RAUL SERGIO VILLARREAL JR. M.D.
NPI 1083008908
Allergy & Immunology in Live Oak, TX
NPI Status: Active since March 28, 2015
Contact Information
11515 TOEPPERWEIN RD STE 201
LIVE OAK, TX
ZIP 78233
Phone: (210) 646-6978
Fax: (855) 919-4370
- Individual
- Male
- Allergy & Immunology
- Accepts Insurance
- PECOS Enrolled
About RAUL VILLARREAL
This page provides the complete NPI Profile along with additional information for Raul Villarreal, a provider established in Live Oak, Texas with a medical specialization in Allergy & Immunology. The healthcare provider is registered in the NPI registry with number 1083008908 assigned on March 2015. The practitioner's primary taxonomy code is 207K00000X with license number S4411 (TX). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1083008908
- Provider Name
- RAUL SERGIO VILLARREAL JR. M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 11515 TOEPPERWEIN RD STE 201 LIVE OAK, TX 78233
- Location Phone
- (210) 646-6978
- Location Fax
- (855) 919-4370
- Mailing Address
- 11515 TOEPPERWEIN RD STE 201 LIVE OAK, TX 78233
- Mailing Phone
- (210) 646-6978
- Mailing Fax
- (855) 919-4370
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-28-2015
- Last Update Date
- 09-18-2025
- Code Navigator
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Allergy & Immunology
- Taxonomy Code
- 207K00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- S4411
- License State
- TX
- Taxonomy Description
- 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.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 207RA0201X | Allopathic & Osteopathic Physicians | Internal Medicine | S4411 (TX) |
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Choice Bronze HSA - HMO
- Choice Bronze HSA + Vision + Adult Dental - HMO
- Complete Gold - HMO
- Complete Gold + Vision + Adult Dental - HMO
- Complete Silver - HMO
- Complete Silver + Vision + Adult Dental - HMO
- Elite Gold - HMO
- Elite Gold + Vision + Adult Dental - HMO
- Everyday Bronze - HMO
- Everyday Bronze + Vision + Adult Dental - HMO
- Standard Expanded Bronze - HMO
- Standard Expanded Bronze + Vision + Adult Dental - HMO
- Standard Gold - HMO
- Standard Gold + Vision + Adult Dental - HMO
- Standard Silver - HMO
- Standard Silver + Vision + Adult Dental - HMO
- Choice Bronze HSA (QualChoice) - POS
- Complete Gold - PPO
- Complete Gold + Vision + Adult Dental - PPO
- Connected Silver - PPO
- Connected Silver (QualChoice) - POS
- Connected Silver (QualChoice) + Vision + Adult Dental - POS
- Connected Silver (QualChoiceLife) - PPO
- Connected Silver (QualChoiceLife) + Vision + Adult Dental - PPO
- Connected Silver + Vision + Adult Dental - PPO
- Elite Bronze - PPO
- Elite Bronze + Vision + Adult Dental - PPO
- Elite Gold (QualChoice) - POS
- Elite Gold (QualChoice) + Vision + Adult Dental - POS
- Elite Gold (QualChoiceLife) - PPO
- Elite Gold (QualChoiceLife) + Vision + Adult Dental - PPO
- Everyday Bronze - PPO
- Everyday Bronze + Vision + Adult Dental - PPO
- Standard Expanded Bronze - PPO
- Standard Expanded Bronze (QualChoice) - POS
- Standard Expanded Bronze + Vision + Adult Dental - PPO
- Complete Gold - EPO
- Complete Gold + Vision + Adult Dental - EPO
- Elite Bronze - EPO
- Elite Bronze + Vision + Adult Dental - EPO
- Elite Gold - EPO
- Elite Gold + Vision + Adult Dental - EPO
- Everyday Bronze - EPO
- Everyday Bronze + Vision + Adult Dental - EPO
- Focused Silver - EPO
- Focused Silver + Vision + Adult Dental - EPO
- Standard Expanded Bronze - EPO
- Standard Expanded Bronze + Vision + Adult Dental - EPO
- Standard Gold - EPO
- Standard Gold + Vision + Adult Dental - EPO
- Standard Silver - EPO
- Standard Silver + Vision + Adult Dental - EPO
- Complete Gold - EPO
- Complete Gold + Vision + Adult Dental - EPO
- Enhanced Diabetes Care Silver with $0 Drug Options - EPO
- Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - EPO
- Everyday Gold - EPO
- Everyday Gold + Vision + Adult Dental - EPO
- Focused Silver - EPO
- Focused Silver + Vision + Adult Dental - EPO
- Standard Gold - EPO
- Standard Gold + Vision + Adult Dental - EPO
- Standard Silver - EPO
- Standard Silver + Vision + Adult Dental - EPO
- Elite Bronze - PPO
- Elite Bronze + Vision + Adult Dental - PPO
- Elite Gold - PPO
- Elite Gold + Vision + Adult Dental - PPO
- Enhanced Asthma/COPD Care Silver with $0 Drug Options - PPO
- Enhanced Asthma/COPD Care Silver with $0 Drug Options + Vision + Adult Dental - PPO
- Enhanced Diabetes Care Silver with $0 Drug Options - PPO
- Enhanced Diabetes Care Silver with $0 Drug Options + Vision + Adult Dental - PPO
- Everyday Bronze - PPO
- Everyday Bronze + Vision + Adult Dental - PPO
- Everyday Gold - PPO
- Everyday Gold + Vision + Adult Dental - PPO
- Focused Silver - PPO
- Focused Silver + Vision + Adult Dental - PPO
- Standard Expanded Bronze - PPO
- Standard Expanded Bronze + Vision + Adult Dental - PPO
- Standard Gold - PPO
- Standard Gold + Vision + Adult Dental - PPO
- Standard Silver - PPO
- Standard Silver + Vision + Adult Dental - PPO
- Blue Advantage Bronze HMO? 204 - HMO
- Blue Advantage Bronze HMO? 301 - HMO
- Blue Advantage Bronze HMO? Standard - HMO
- Blue Advantage Gold HMO? 206 - HMO
- Blue Advantage Gold HMO? 603 - HMO
- Blue Advantage Gold HMO? Standard - HMO
- Blue Advantage Plus Bronze? 303 - POS
- Blue Advantage Plus Bronze? 305 - POS
- Blue Advantage Plus Bronze? Standard - POS
- Blue Advantage Plus Gold? 203 - POS
- Blue Advantage Plus Gold? 803 - POS
- Blue Advantage Plus Gold? Standard - POS
- Blue Advantage Plus Silver? 202 - POS
- Blue Advantage Plus Silver? 605 - POS
- Blue Advantage Plus Silver? Standard - POS
- Blue Advantage Security HMO? 200 - HMO
- Blue Advantage Silver HMO? 205 - HMO
- Blue Advantage Silver HMO? 801 - HMO
- Blue Advantage Silver HMO? Standard - HMO
- Imperial Preferred Bronze - HMO
- Imperial Preferred Gold - HMO
- Imperial Preferred Gold Zero - HMO
- Imperial Preferred Silver - HMO
- Imperial Standard Bronze - HMO
- Imperial Standard Gold - HMO
- Imperial Standard Silver - HMO
- Molina Gold Core 1640 - HMO
- Molina Gold Core 1640 Plus with Adult Dental and Vision - HMO
- Molina Gold Core 1640 Plus with Adult Vision - HMO
- Molina Gold Saver 750 - HMO
- Molina Gold Saver 750 Plus with Adult Dental and Vision - HMO
- Molina Gold Saver 750 Plus with Adult Vision - HMO
- Molina Gold Standard - HMO
- Molina Silver Core - HMO
- Molina Silver Core Plus with Adult Dental and Vision - HMO
- Molina Silver Core Plus with Adult Vision - HMO
- Molina Silver Saver with Four Free PCP Visits - HMO
- Molina Silver Standard - HMO
- Bronze Classic 4700 - EPO
- Bronze Classic Standard - EPO
- Bronze Elite + PCP Saver Plus - EPO
- Bronze Simple Breathe Easy with Enhanced COPD Benefits - EPO
- Bronze Simple Chronic Care CKM - EPO
- Bronze Simple Diabetes - EPO
- Gold Classic - EPO
- Gold Classic Guided Care - HMO
- Gold Classic Standard - EPO
- Gold Classic Standard Guided Care - HMO
- Gold Elite - EPO
- Gold Simple Diabetes Guided Care - HMO
- Gold Simple Guided Care - HMO
- Silver Classic - EPO
- Silver Classic Standard - EPO
- Silver Classic Standard Guided Care - HMO
- Silver Simple Breathe Easy with Enhanced COPD Benefits Guided Care - HMO
- Silver Simple Chronic Care CKM Guided Care - HMO
- Silver Simple Diabetes Guided Care - HMO
- Silver Simple Guided Care - HMO
- Wellpoint Essential Bronze 4000 HSA (+ Incentives) - HMO
- Wellpoint Essential Bronze 6000 ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Bronze 6000 Adult Dental/Vision ($0 Virtual PCP+$0 Select Drugs) - HMO
- Wellpoint Essential Bronze 7500 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Bronze POS 4500 ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
- Wellpoint Essential Bronze POS 5500 ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
- Wellpoint Essential Bronze POS 7500 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
- Wellpoint Essential Catastrophic (+ Incentives) - HMO
- Wellpoint Essential Gold 1500 ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Gold 2000 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Gold 800 ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Gold POS 1000 ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
- Wellpoint Essential Gold POS 2000 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
- Wellpoint Essential Gold POS 700 ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
- Wellpoint Essential Silver 1850 ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Silver 3500 ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Silver 3500 Adult Dental/Vision ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Silver 6000 Standard ($0 Virtual PCP + $0 Select Drugs + Incentives) - HMO
- Wellpoint Essential Silver POS 2500 ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
- Wellpoint Essential Silver POS 4000 ($0 Virtual PCP + $0 Select Drugs + Incentives) - POS
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Raul Villarreal is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Provider Referred Orders for Durable Medical Equipment, Devices & Supplies
The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.
Unknown
Treatment-Injections and Infusions (nononcologic) (RI008N)
Injection, immune globulin, intravenous, non-lyophilized (e.g., liquid), not otherwise specified, 500 mg (HCPCS:J1599)
3 DME suppliers used 13 Medicare Claims 780 Services Paid
Treatment-Chemotherapy (RH012N)
Services, supplies and accessories used in the home under the medicare intravenous immune globulin (ivig) demonstration (HCPCS:Q2052)
3 DME suppliers used 13 Medicare Claims 13 Services Paid
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Established patient office or other outpatient visit, 20-29 minutes
Established patient office or other outpatient visit, 30-39 minutes
Evaluation of use of breathing device
New patient office or other outpatient visit, 45-59 minutes
New patient office or other outpatient visit, 60-74 minutes
Professional service for preparation and provision of 1 or more antigens
Test for allergy using allergenic extract
Test for allergy using allergenic extract injected into skin
Test to measure expiratory airflow and volume
Test to measure the level of nitric oxide gas
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
This service was performed 45 times for 30 patientsThis 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.
This service was performed 81 times for 55 patientsThe evaluation of a breathing device involves checking how effectively you're using it to manage your respiratory condition. It assesses the device's fit, your comfort, and your technique to ensure optimal results.
This service was performed 63 times for 37 patientsThis is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
This service was performed 18 times for 18 patientsThis is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
This service was performed 15 times for 15 patientsThis service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.
This service was performed 890 times for 11 patientsAn 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.
This service was performed 1,835 times for 28 patientsAn allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.
This service was performed 410 times for 17 patientsThis test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.
This service was performed 83 times for 49 patientsA test to measure the level of nitric oxide gas helps assess inflammation in the lungs, often linked with asthma. You'll breathe into a device, and it'll provide a reading of nitric oxide levels. This helps monitor and manage respiratory conditions.
This service was performed 37 times for 23 patientsReviews for RAUL SERGIO VILLARREAL JR. M.D.
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1083008908, we treat the final digit (8) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 52 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 2 providers are registered at the same or a nearby location.
LIVE OAK, TX 78233
LIVE OAK, TX 78233
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1083008908, enumerated as an "individual" on March 28, 2015.
The provider is located at 11515 TOEPPERWEIN RD STE 201 LIVE OAK, TX 78233 and the phone number is (210) 646-6978.
Allergy & Immunology with taxonomy code 207K00000X.
The provider might be accepting Accepts: Ambetter from Arizona Complete Health, Ambetter. Please consult your insurance carrier or call the provider to verify.