Individual provider Active NPI

Adam Nathaniel Letvin, MD

  • Pulmonary Disease Physician
  • San Antonio, TX
National Provider Identifier
1245725118
Registry record updated Aug 17, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pulmonary Disease PhysicianTaxonomy code 207RP1001X
License
V3366 Issued in TX
Practice address
4502 Medical Dr
San Antonio, TX 78229-4402
Phone
(210) 617-5256
Fax
(210) 567-6418
NPI assigned
Jun 24, 2018
Last updated
Aug 17, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 17, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X V3366 TX
Critical Care Medicine (Internal Medicine) Physician 207RC0200X V3366 TX
Pulmonary Disease Physician 207RP1001X V3366 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 (617) 872-1294

Other practice location 1

2401 S 31st St # 9C513C
Temple, TX 76508-0001
Phone (254) 724-7633

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20240905004830 TX Practitioner - Pulmonary DiseasePractitioner - Internal MedicinePractitioner - Critical Care (Intensivists) 6204185531 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Pulmonary DiseaseAlso: Critical Care (Intensivists)
Education
Other, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices

Practice addresses (Care Compare)

8435 Wurzbach Rd
Suite 305
San Antonio, TX 78229-3374
Phone (210) 450-7334

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
2018019897MOMDInternal Medicine Physician
BP10076177TXMDPulmonary Disease Physician

Practice roles

OrganizationSpecialtyStatusNew patients
The University of Texas Health Science Center at San Antonio CurrentSince Aug 16, 2024 Accepting new patients
University of Texas Health Science Center at San Antonio Internal Medicine CurrentSince Aug 16, 2024 Accepting new patients

Locations

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

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

7703 Floyd Curl Dr
Ste MC7977
San Antonio, TX 78229

8435 Wurzbach Rd
Ste 305
San Antonio, TX 78229
Phone (210) 450-9800

Interoperability endpoints

  • Direct secure messaging: aletvin56754@direct.utmsa.com
  • Direct secure messaging: aletvin828490@direct.sw.org

Organizations & group practices 2

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.

Hospital & facility affiliations 2

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": "1529798400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786924800000",
    "number": "1245725118",
    "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": "617-872-1294"
        },
        {
            "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": "210-617-5256",
            "fax_number": "210-567-6418"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2401 S 31st St # 9C513C",
            "address_purpose": "LOCATION",
            "city": "Temple",
            "state": "TX",
            "postal_code": "765080001",
            "country_code": "US",
            "telephone_number": "254-724-7633",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LETVIN",
        "first_name": "ADAM",
        "middle_name": "NATHANIEL",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-06-24",
        "last_updated": "2026-08-17",
        "certification_date": "2026-08-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "V3366",
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "TX",
            "license": "V3366",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "TX",
            "license": "V3366",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Antonio, TX

Sources for this page

Verify at the official NPI Registry.