DR. RUTH CAROLINA SERRANO PINILLA MD
NPI 1285073122
Internal Medicine - Infectious Disease in San Antonio, TX

Active since June 24, 2013PECOS EnrolledAccepts Medicare Assignment
903 W MARTIN ST, SAN ANTONIO, TX 78207(210) 358-3710(210) 358-5941 Get Directions Write a Review

NPPES record last updated: January 20, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 20, 2026, Jan 16, 2019, Sep 26, 2018 and 1 more (4 updates tracked since 2018).

About Dr. Ruth Carolina Serrano Pinilla Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. RUTH CAROLINA SERRANO PINILLA MD (NPI 1285073122) is an individual infectious disease provider in San Antonio, Texas, licensed in Texas (R7596) and active in the NPI registry since June 2013. She is enrolled in Medicare PECOS, is affiliated with University Health System, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1285073122
Entity TypeIndividualFemale
Primary Taxonomy207RI0200X
Provider Legal NameDR. RUTH CAROLINA SERRANO PINILLACredential: MD
Location Address903 W MARTIN STSan Antonio, TX 78207-0903
Mailing Address903 W Martin StSan Antonio, TX 78207-0903 · (210) 358-3710 · Fax (210) 358-5941
Fax(210) 358-5941
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateJune 24, 2013
Last NPPES UpdateJanuary 20, 20264 updates tracked since enumeration
NPPES CertifiedJanuary 20, 2026
NPI 1285073122 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License Licensed in TX · R7596
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
Also ListedInternal MedicineTaxonomy 207R00000X · License R7596 (TX)
903 W MARTIN ST, San Antonio, TX 78207

Other Identifiers 2

Other387257402TX · Cshcn
Medicaid387257401TX

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Ruth Carolina Serrano Pinilla Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4688963184
PECOS Enrollment IDI20180821003554
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
62 services14 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
27 services19 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
26 services25 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Health System

Acute Care Hospitals · San Antonio, TX
3/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number450213
Location4502 Medical DrSan Antonio, TX 78229 · Bexar County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78207 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Social Worker (Clinical)
903 W MARTIN ST
SAN ANTONIO, TX 78207
Student in an Organized Health Care Education/Training Program
903 W MARTIN ST
SAN ANTONIO, TX 78207
Nurse Practitioner
903 W MARTIN ST
SAN ANTONIO, TX 78207
Student in an Organized Health Care Education/Training Program
903 W MARTIN ST
SAN ANTONIO, TX 78207
Community Health Worker
903 W MARTIN ST
SAN ANTONIO, TX 78207
Student in an Organized Health Care Education/Training Program
903 W MARTIN ST
SAN ANTONIO, TX 78207
Pediatrics
903 W MARTIN ST
SAN ANTONIO, TX 78207
Genetic Counselor, MS
903 W MARTIN ST
SAN ANTONIO, TX 78207

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ruth Serrano Pinilla's NPI number?

The NPI number for Ruth Serrano Pinilla is 1285073122. It was assigned to this individual provider in the NPPES registry on June 24, 2013.

Where is Ruth Serrano Pinilla located?

Ruth Serrano Pinilla practices at 903 W Martin St, San Antonio, TX 78207. The listed phone number is (210) 358-3710.

What is Ruth Serrano Pinilla's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Ruth Serrano Pinilla enrolled in Medicare?

Yes. Ruth Serrano Pinilla is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Ruth Serrano Pinilla accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Imperial Insurance Companies, Inc. and Molina Healthcare list Ruth Serrano Pinilla as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Ruth Serrano Pinilla affiliated with any hospitals?

According to CMS data, Ruth Serrano Pinilla is affiliated with University Health System.

When was this NPI record last updated?

The NPPES record for Ruth Serrano Pinilla was last updated on January 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.