Individual provider Active NPI

Alexa Katharine Koenig, CRNA

  • Certified Registered Nurse Anesthetist
  • San Antonio, TX
National Provider Identifier
1609432384
Registry record updated Aug 7, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
AP142667 Issued in TX
Practice address
4502 Medical Dr
San Antonio, TX 78229-4402
Phone
(210) 567-4500
Fax
(210) 567-0083
NPI assigned
May 17, 2019
Last updated
Aug 7, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 7, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X AP142667 TX Primary

Addresses

Primary practice location

4502 Medical Dr
San Antonio, TX 78229-4402

Mailing address

4502 Medical Dr
San Antonio, TX 78229-4402
Phone (210) 567-4500

Other practice location 1

903 W Martin St # MS 49-2
San Antonio, TX 78207-0903
Phone (210) 358-3400

Other practice location 2

4502 Medical Dr
San Antonio, TX 78229-4402
Phone (210) 358-4000

Other practice location 3

215 N San Saba Ste 206
San Antonio, TX 78207-3120
Phone (210) 615-6626

Other practice location 4

8300 Floyd Curl Dr
San Antonio, TX 78229-3931
Phone (210) 450-9000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20210709001424 TX Practitioner - Certified Registered Nurse Anesthetist (Crna) 6507268752 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Community Medicine AssociatesGroup PAC ID 7719979509, 590 clinicians

Practice addresses (Care Compare)

4502 Medical Dr
San Antonio, TX 78229-4402
Phone (210) 358-4000

Merit-based Incentive Payment System (MIPS)

Final score
96.65 of 100Reported as group
Quality
83.62
Promoting interoperability
100
Improvement activities
40
Cost
78.03

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Certified Registered Nurse

State licenses

LicenseStateTypeSpecialty
AP142667TXMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
U S Anesthesia Partners of Texas, PA Nurse Anesthetist, Certified Registered CurrentSince Jun 30, 2021 Accepting new patients
Community Medicine Associates CurrentSince Jul 17, 2023 Accepting new patients
The University of Texas Health Science Center at San Antonio CurrentSince Jul 17, 2023 Accepting new patients
Emergenchealth PLLC Nurse Anesthetist, Certified Registered CurrentSince Apr 10, 2023 Accepting new patients
U. S. Anesthesia Partners of Texas, P.a., Nurse Anesthetist, Certified Registered CurrentSince Jun 30, 2021 Accepting new patients
University of Texas Health Science Center at San Antonio CurrentSince Jul 17, 2023 Accepting new patients

Locations

100 Medical Dr
Lake Jackson, TX 77566
Phone (713) 496-7555

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

11212 State Highway 151
San Antonio, TX 78251
Phone (210) 281-5066

4502 Medical Dr
San Antonio, TX 78229
Phone (210) 358-3555

7400 Barlite Blvd
San Antonio, TX 78224
Phone (210) 921-2000

7703 Floyd Curl Dr
San Antonio, TX 78229
Phone (210) 450-3700

903 W Martin St
#492
San Antonio, TX 78207
Phone (210) 358-3441

1301 Wonder World Dr
San Marcos, TX 78666
Phone (512) 353-8979

9250 Pinecroft Dr
Shenandoah, TX 77380
Phone (281) 364-2300

Organizations & group practices 6

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.

NPI Registry JSON

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

{
    "created_epoch": "1558051200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786060800000",
    "number": "1609432384",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4502 MEDICAL DR",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782294402",
            "telephone_number": "210-567-4500",
            "fax_number": "210-567-0083"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4502 MEDICAL DR",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782294402",
            "telephone_number": "210-567-4500",
            "fax_number": "210-567-0083"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "903 W Martin St # MS 49-2",
            "address_purpose": "LOCATION",
            "city": "San Antonio",
            "state": "TX",
            "postal_code": "782070903",
            "country_code": "US",
            "telephone_number": "210-358-3400",
            "fax_number": "210-702-6953",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4502 Medical Dr",
            "address_purpose": "LOCATION",
            "city": "San Antonio",
            "state": "TX",
            "postal_code": "782294402",
            "country_code": "US",
            "telephone_number": "210-358-4000",
            "fax_number": "210-358-4775",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "215 N San Saba Ste 206",
            "address_purpose": "LOCATION",
            "city": "San Antonio",
            "state": "TX",
            "postal_code": "782073120",
            "country_code": "US",
            "telephone_number": "210-615-6626",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "8300 Floyd Curl Dr",
            "address_purpose": "LOCATION",
            "city": "San Antonio",
            "state": "TX",
            "postal_code": "782293931",
            "country_code": "US",
            "telephone_number": "210-450-9000",
            "fax_number": "210-644-9307",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KOENIG",
        "first_name": "ALEXA",
        "middle_name": "KATHARINE",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-05-17",
        "last_updated": "2026-08-07",
        "certification_date": "2026-08-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "TX",
            "license": "AP142667",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Antonio, TX

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 7, 2026; 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.