RAUL SERGIO VILLARREAL JR. M.D.
NPI 1083008908
Allergy & Immunology in Live Oak, TX

Q: What is Raul Villarreal's NPI number?

The NPI number for Raul Villarreal is 1083008908. It was assigned to this individual provider in the NPPES registry on March 28, 2015.

Q: What is Raul Villarreal's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Q: When was this NPI record last updated?

The NPPES record for Raul Villarreal was last updated on September 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.

Active since March 28, 2015PECOS EnrolledAccepts Medicare Assignment

11515 TOEPPERWEIN RD STE 201, LIVE OAK, TX 78233(210) 646-6978(855) 919-4370 Get Directions Write a Review

NPPES record last updated: September 18, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 18, 2025, Aug 14, 2020 (2 updates tracked since 2020).

On this page

About Raul Sergio Villarreal Jr. M.d. NPPES

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

RAUL SERGIO VILLARREAL JR. M.D. (NPI 1083008908) is an individual allergy & immunology provider in Live Oak, Texas, licensed in Texas (S4411) and active in the NPI registry since March 2015. He is enrolled in Medicare PECOS and is a graduate of University Of Texas Southwestern Medical School At Dallas (2015).

NPPES Registry Identity

NPI1083008908

Entity TypeIndividualMale

Primary Taxonomy207K00000X

Provider Legal NameRAUL SERGIO VILLARREAL JR.Credential: M.D.

Location Address11515 TOEPPERWEIN RD STE 201Live Oak, TX 78233-3166

Mailing Address11515 Toepperwein Rd Ste 201Live Oak, TX 78233-3166 · (210) 646-6978 · Fax (855) 919-4370

Phone(210) 646-6978

Fax(855) 919-4370

Sole ProprietorNo

Medical School CMSUniversity Of Texas Southwestern Medical School At DallasGraduated 2015

Enumeration DateMarch 28, 2015

Last NPPES UpdateSeptember 18, 20252 updates tracked since enumeration

NPPES CertifiedSeptember 18, 2025

✔ NPI 1083008908 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians

Taxonomy Code207K00000X

License✔ Licensed in TX · S4411

Definition

An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.

Also ListedInternal Medicine · Allergy & ImmunologyTaxonomy 207RA0201X · License S4411 (TX)

11515 TOEPPERWEIN RD STE 201, Live Oak, TX 78233

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.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

Raul Sergio Villarreal Jr. M.d. 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 ID941582209

PECOS Enrollment IDI20200507000282

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 9

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.

Injection, omalizumab, 5 mg J2357

Omalizumab is a medication given via injection. It's used to treat severe allergic asthma and chronic hives when other treatments fail. The 5mg dose is determined by your doctor based on your weight and condition.

2,241 services20 patients

Test for allergy using allergenic extract 95004

An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.

1,345 services21 patients

Professional service for multiple injections of allergen 95117

The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.

345 services54 patients

Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle 96401

This procedure involves giving anti-cancer drugs, which don't contain hormones, into the muscle or under the skin. These drugs help to stop the growth of cancer cells. The process is usually quick and done by a healthcare professional.

123 services27 patients

Professional service for single injection of allergen 95115

A single allergen injection is a procedure where a small amount of a specific allergen is injected into your body. This is done to test your body's reaction to the allergen or to help your immune system become less sensitive to it, reducing allergic symptoms.

118 services20 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.

73 services53 patients

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Injection, immune globulin, intravenous, non-lyophilized (e.g., liquid), not otherwise specified, 500 mg J1599

Treatment-Injections and Infusions (nononcologic) · category RI008N

3 suppliers13 claims780 services$55.46 avg. paid by Medicare

Services, supplies and accessories used in the home under the medicare intravenous immune globulin (ivig) demonstration Q2052

Treatment-Chemotherapy · category RH012N

3 suppliers13 claims13 services$309.94 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

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

ERICA ELIZABETH GARCIA APRN

Nurse Practitioner

11515 TOEPPERWEIN RD STE 201
LIVE OAK, TX 78233

Bexar County (210) 646-6978

ALLERGY INSTITUTE OF SAN ANTONIO, P.A.

Clinic/Center (Medical Specialty)

11515 TOEPPERWEIN RD STE 201
LIVE OAK, TX 78233

Bexar County (210) 646-6978

TEXAS ALLERGY & IMMUNOLOGY GROUP

Internal Medicine (Allergy & Immunology)

11515 TOEPPERWEIN RD STE 201
LIVE OAK, TX 78233

Bexar County (210) 646-6978

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 Raul Villarreal's NPI number?

The NPI number for Raul Villarreal is 1083008908. It was assigned to this individual provider in the NPPES registry on March 28, 2015.

Where is Raul Villarreal located?

Raul Villarreal practices at 11515 Toepperwein Rd Ste 201, Live Oak, TX 78233. The listed phone number is (210) 646-6978.

What is Raul Villarreal's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Raul Villarreal enrolled in Medicare?

Yes. Raul Villarreal 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 Raul Villarreal accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 5 other insurers list Raul Villarreal 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.

When was this NPI record last updated?

The NPPES record for Raul Villarreal was last updated on September 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.