Allison Harrington Sirakos, M.D.
• Kenneth Sirinek, M.D.
• Deepika Sirohi, MD
• Kalin Nicole Siros, NP-C
• Elizabeth Sisk
• Sinjin Andrew Sison, LCSW

• Anesthesiologist Assistant in San Antonio, TX
• Providers in San Antonio, TX by specialty
• Anesthesiologist Assistant in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.