Samuel Duggins Leonard, MD

Primary specialty

Vascular Surgery PhysicianTaxonomy code 2086S0129X

License

S7907 Issued in TX

Practice address

6400 Fannin St Ste 2850
Houston, TX 77030-1540

Phone

(713) 486-5100

NPI assigned

Apr 8, 2019

Last updated

Jun 4, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

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: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Vascular Surgery

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Seton Family of DoctorsGroup PAC ID 0941333280, 785 clinicians

Christus Trinity Clinic TexasGroup PAC ID 3072426741, 1,540 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ascension Seton Medical Center Austin Hospital, Austin, TX, CCN 450056
• Ascension Seton Hays Hospital, Kyle, TX, CCN 670056
• Dell Seton Med Center at the University of TX Hospital, Austin, TX, CCN 450124
• Ascension Seton Williamson Hospital, Round Rock, TX, CCN 670041
• Ascension Seton Northwest Hospital, Austin, TX, CCN 450867

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: sleonard584234@christushealth.direct-ci.net
• Direct secure messaging: samuel.leonard.1@8363.direct.athenahealth.com

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.

• Christus Trinity Clinic Texas

  dba Christus Trinity Clinic

  • Family Medicine Physician
  • Tyler, TX
  • NPI 1285684225
  Medicare reassignment Care Compare group NPD
• Seton Family of Doctors

  • Neurological Surgery Physician
  • Austin, TX
  • NPI 1588997233
  Medicare reassignment Care Compare group NPD
• Christus Trinity Clinic Texas

  dba Christus Trinity Clinic

  • Rural Health Clinic/Center
  • Winnsboro, TX
  • NPI 1801673165
  NPD
• Seton Family of Doctors

  dba Ascension Texas Imaging

  • Radiology Clinic/Center
  • Austin, TX
  • NPI 1275290694
  NPD
• Seton Family of Doctors

  • Neurological Surgery Physician
  • Kyle, TX
  • NPI 1730412388
  NPD

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

• Ascension Seton

  dba Dell Seton Medical Center at the University of Texas

  • General Acute Care Hospital
  • Austin, TX
  • NPI 1093810327
  Care Compare affiliation
• Ascension Seton

  dba Ascension Seton Northwest

  • General Acute Care Hospital
  • Austin, TX
  • NPI 1124137054
  Care Compare affiliation
• Ascension Seton

  dba Ascension Seton Medical Center Austin

  • General Acute Care Hospital
  • Austin, TX
  • NPI 1164526786
  Care Compare affiliation
• Ascension Seton

  dba Ascension Seton Williamson

  • General Acute Care Hospital
  • Round Rock, TX
  • NPI 1578780870
  Care Compare affiliation
• Ascension Seton

  dba Ascension Seton Hays

  • General Acute Care Hospital
  • Kyle, TX
  • NPI 1619115383
  Care Compare affiliation

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

{
    "created_epoch": "1554681600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1748995200000",
    "number": "1649733551",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6400 FANNIN ST STE 2850",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770301540",
            "telephone_number": "713-486-5100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6400 FANNIN ST STE 2850",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770301540",
            "telephone_number": "713-486-5100"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "5002 Cowhorn Creek Rd Ste 2109",
            "address_purpose": "LOCATION",
            "city": "Texarkana",
            "state": "TX",
            "postal_code": "755039766",
            "country_code": "US",
            "telephone_number": "903-614-3000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LEONARD",
        "first_name": "SAMUEL",
        "middle_name": "DUGGINS",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-04-08",
        "last_updated": "2025-06-04",
        "certification_date": "2025-06-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "2086S0129X",
            "taxonomy_group": "",
            "desc": "Surgery, Vascular Surgery",
            "state": "TX",
            "license": "S7907",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jennifer Marie Leonard, MD
• Kimberly Leonard
• Patricia A. Leonard, M.D.
• Rachel Elizabeth Leonard, AGNP-C
• Rhonda Leonard
• Samuel J. Leonard, PHD
• Sheryle Marie Leonard
• Tanya She-Von Leonard, PHARM. D
• Tommy Leonard Jr., MD
• Alexandra Leonardo-Hsu

• Vascular Surgery Physician in Houston, TX
• Providers in Houston, TX by specialty
• Vascular Surgery Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 4, 2025; 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.