Individual provider Active NPI

David S Williford, CRNA

  • Certified Registered Nurse Anesthetist
  • Houston, TX
National Provider Identifier
1811218365
Registry record updated Aug 14, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
AP119097 Issued in TX
Practice address
6411 Fannin St
Houston, TX 77030-1501
Phone
(713) 500-6200
NPI assigned
Jun 18, 2010
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 14, 2023

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiology Physician 207L00000X AP119097 TX
Certified Registered Nurse Anesthetist 367500000X 697978 TX
Certified Registered Nurse Anesthetist 367500000X AP119097 TX Primary

Addresses

Primary practice location

6411 Fannin St
Houston, TX 77030-1501

Mailing address

PO Box 201088
Houston, TX 77216-1088
Phone (713) 500-3500

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20100818000669 TX Practitioner - Certified Registered Nurse Anesthetist (Crna) 7315071917 Reassigns benefits to 6 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2010
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Compass Anesthesia Providers, PLLCGroup PAC ID 4082040878, 164 clinicians
U S Anesthesia Partners of Texas, PAGroup PAC ID 7315850351, 2,750 clinicians
Ut PhysiciansGroup PAC ID 8426960360, 1,744 clinicians

Practice addresses (Care Compare)

2855 Gramercy St
Houston, TX 77025-1756
Phone (281) 348-0400

500 W Medical Ctr Blvd
Greater Houston Anesthesiology
Webster, TX 77598-4220
Phone (281) 332-2511

5656 Kelley St
Houston, TX 77026-1967
Phone (713) 566-4635

6410 Fannin St
Houston, TX 77030-3005

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
84.11 of 100Reported as group
Quality
69.15
Promoting interoperability
100
Improvement activities
40
Cost
73.63

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
AP119097TXMDAnesthesiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
U. S. Anesthesia Partners of Texas, P.a., Anesthesiology CurrentSince Jun 30, 2025 Accepting new patients
Compass Anesthesia Providers PLLC Anesthesiology CurrentSince Apr 15, 2025 Accepting new patients
Texans Anesthesia Associates PLLC Anesthesiology CurrentSince Feb 1, 2019 Accepting new patients
Endo Sedation LLC Anesthesiology CurrentSince Apr 11, 2019 Accepting new patients
U S Anesthesia Partners of Texas, PA Anesthesiology CurrentSince Jun 30, 2025 Accepting new patients
Ut Physicians Anesthesiology CurrentSince Mar 1, 2012 Accepting new patients
Endo Sedation LLC Anesthesiology Current Accepting new patients
Bahec LLC Anesthesiology CurrentSince Sep 28, 2011 Accepting new patients
Endo Sedation LLC Nurse Anesthetist, Certified Registered CurrentSince Apr 11, 2019 Accepting new patients
Ut Physicians CurrentSince Mar 1, 2012 Accepting new patients

Locations

4201 Garth Rd
Ste 212
Baytown, TX 77521
Phone (281) 420-9355

1001 Surrey Ln
Flower Mound, TX 75022
Phone (817) 337-3671

7600 Beechnut St
Houston, TX 77074
Phone (713) 456-5000

6411 Fannin St
Houston, TX 77030
Phone (713) 500-6200

1635 North Loop W
Houston, TX 77008
Phone (713) 867-2066

6410 Fannin St
Ste 500
Houston, TX 77030
Phone (713) 500-5714

2855 Gramercy St
Ste 100
Houston, TX 77025
Phone (713) 529-8603

6410 Fannin St
Ste 470
Houston, TX 77030
Phone (713) 500-3561

2855 Gramercy St
Houston, TX 77025
Phone (713) 668-1828

5550 Kelley St
Fl 3
Houston, TX 77026
Phone (713) 566-4768

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

1211 Highway 6
Ste 70
Sugar Land, TX 77478
Phone (281) 238-3902

1211 Highway 6
Sugar Land, TX 77478
Phone (281) 238-3900

6801 Emmett F Lowry Expy
Texas City, TX 77591
Phone (409) 938-5095

1015 W Medical Center Blvd
Ste 1500
Webster, TX 77598
Phone (281) 557-3223

333 N Texas Ave
Ste 1000
Webster, TX 77598
Phone (281) 557-5620

1015 W Medical Center Blvd
Ste 1200
Webster, TX 77598
Phone (281) 554-3494

500 W Medical Center Blvd
Webster, TX 77598
Phone (713) 447-4650

Organizations & group practices 10

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.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1276819200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1691971200000",
    "number": "1811218365",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 201088",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "772161088",
            "telephone_number": "713-500-3500",
            "fax_number": "713-500-8630"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6411 FANNIN ST",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770301501",
            "telephone_number": "713-500-6200"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIFORD",
        "first_name": "DAVID",
        "middle_name": "S",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2010-06-18",
        "last_updated": "2023-08-14",
        "certification_date": "2023-08-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "TX",
            "license": "AP119097",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "TX",
            "license": "697978",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "TX",
            "license": "AP119097",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Houston, TX

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 14, 2023; 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.