Active NPI
Leroy James Seymour, MD
- Geriatric Medicine (Internal Medicine) Physician
- San Antonio, TX
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Geriatric Medicine (Internal Medicine) Physician
- License
- W0292
- Practice address
- 4502 Medical Dr
San Antonio, TX 78229-4402 - Phone
- (210) 358-3555
- Fax
- (210) 702-4239
- NPI assigned
- Mar 26, 2020
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | W0292 | TX | |
| Geriatric Medicine (Internal Medicine) Physician | 207RG0300X | W0292 | 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) 358-4000
Other practice location 1
8311 Ewing Halsell Dr
San Antonio, TX 78229-3741
Phone (210) 562-8000
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in WI, TX
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Geriatric Medicine
- Education
- University of Illinois College of Med (CHI/Peor/Rock/CHM-Urb), 2020
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
4502 Medical Dr
San Antonio, TX 78229-4402
Phone (210) 358-4000
Hospital & facility affiliations
- University Health System
Merit-based Incentive Payment System (MIPS)
- Final score
- 87.99 of 100
- Quality
- 82.81
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 77.15
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| W0292 | TX | MD | Geriatric Medicine (Internal Medicine) Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| University of Texas Health Science Center at San Antonio | Internal Medicine | Current | Accepting new patients |
| The University of Texas Health Science Center at San Antonio | Current | Accepting new patients | |
| The Medical College of Wisconsin, Inc. | Internal Medicine | Current | Accepting new patients |
| University of Texas Health Science Center at San Antonio | Current | 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
8311 Ewing Halsell Dr
San Antonio, TX 78229
Phone (210) 562-8000
9200 W Wisconsin Ave
Wauwatosa, WI 53226
Phone (414) 259-3000
8701 Watertown Plank Rd
Wauwatosa, WI 53226
Phone (414) 456-4100
Interoperability endpoints
- lseymour386864@direct.froedtert.com
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.
-
- Internal Medicine Physician
- San Antonio, TX
- NPI 1720051717
-
- Internal Medicine Physician
- Milwaukee, WI
- NPI 1699720086
-
- General Acute Care Hospital
- San Antonio, TX
- NPI 1326829904
-
- Diagnostic Radiology Physician
- Boerne, TX
- NPI 1417921834
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- San Antonio, TX
- NPI 1821011248
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1585180800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1754870400000",
"number": "1962039081",
"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": "210-358-4000"
},
{
"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": "210-358-3555",
"fax_number": "210-702-4239"
}
],
"practiceLocations": [
{
"address_1": "8311 Ewing Halsell Dr",
"address_purpose": "LOCATION",
"city": "San Antonio",
"state": "TX",
"postal_code": "782293741",
"country_code": "US",
"telephone_number": "210-562-8000",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "SEYMOUR",
"first_name": "LEROY",
"middle_name": "JAMES",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2020-03-26",
"last_updated": "2025-08-11",
"certification_date": "2025-08-11",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "TX",
"license": "W0292",
"primary": false
},
{
"code": "207RG0300X",
"taxonomy_group": "",
"desc": "Internal Medicine, Geriatric Medicine",
"state": "TX",
"license": "W0292",
"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 11, 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.