Active NPI
Rio Valley Emergency Physician Associates PLLC
- Emergency Medicine Physician
- Edinburg, TX
National Provider Identifier
1134827934
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Emergency Medicine Physician
- Legal business name
- RIO VALLEY EMERGENCY PHYSICIAN ASSOCIATES PLLC
- Practice address
- 1102 W Trenton Rd
Edinburg, TX 78539-9105 - Phone
- (956) 388-6000
- NPI assigned
- Feb 21, 2023
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Christopher Guadarrama, MD
- Title
- Coo
- Phone
- (956) 242-4452
Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Emergency Medicine Physician | 207P00000X | Primary |
Addresses
Primary practice location
1102 W Trenton Rd
Edinburg, TX 78539-9105
Mailing address
PO Box 2238
San Antonio, TX 78298-2238
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in TX
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| O20230404001024 | TX | Part B Supplier - Clinic/Group Practice | 5597130658 |
Receives reassigned benefits from 73 practitioners Practice locations: Edinburg, TX; McAllen, TX |
National Provider Directory
National Provider DirectoryPractitioners & affiliated clinicians
Practitioners 75
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.
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Emergency Medicine, TX
-
- Emergency Medical Services (Emergency Medicine) Physician
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- NPI 1851326763
TX
-
- Emergency Medicine Physician
- Houston, TX
- NPI 1871979906
Emergency Medicine, TX
-
- Emergency Medicine Physician
- San Antonio, TX
- NPI 1003264375
Emergency Medicine, TX
-
- Emergency Medicine Physician
- McAllen, TX
- NPI 1114450392
Emergency Medicine, TX
-
- Pediatric Emergency Medicine (Emergency Medicine) Physician
- San Antonio, TX
- NPI 1942273511
TX
-
- Critical Care Pediatric Nurse Practitioner
- Edinburg, TX
- NPI 1275312852
TX
-
- Emergency Medical Services (Emergency Medicine) Physician
- Austin, TX
- NPI 1750327995
Emergency Medicine, TX
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1676937600000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1761782400000",
"number": "1134827934",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 2238",
"city": "SAN ANTONIO",
"state": "TX",
"postal_code": "782982238"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1102 W TRENTON RD",
"city": "EDINBURG",
"state": "TX",
"postal_code": "785399105",
"telephone_number": "956-388-6000"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "RIO VALLEY EMERGENCY PHYSICIAN ASSOCIATES PLLC",
"organizational_subpart": "NO",
"enumeration_date": "2023-02-21",
"last_updated": "2025-10-30",
"certification_date": "2025-10-30",
"status": "A",
"authorized_official_last_name": "GUADARRAMA",
"authorized_official_first_name": "CHRISTOPHER",
"authorized_official_title_or_position": "COO",
"authorized_official_telephone_number": "956-242-4452",
"authorized_official_credential": "MD"
},
"taxonomies": [
{
"code": "207P00000X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Emergency Medicine",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Edinburg, TX
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 30, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.