Individual provider Active NPI

Leonard Lionel Clark, CRNA

  • Certified Registered Nurse Anesthetist
  • Sherman, TX
National Provider Identifier
1285794768
Registry record updated Jun 5, 2018
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
562123 Issued in TX
Practice address
1801 San Juan Dr
Sherman, TX 75092
Phone
(903) 892-3012
NPI assigned
Dec 12, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 5, 2018

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X 78396 OK
Certified Registered Nurse Anesthetist 367500000X 562123 TX Primary

Addresses

Primary practice location

1801 San Juan Dr
Sherman, TX 75092

Mailing address

PO Box 840853
Dallas, TX 75284-0853
Phone (972) 233-1999

Other identifiers 1

IdentifierTypeStateIssuer
045542OtherAANA CERTIFICATION

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20110901000282 TX Practitioner - Certified Registered Nurse Anesthetist (Crna) 1254228612 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 1995
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Emergenchealth PLLCGroup PAC ID 1355606641, 1,037 clinicians

Practice addresses (Care Compare)

5016 N Hwy 75
Denison, TX 75020-4584
Phone (903) 416-4000

7400 Barlite Blvd
San Antonio, TX 78224-1308
Phone (210) 921-2000

Hospital & facility affiliations

  • Texoma Medical Center Hospital, Denison, TX, CCN 450324

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
78396OKMDCertified Registered Nurse Anesthetist
562123TXMDCertified Registered Nurse Anesthetist

Practice roles

OrganizationSpecialtyStatusNew patients
Emergenchealth PLLC Nurse Anesthetist, Certified Registered CurrentSince Jul 21, 2025 Accepting new patients
Northstar Anesthesia III PA Nurse Anesthetist, Certified Registered CurrentSince Jul 13, 2022 Accepting new patients
East Texas Medical Center Past Accepting new patients
Sherman Grayson Hospital LLC Nurse Anesthetist, Certified Registered Past Accepting new patients

Locations

14425 Falcon Head Blvd
#11
Austin, TX 78738
Phone (512) 900-1006

3080 College St
#T
Beaumont, TX 77701
Phone (409) 212-5002

3315 S Alameda St
Corpus Christi, TX 78411
Phone (361) 761-1400

900 8th Ave
Ft Worth, TX 76104
Phone (817) 336-2100

6949 Bryant Irvin Rd
Ste 110
Ft Worth, TX 76132
Phone (817) 332-1818

1400 8th Ave
Ft Worth, TX 76104
Phone (817) 922-1559

6800 N MacArthur Blvd
Irving, TX 75039
Phone (972) 969-2000

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

4600 E Sam Houston Pkwy S
Pasadena, TX 77505
Phone (713) 853-9302

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

1000 S Beckham Ave
Tyler, TX 75701
Phone (903) 526-1068

11937 US Highway 271
Tyler, TX 75708
Phone (903) 877-3451

Organizations & group practices 4

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": "1165881600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1528156800000",
    "number": "1285794768",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 840853",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "752840853",
            "telephone_number": "972-233-1999",
            "fax_number": "972-233-3666"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1801 SAN JUAN DR",
            "city": "SHERMAN",
            "state": "TX",
            "postal_code": "75092",
            "telephone_number": "903-892-3012"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CLARK",
        "first_name": "LEONARD",
        "middle_name": "LIONEL",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-12-12",
        "last_updated": "2018-06-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "OK",
            "license": "78396",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "TX",
            "license": "562123",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AANA CERTIFICATION",
            "identifier": "045542",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Sherman, TX

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 5, 2018; 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.