Individual provider Active NPI

Ruth Carolina Serrano Pinilla, MD

  • Infectious Disease Physician
  • San Antonio, TX
National Provider Identifier
1285073122
Registry record updated Jan 20, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Infectious Disease PhysicianTaxonomy code 207RI0200X
License
R7596 Issued in TX
Practice address
903 W Martin St
San Antonio, TX 78207-0903
Phone
(210) 358-3710
Fax
(210) 358-5941
NPI assigned
Jun 24, 2013
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 20, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Infectious Disease Physician 207RI0200X R7596 TX Primary
Internal Medicine Physician 207R00000X R7596 TX

Addresses

Primary practice location

903 W Martin St
San Antonio, TX 78207-0903

Mailing address

903 W Martin St
San Antonio, TX 78207-0903
Phone (210) 358-3710

Other identifiers 2

IdentifierTypeStateIssuer
387257402OtherTXCSHCN
387257401MedicaidTX

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
I20180821003554 TX Practitioner - Infectious DiseasePractitioner - Internal Medicine 4688963184 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Infectious DiseaseAlso: Internal Medicine
Education
Other, 2009
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
University of Texas Health Science Center at San AntonioGroup PAC ID 0042128548, 1,290 clinicians

Practice addresses (Care Compare)

903 W Martin St
San Antonio, TX 78207-0903
Phone (210) 358-3400

Hospital & facility affiliations

  • University Health System Hospital, San Antonio, TX, CCN 450213

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Community Medicine Associates Internal Medicine CurrentSince Oct 18, 2025 Accepting 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 CurrentSince Jul 1, 2018 Accepting new patients
University of Texas Health Science Center at San Antonio CurrentSince Jul 1, 2018 Accepting new patients
Renal Associates, P.a. PastSince Jul 23, 2018 Accepting new patients

Locations

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

903 W Martin St
#492
San Antonio, TX 78207
Phone (210) 358-3441

903 W Martin St
San Antonio, TX 78207
Phone (210) 358-3400

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

Interoperability endpoints

  • Direct secure messaging: rserranopinilla50033@uhssa.direct-ci.com

Organizations & group practices 5

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": "1372032000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768867200000",
    "number": "1285073122",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "903 W MARTIN ST",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782070903",
            "telephone_number": "210-358-3710",
            "fax_number": "210-358-5941"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "903 W MARTIN ST",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782070903",
            "telephone_number": "210-358-3710",
            "fax_number": "210-358-5941"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SERRANO PINILLA",
        "first_name": "RUTH",
        "middle_name": "CAROLINA",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-06-24",
        "last_updated": "2026-01-20",
        "certification_date": "2026-01-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "TX",
            "license": "R7596",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "R7596",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CSHCN",
            "identifier": "387257402",
            "state": "TX"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "387257401",
            "state": "TX"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in San Antonio, TX

Sources for this page

Verify at the official NPI Registry.